Dev Tools & APIs

  • Sellix

    Sellix

    Sellix is a versatile e-commerce platform designed for digital products and services. Here’s a brief summary: Sellix is an all-in-one e-commerce solution that specializes in helping businesses sell digital products, subscriptions, and services online. It offers a range of features including: Easy setup and customization of online stores Support for various digital product types (software, e-books, courses, etc.) Multiple payment gateway integrations Automated delivery of digital products Subscription and license key management Analytics and reporting tools API for developers Affiliate program management Sellix is particularly popular among digital creators, software developers, and online entrepreneurs who want a straightforward way to monetize their digital offerings. The platform emphasizes security, ease of use, and flexibility, making it a go-to choice for those looking to start or expand their digital product business.
  • Crowdin

    Crowdin

    Crowdin is a cloud-based localization management platform that streamlines the process of translating and localizing digital content. It offers a comprehensive suite of tools for managing multilingual projects, including websites, mobile apps, games, and various other types of content. Crowdin provides features such as translation memory, machine translation, collaborative translation, and integration with popular development tools. It supports over 300 languages and file formats, making it suitable for a wide range of localization needs. The platform is designed to help businesses and organizations efficiently manage their localization workflows, improve translation quality, and reduce time-to-market for global products and services.
  • AbuselPDB

    AbuselPDB

    AbuseIPDB is a project dedicated to helping combat the spread of hackers, spammers, and abusive activity on the internet. The project aims to create a central repository for webmasters, system administrators, and other interested parties to report and find IP addresses that have been associated with malicious activity online. AbuseIPDB provides a database of reported IP addresses, along with an API that allows users to query and report abusive IPs programmatically. This tool is particularly useful for: Checking the reputation of an IP address Reporting abusive IP addresses Protecting websites and servers from potential threats Integrating IP reputation data into security systems The service offers both free and paid plans, allowing users to access different levels of information and API functionality based on their needs. AbuseIPDB’s community-driven approach helps in creating a comprehensive and up-to-date database of potentially malicious IP addresses, making it a valuable resource for cybersecurity professionals and website owners alike.
  • Databricks

    Databricks

    Databricks is a leading data and AI company that provides a unified platform for data engineering, machine learning, and analytics. Databricks offers a collaborative environment that enables organizations to process and analyze large-scale data, develop and deploy machine learning models, and derive valuable insights from their data. Key features of Databricks include: Lakehouse Architecture: Combines the best elements of data lakes and data warehouses. Apache Spark Integration: Built on top of Apache Spark for distributed computing. Collaborative Notebooks: Interactive development environment for data scientists and analysts. MLflow Integration: For managing the machine learning lifecycle. Delta Lake: An open-source storage layer that brings reliability to data lakes. Auto ML: Automated machine learning capabilities for faster model development. Data Governance: Built-in tools for data lineage, access control, and compliance. Databricks is widely used by enterprises across various industries to accelerate innovation, improve operational efficiency, and drive data-driven decision making.
  • Mux

    Mux

    Mux is a powerful video infrastructure platform that provides developers with APIs for video hosting, streaming, and analytics. It offers a suite of tools designed to simplify the process of working with video, allowing developers to build high-quality video experiences into their applications without the complexity of traditional video infrastructure. Mux empowers developers to integrate video functionalities seamlessly, offering features such as: Video hosting and delivery Live streaming Video encoding and transcoding Real-time analytics Video playback optimization Adaptive bitrate streaming Mux’s API-first approach makes it easy to incorporate video capabilities into websites, mobile apps, and other digital platforms. It handles the complexities of video processing, storage, and delivery, allowing developers to focus on creating engaging user experiences. With its robust infrastructure and developer-friendly tools, Mux is suitable for a wide range of applications, from social media platforms and e-learning websites to OTT services and enterprise video solutions. The platform’s scalability ensures it can handle projects of any size, from small startups to large-scale video-centric applications.
  • IdealPostcodes

