CircleCI

GitHub

Developer Tools

4.8

GitHub is the world's largest software development platform, hosting over 100 million developers and 330+ million repositories, making it the de facto home for open-source software and collaborative development. Beyond code hosting, GitHub provides a complete development workflow with pull requests for code review, GitHub Actions for CI/CD automation, GitHub Packages for package management, and Codespaces for cloud-based development environments. GitHub Copilot, its AI pair programmer, suggests code in real-time and has fundamentally changed how millions of developers write code. Owned by Microsoft since 2018, GitHub continues to serve as a neutral platform for the developer community while expanding into enterprise DevOps with advanced security scanning, compliance features, and enterprise-grade admin controls.

Vercel (Dev)

Developer Tools

4.7

Vercel provides a world-class developer experience as the creators and maintainers of Next.js, the most popular React framework for production applications. Beyond hosting, Vercel's developer tools include the Vercel CLI for local development, Vercel AI SDK for building AI-powered applications, and v0 — a generative UI tool that creates React components from text descriptions. Vercel's Infrastructure is specifically optimized for server-side rendering, static generation, and incremental static regeneration patterns, delivering sub-second page loads through its global edge network. The company has attracted $563 million in funding and powers the web presence of companies like Loom, HashiCorp, and the Washington Post, cementing its position as the primary infrastructure partner for modern frontend development teams.

Supabase

Developer Tools

4.7

Supabase is an open-source alternative to Firebase that provides a complete backend-as-a-service with a PostgreSQL database, authentication, instant APIs, real-time subscriptions, edge functions, and file storage. Unlike Firebase's proprietary NoSQL database, Supabase uses PostgreSQL — giving developers the full power of SQL, joins, transactions, and the massive PostgreSQL extension ecosystem. Its auto-generated REST and GraphQL APIs mean you get a fully functional backend API the moment you create a database table, with row-level security policies for fine-grained access control. Supabase has experienced explosive growth in the developer community, reaching 70,000+ GitHub stars and powering applications for hundreds of thousands of developers who want Firebase's developer experience with the reliability and flexibility of PostgreSQL.

Docker

Developer Tools

4.6

Docker is the industry-standard platform for building, shipping, and running applications in containers — lightweight, portable packages that include everything an application needs to run consistently across any environment. Docker Hub hosts over 100,000 container images and serves over 13 billion image pulls per month, making it the world's largest container registry and a fundamental piece of modern software infrastructure. Docker Desktop provides a local development environment with Kubernetes support, volume management, and extensions marketplace, while Docker Scout scans images for vulnerabilities and provides remediation guidance. Docker has fundamentally changed how software is developed and deployed, with containerization becoming the standard approach for microservices architecture, cloud-native development, and DevOps practices across the industry.

Sentry

Developer Tools

4.6

Sentry is the leading application monitoring and error tracking platform, used by over 4 million developers to identify, debug, and resolve software errors in real-time before they impact users. When an error occurs, Sentry captures the full stack trace, breadcrumbs (user actions leading to the error), device information, and environment context, giving developers everything they need to reproduce and fix issues quickly. Sentry's performance monitoring tracks transaction durations, identifies slow database queries and API calls, and correlates performance issues with specific code deployments. Supporting over 100 programming languages and frameworks including React, Python, Java, Go, Ruby, and mobile platforms, Sentry provides a unified error and performance monitoring experience across your entire technology stack.

Postman

Developer Tools

4.6

Postman is the world's most popular API development and testing platform, used by over 30 million developers and 500,000 organizations to design, build, test, and document APIs. Its intuitive interface makes sending API requests as easy as filling out a form, while its advanced features support complex testing scenarios with pre-request scripts, test assertions, and environment variables for managing different deployment stages. Postman Flows provides a visual API workflow builder, Mock Servers enable frontend development before backends are ready, and Monitors run automated API tests on a schedule to catch breaking changes. The platform's API documentation feature automatically generates beautiful, interactive docs from your Postman collections, and its collaboration workspaces let teams share and version-control their API definitions together.