Companies in the category 'Developer Tools'

Anomaly, short for Anomaly Innovations Inc., is a software company that builds open-source developer tools. Anomaly is the provider of the open source AI coding agent OpenCode.

Supabase is an open-source Firebase alternative that provides a dedicated Postgres database, authentication, instant APIs, edge functions, real-time subscriptions, storage, and vector embeddings.

Coder provides a platform for self-hosted, secure, and scalable cloud development environments. It enables developers and platform teams to build faster, standardize smarter, and maintain control over their development infrastructure.

Warp is an agentic development environment built around a modern, Rust-based terminal. Originally launched as an AI-powered terminal for macOS, Warp has evolved into a full platform for agentic software development, combining a GPU-accelerated terminal with built-in AI coding agents, cloud agent orchestration via its Oz platform, and collaborative workflow tools. On April 28, 2026, Warp open-sourced its client under the AGPL-3.0 license, with OpenAI as the founding sponsor of the open-source repository.

Shuttle is an open-source cloud development platform that lets developers build and deploy Rust backends without writing any infrastructure configuration files. Infrastructure is defined directly from code function signatures and annotations, enabling zero-config deployments to AWS-backed cloud infrastructure in seconds.

Swark is a free and open source VS Code extension that automatically generates architecture diagrams from codebases using large language models (LLMs). It integrates directly with GitHub Copilot, requires no API keys or additional authentication, and outputs diagrams in Mermaid.js format.

Protoqol is a custom software development studio based in Arnhem, Netherlands, specializing in scalable, secure, and maintainable web applications and technical consulting. The company also develops and maintains several open source tools for the PHP and Laravel ecosystem, including Prequel, a browser-based database management GUI for Laravel, and Quasi, a Laravel API resource generator. Protoqol additionally offers CHKS, a proprietary SaaS platform for checklist and compliance management.

Chromatic is a visual testing and UI review platform built by the core maintainers of Storybook. It automates gathering UI feedback, visual testing, and documentation for Storybook, Playwright, and Cypress workflows, enabling frontend development teams to catch visual, interaction, and accessibility issues before they ship. The platform scans every possible UI state across multiple browsers, facilitates team collaboration through streamlined feedback and sign-off processes, and integrates with existing development workflows.

Beanbag is a software development tools company best known for Review Board, an open source web-based code and document review platform used by thousands of companies and open source projects worldwide. In addition to the self-hosted Review Board, Beanbag offers RBCommons, a hosted version of the platform, and Power Pack, a commercial add-on that extends Review Board with enterprise features such as document review and reporting. The company also maintains a broad portfolio of open source Python and JavaScript libraries.

Flox is a developer environment platform built on Nix that enables teams to create portable, reproducible environments spanning the entire software development lifecycle. It provides a unified toolchain for building, packaging, and managing software dependencies across operating systems and architectures.

HTTP Toolkit provides open-source tools for intercepting, debugging, and testing HTTP(S) traffic on Windows, Linux, and Mac. Its core product is a cross-platform desktop application that enables developers to inspect, rewrite, and mock HTTP requests and responses from browsers, mobile devices, backend services, and more.

Cachix provides Nix binary cache hosting that allows development teams to share build artifacts between CI, development, and deployment environments, eliminating redundant builds. The company also develops devenv, an open-source tool for creating fast, declarative, and reproducible developer environments using Nix.

Imgbot is a GitHub app that automatically compresses images in repositories using lossless optimization techniques, reducing file sizes without sacrificing quality or dimensions. It integrates directly with GitHub, scanning repositories for image files and opening pull requests with the optimized versions, supporting both public and private repositories.

Invertase is a UK-based company that builds open-source developer tools, SDKs, and libraries to help technology companies deliver exceptional developer experiences. The company is best known for React Native Firebase, the official React Native implementation of Firebase, and Melos, a tool for managing Dart and Flutter monorepo projects. Invertase also offers SDK development, SDK maintenance, and cross-platform development services to enterprise clients including Google, Amazon, and Canonical.

Fiberplane is a developer tools company building the control plane for software work in the age of AI agents. Originally founded as a collaborative notebook platform for DevOps incident response, Fiberplane has pivoted to building agent-native developer tooling. Its current flagship product is fp, a local-first, CLI-based issue tracker designed for use with AI coding agents such as Claude Code. The fp tool stores issues locally, provides structured context across sessions, and includes a Mac desktop app and extension system. Fiberplane also offers Drift, a spec-to-code drift detection tool, and RV, an AI-powered code review tool. The company previously built the Fiberplane API Developer Portal, a middleware-based observability and documentation layer for Hono APIs running on Cloudflare Workers.