    IdealPostcodes

    IdealPostcodes is a powerful address validation and geocoding service designed for businesses in the United Kingdom. IdealPostcodes provides developers with easy-to-use APIs that enable accurate address lookup, postcode validation, and address autocomplete functionality. This tool helps organizations improve data quality, reduce shipping errors, and enhance user experience on forms and checkout pages. IdealPostcodes uses official Royal Mail PAF (Postcode Address File) data, ensuring the highest level of accuracy for UK addresses. The service offers various integration options, including RESTful APIs, JavaScript libraries, and plugins for popular e-commerce platforms, making it versatile for different development needs. With features like fuzzy matching, multiple language support, and GDPR compliance, IdealPostcodes is an essential tool for businesses operating in the UK market that need reliable address data management solutions.
  • WebScraper.IO

    WebScraper.IO

    WebScraper.IO is a powerful web scraping tool that allows users to extract data from websites without coding. It offers a browser extension for Chrome and Firefox, enabling point-and-click scraping. The tool supports scraping of dynamic websites, pagination, and can handle complex data structures. WebScraper.IO also provides a cloud scraping service for automated data extraction at scale. It’s suitable for various use cases including e-commerce monitoring, lead generation, and market research. WebScraper.IO offers both free and paid plans, making it accessible for individual users and businesses alike.
  • Cloudlayer

    Cloudlayer

    Cloudlayer is a powerful and versatile cloud-based platform that offers a range of document processing and conversion services. It provides APIs for converting, generating, and manipulating various types of documents and images. Cloudlayer specializes in PDF generation, HTML to PDF conversion, image processing, and OCR (Optical Character Recognition) capabilities. The platform is designed to be developer-friendly, with easy integration into existing workflows and applications. Cloudlayer’s services are scalable and can handle high-volume document processing tasks, making it suitable for businesses of all sizes. Its robust API allows developers to automate document-related tasks, improve efficiency, and enhance document management processes. With features like secure document handling, customizable templates, and support for multiple input and output formats, Cloudlayer offers a comprehensive solution for organizations looking to streamline their document workflows in the cloud.
  • Metatext.AI Inference API

    Metatext.AI Inference API

    Metatext.AI Inference API is a powerful natural language processing tool that offers various AI-powered text analysis capabilities. It provides developers and businesses with advanced NLP functionalities through an easy-to-use API. The service includes features such as text classification, named entity recognition, sentiment analysis, and more. Metatext.AI aims to simplify the integration of sophisticated language models into applications, enabling users to extract valuable insights from textual data efficiently.
  • Mx Toolbox

    Mx Toolbox

    MxToolbox is a comprehensive online platform that provides a suite of network diagnostic and management tools for IT professionals, system administrators, and developers. It specializes in email-related diagnostics, DNS management, and various network testing utilities. MxToolbox offers tools for: Email server testing (MX record lookup, SMTP diagnostics) DNS management and diagnostics Blacklist checking SSL certificate verification Website health monitoring WHOIS lookup IP geolocation These tools help users troubleshoot email delivery issues, verify domain configurations, and ensure optimal network performance. MxToolbox is widely used for its user-friendly interface and the ability to quickly diagnose common networking problems. Many of its basic tools are available for free, with premium plans offering more advanced features and detailed reporting capabilities.
  • Klazify

    Klazify

    Klazify is a powerful website categorization and company information API. It provides developers and businesses with the ability to instantly categorize URLs and obtain detailed information about companies. The API offers features such as domain categorization, company data retrieval, and logo detection. Klazify utilizes machine learning algorithms to accurately classify websites into various categories, making it useful for content filtering, ad targeting, and business intelligence applications. The service is designed to be easy to integrate and scalable, supporting high-volume requests for efficient data processing.
  • Short.io

    Short.io

    Short.io is a powerful URL shortening and link management platform. It provides a comprehensive solution for businesses and individuals to create, track, and manage branded short links. The tool offers features such as custom domains, link analytics, retargeting pixels, and API access for seamless integration with other applications. Short.io enables users to enhance their online presence, improve click-through rates, and gain valuable insights into link performance.
  • Datarobot

    Datarobot

    DataRobot is a leading enterprise AI platform that accelerates data science and machine learning workflows. It automates many aspects of data preparation, feature engineering, model selection, and deployment, making AI accessible to both data scientists and business users. DataRobot’s platform incorporates automated machine learning (AutoML) capabilities, allowing users to build and deploy highly accurate predictive models quickly. Key features of DataRobot include: Automated Machine Learning: Rapidly tests and evaluates numerous algorithms and feature combinations. Model Interpretability: Provides clear explanations of model decisions and feature importance. Time Series Forecasting: Specialized capabilities for time-based predictions. MLOps: Tools for model deployment, monitoring, and management in production environments. Visual AI: Incorporates computer vision and image processing capabilities. NLP: Supports text analytics and natural language processing tasks. Bias and Fairness: Helps identify and mitigate bias in AI models. DataRobot caters to various industries, including finance, healthcare, retail, and manufacturing, enabling organizations to leverage AI for improved decision-making and operational efficiency. The platform’s user-friendly interface and robust capabilities make it suitable for both experienced data scientists and citizen data scientists, democratizing access to advanced analytics and AI technologies.
  • InfluxDB Cloud

    InfluxDB Cloud

    InfluxDB Cloud is a fully managed, serverless time series database platform designed for modern monitoring, metrics, and IoT applications. It offers real-time data ingestion, querying, and visualization capabilities with automatic scaling and high availability. Key features of InfluxDB Cloud include: Time series optimized: Purpose-built for handling time-stamped data efficiently. Scalable and serverless: Automatically scales resources based on usage, with no infrastructure management required. Multi-tenancy: Supports multiple users and organizations with built-in security features. Flux query language: A powerful functional language for data analysis and processing. Built-in dashboarding: Includes Chronograf for creating customizable dashboards and alerts. Data retention policies: Automated data management for optimizing storage and performance. Integration-friendly: Offers various client libraries, APIs, and pre-built integrations with popular tools and platforms. InfluxDB Cloud is ideal for developers, DevOps teams, and organizations looking to store, analyze, and act on time series data without the overhead of managing infrastructure. It’s commonly used for monitoring applications, infrastructure, IoT devices, and real-time analytics scenarios.
  • Pirate Weather

    Pirate Weather is a weather forecasting API service that provides accurate and reliable weather data. It serves as an alternative to the popular Dark Sky API, which was discontinued for new sign-ups after being acquired by Apple. Pirate Weather aims to offer a seamless transition for developers who were using Dark Sky, maintaining a similar API structure and data format. Key features of Pirate Weather include: Forecasts for any location worldwide Current conditions, hourly forecasts, and daily forecasts Historical weather data Various weather parameters such as temperature, precipitation, wind, humidity, and more Support for multiple units (SI, US, etc.) Easy integration with existing Dark Sky-based applications Pirate Weather is designed to be developer-friendly and cost-effective, making it an excellent choice for weather-related applications, websites, and services that require reliable meteorological data.
  • ConvertAPI

    ConvertAPI

    ConvertAPI is a powerful and versatile file conversion service that allows users to convert various file formats quickly and easily. The tool supports over 200 different file formats, including documents, images, videos, and more. ConvertAPI provides a robust API that enables developers to integrate file conversion capabilities into their applications, websites, or workflows. Some key features include: Wide range of supported formats High-quality conversions Batch processing capabilities Cloud-based service accessible from anywhere Secure and reliable file handling Scalable solution for businesses of all sizes ConvertAPI is particularly useful for automating document workflows, enhancing productivity, and streamlining file management processes across various industries and use cases.
  • Pusher

    Pusher

    Pusher is a hosted API for quickly, easily and securely integrating real-time bi-directional functionality via WebSockets to web and mobile apps. It provides developers with a simple way to add real-time features like live chat, notifications, and collaboration tools to their applications without having to manage the infrastructure. Pusher offers SDKs for various programming languages and platforms, making it easy to implement real-time communication in different types of projects. The service is designed to be scalable, handling millions of simultaneous connections, and includes features like presence channels, client events, and webhooks. Pusher is widely used in applications ranging from small startups to large enterprises for enhancing user engagement and providing instant updates.
  • PDFMonkey

    PDFMonkey

    PDFMonkey is a powerful cloud-based PDF generation service that allows users to create, customize, and automate PDF document creation. It provides a user-friendly interface for designing PDF templates and an API for seamless integration with various applications and workflows. PDFMonkey enables businesses to generate professional-looking documents, reports, invoices, and contracts programmatically, saving time and ensuring consistency across all PDF outputs. The service supports dynamic data insertion, complex layouts, and various styling options, making it suitable for a wide range of industries and use cases. With features like cloud storage, version control, and easy collaboration, PDFMonkey streamlines the process of creating and managing PDF documents at scale.
  • Linode

    Linode

    Linode is a cloud computing platform that provides virtual private servers (VPS) and other cloud infrastructure services. Here’s a brief summary: Linode is a popular cloud hosting provider that offers a range of services for developers, businesses, and individuals. Founded in 2003, Linode was one of the first companies to offer cloud computing services. Key features include: Linux-based virtual machines Object storage Kubernetes support Load balancers Managed databases GPU instances for high-performance computing Linode is known for its simplicity, competitive pricing, and developer-friendly approach. It provides a user-friendly interface and robust API, making it easy to deploy and manage cloud infrastructure. With data centers located worldwide, Linode offers low-latency services globally. In 2022, Linode was acquired by Akamai Technologies, further expanding its capabilities and reach in the cloud computing market. Despite the acquisition, Linode continues to operate as a distinct brand, maintaining its focus on providing accessible and powerful cloud solutions for developers and businesses of all sizes.
  • Tisane Labs

    Tisane Labs

    Tisane Labs is a company that specializes in natural language processing (NLP) technologies. Their main product, Tisane, is an advanced NLP API that offers a wide range of language understanding capabilities. Tisane’s technology can perform tasks such as sentiment analysis, content moderation, topic detection, and entity recognition across multiple languages. The API is designed to be flexible and customizable, allowing developers to integrate powerful language processing features into their applications. Tisane Labs focuses on providing accurate and culturally-aware language understanding, making it particularly useful for applications that need to process user-generated content or analyze text data from diverse sources.
  • SimpleHash

    SimpleHash

    SimpleHash is a comprehensive NFT data provider that offers a unified API for accessing NFT metadata, ownership information, and sales data across multiple blockchains. The platform aims to simplify the process of building NFT applications by providing developers with easy access to accurate and up-to-date NFT data. SimpleHash aggregates data from various sources and normalizes it into a consistent format, making it easier for developers to work with NFT information across different chains and marketplaces. The service supports major blockchain networks such as Ethereum, Polygon, Solana, and others. Key features of SimpleHash include: Multi-chain support Normalized metadata Real-time updates Historical data access Powerful search and filtering capabilities SimpleHash is designed to cater to a wide range of use cases, including NFT marketplaces, portfolio tracking apps, analytics platforms, and more. By providing a reliable and easy-to-use API, SimpleHash enables developers to focus on building innovative NFT applications without having to worry about the complexities of data aggregation and normalization across multiple blockchains.
  • Giphy

    Giphy

    Giphy is a popular online platform and search engine for animated GIFs (Graphics Interchange Format) and short video clips. Founded in 2013, Giphy has become one of the largest libraries of animated images on the internet, offering millions of GIFs, stickers, and short-form videos. Giphy allows users to search, share, and create GIFs easily. It integrates with various social media platforms, messaging apps, and content creation tools, making it simple to add animated content to conversations, posts, and presentations. The platform offers both user-generated content and official content from entertainment brands, sports leagues, and celebrities. In addition to its consumer-facing services, Giphy provides APIs and SDKs for developers to integrate GIF functionality into their own applications and websites. The company also offers Giphy for Work, a solution for businesses to create and share branded content. In 2020, Giphy was acquired by Meta (formerly Facebook), further solidifying its position in the social media and digital communication landscape. Despite this acquisition, Giphy continues to operate as a separate entity, maintaining its vast library of animated content and partnerships with various platforms and brands.
  • BunnyCDN

    BunnyCDN

    BunnyCDN is a powerful and cost-effective content delivery network (CDN) service that helps websites and applications deliver their content faster to users around the world. It offers features like global file distribution, edge rules, image optimization, and video streaming. BunnyCDN is known for its simplicity, affordability, and performance. BunnyCDN provides an easy-to-use interface and integrates well with various platforms, making it a popular choice for businesses of all sizes looking to improve their website’s speed and user experience.
  • Harry Potter API

    Harry Potter API

    The Harry Potter API is a free, public API that provides detailed information about characters, spells, and other elements from the Harry Potter universe. This RESTful API allows developers to access a comprehensive database of Harry Potter-related data, making it easier to create applications, websites, or games centered around the magical world created by J.K. Rowling. Key features of the Harry Potter API include: Character information: Retrieve details about various characters, including their name, species, house, wand, patronus, and more. Spell data: Access information about different spells used in the Harry Potter series. House details: Get information about the four Hogwarts houses. No authentication required: The API is open and free to use without the need for API keys. JSON format: All data is returned in easy-to-use JSON format. This API is an excellent resource for Harry Potter enthusiasts, developers, and students looking to practice working with APIs or create Harry Potter-themed projects. It’s important to note that while the API is free to use, it’s not officially associated with Warner Bros. or J.K. Rowling and should be used responsibly and in accordance with fair use practices.
  • Bandwidth

    Bandwidth

    Bandwidth is a cloud communications platform that provides voice, messaging, and emergency services APIs for businesses and developers. The company offers a suite of tools and services that enable organizations to integrate voice calling, text messaging, and 911 access into their applications and products. Bandwidth specializes in: Voice API: Allows developers to add calling capabilities to applications, including features like call control, conferencing, and text-to-speech. Messaging API: Enables businesses to send and receive SMS and MMS messages programmatically. Emergency Services: Provides E911 services and location management for VoIP providers and enterprises. Phone Number Services: Offers phone number provisioning and management across the United States. WebRTC: Supports browser-based real-time communication for voice and video. Bandwidth is known for its reliable network infrastructure, competitive pricing, and developer-friendly APIs. The company serves a wide range of industries, including telecommunications, software, healthcare, and finance, helping businesses to build and scale their communication solutions efficiently.
  • TRIGGERcmd

    TRIGGERcmd

    TRIGGERcmd is a powerful remote command execution platform that allows users to trigger commands on their computers from anywhere. It enables secure remote access and control of devices, making it ideal for automation, remote management, and IoT applications. TRIGGERcmd offers features like custom command creation, scheduling, and integration with various services and devices. It supports multiple operating systems, including Windows, macOS, and Linux, providing a versatile solution for remote command execution and automation tasks.
  • SportsData

    SportsData

    SportsData is a comprehensive sports data API provider offering real-time and historical data for various sports leagues worldwide. The service provides developers with access to a wide range of sports information, including live scores, player statistics, team data, odds, and more. SportsData covers major sports such as NFL, NBA, MLB, NHL, soccer, and many others. Their API is designed to be easily integrated into applications, websites, and analytics platforms, making it a valuable resource for sports-related software development, fantasy sports, and sports betting applications. For more information, visit SportsData.
  • Gatekeeper

    Gatekeeper

    Gatekeeper is a powerful open-source application access management tool designed for macOS. It provides robust security features to protect your Mac from malicious software. Gatekeeper is built into macOS and helps ensure that only trusted software runs on your Mac by verifying that applications are from identified developers and have not been altered. It acts as a first line of defense against potentially harmful applications downloaded from the internet. Gatekeeper uses code signing and notarization to verify the authenticity and integrity of apps before allowing them to run, helping to prevent malware and providing users with greater control over which applications can be installed and executed on their systems.
  • SSLMate — Cert Spotter API

    SSLMate — Cert Spotter API

    SSLMate — Cert Spotter API is a powerful tool for monitoring SSL/TLS certificates across the internet. It provides real-time alerts about new and expiring certificates, helping organizations maintain security and prevent unexpected downtime. The API allows users to programmatically access certificate data, making it easier to integrate certificate monitoring into existing workflows and security systems. SSLMate offers both free and paid tiers, with the paid version providing additional features and higher query limits.
  • Let’s Enhance

    Let’s Enhance

    Let’s Enhance is an AI-powered image enhancement tool that uses advanced machine learning algorithms to upscale and improve image quality. Let’s Enhance offers a range of features including image upscaling, noise reduction, and sharpening. It’s particularly useful for photographers, designers, and anyone looking to improve low-resolution images or prepare visuals for large format printing. The tool can increase image resolution by up to 16x while maintaining quality, correct blur, remove JPEG artifacts, and restore lost details. Let’s Enhance also provides an API for integrating these capabilities into workflows and applications.
  • Hugging Face

    Hugging Face

    Hugging Face is a leading platform and community in the field of artificial intelligence and machine learning. It provides a comprehensive ecosystem for developing, sharing, and deploying state-of-the-art machine learning models, particularly in natural language processing (NLP) and computer vision. Key features of Hugging Face include: Model Hub: A vast repository of pre-trained models that can be easily accessed, fine-tuned, and deployed. Transformers library: An open-source library that simplifies working with transformer-based models. Datasets: A collection of publicly available datasets for training and evaluating models. Spaces: A platform for hosting and sharing machine learning demos and applications. AutoNLP: A tool for automating the process of training custom NLP models. Hugging Face is widely used by researchers, developers, and companies to accelerate AI development and deployment. It has become a central hub for collaboration and innovation in the AI community, fostering open-source contributions and knowledge sharing.
  • Headless Testing

    Headless Testing

    Headless Testing refers to the practice of running automated tests on web applications without a graphical user interface (GUI). This approach allows for faster, more efficient testing by simulating user interactions programmatically rather than through a visible browser window. Headless testing is particularly useful for continuous integration and deployment pipelines, as it can be easily integrated into automated workflows. Headless Testing is commonly used with popular browsers like Chrome, Firefox, and Safari, which offer headless modes for testing purposes. It’s especially beneficial for running tests in resource-constrained environments, such as CI/CD servers or containerized applications. While headless testing sacrifices visual feedback, it compensates with improved speed and reduced resource consumption, making it an essential tool in modern web development and quality assurance processes.
  • Dynatrace API

    Dynatrace API

    The Dynatrace API is a comprehensive set of RESTful interfaces that allow developers and IT professionals to interact programmatically with the Dynatrace software intelligence platform. Dynatrace is a powerful application performance monitoring (APM) and digital experience management solution. The Dynatrace API enables users to: Retrieve monitoring data and metrics Configure and manage Dynatrace environments Automate workflows and integrate with other tools Create custom dashboards and reports Manage problem notifications and alerting Key features of the Dynatrace API include: Environment API: Manage and configure Dynatrace environments Topology and Smartscape API: Access topology model data Metrics API: Query and analyze performance metrics Events API: Push custom events into Dynatrace Problems API: Retrieve and manage problem data Synthetic API: Configure and manage synthetic monitors The API uses REST principles, supports JSON data format, and requires authentication using API tokens. It’s an essential tool for extending Dynatrace’s capabilities and integrating it into broader IT ecosystems and workflows.
  • Gitea

    Gitea

    Gitea is a lightweight, open-source Git service that provides a self-hosted alternative to platforms like GitHub or GitLab. It offers a clean, user-friendly interface for managing Git repositories, issue tracking, and collaborative development. Gitea is designed to be easy to install and run, with low resource requirements, making it suitable for small teams or individual developers who want to host their own Git service. It supports essential features like pull requests, code review, wikis, and integrations with CI/CD pipelines. Gitea is written in Go and can run on various operating systems, providing a fast and efficient Git hosting solution.
  • Imgur

    Imgur

    Imgur is a popular image hosting and sharing platform that allows users to upload, store, and share images and GIFs online. Imgur was founded in 2009 and has since become one of the largest image communities on the internet. Key features of Imgur include: Easy image uploading: Users can quickly upload images from their devices or by URL. Image hosting: Imgur provides free hosting for images, making it easy to share them across the web. Community engagement: The platform has a vibrant community where users can browse, comment on, and vote for images. Meme creation: Imgur offers built-in tools for creating and editing memes. Albums: Users can organize multiple images into albums for easy sharing. API access: Developers can integrate Imgur’s functionality into their own applications. Mobile apps: Imgur offers mobile apps for iOS and Android devices. Imgur is widely used for sharing images on social media platforms, forums, and websites. It’s particularly popular on Reddit, where many users rely on Imgur to host images for their posts. The platform is free to use with basic features, but also offers a premium subscription called Imgur Emerald for additional perks. Overall, Imgur has established itself as a go-to platform for quick and easy image sharing, meme creation, and visual content discovery.
  • Gender API

    Gender API

    Gender API is a powerful tool for determining the gender of a person based on their name. It provides a simple and efficient way to predict gender across various languages and countries. Gender API offers a RESTful API that can be easily integrated into various applications and workflows. The service boasts a large database of names and uses advanced algorithms to provide accurate gender predictions. It’s particularly useful for businesses, researchers, and developers who need to analyze name data or personalize user experiences based on gender. The API supports multiple input formats, including single names, full names, and bulk processing. It also offers additional information such as gender probability and name frequency in different countries. Gender API is known for its high accuracy rates and regular database updates, making it a reliable choice for gender determination tasks.