Biome
Biome project · Testing & QA
Rust-based formatter and linter for JavaScript, TypeScript, JSX, JSON, CSS and GraphQL that replaces Prettier and ESLint with one binary
53 tools
Biome project · Testing & QA
Rust-based formatter and linter for JavaScript, TypeScript, JSX, JSON, CSS and GraphQL that replaces Prettier and ESLint with one binary
Bruno Software · API development & tooling
Open-source, offline-first API client that stores collections as plain-text .bru files in a Git repository, with a CLI for running requests in CI
Oven · Programming languages & runtimes
All-in-one JavaScript and TypeScript runtime, package manager, bundler and test runner built on JavaScriptCore by Oven
Anysphere · Coding agents & AI IDEs
AI-native code editor from Anysphere, forked from VS Code, with inline edits, codebase-aware chat and agent mode that can run multi-step changes
Cypress.io · Testing & QA
End-to-end and component testing framework that runs tests inside the browser with an interactive runner, paired with the commercial Cypress Cloud
Observable, Inc. · Data visualization
Modular JavaScript library for bespoke, data-driven web graphics: scales, axes, shapes, layouts, geo projections, transitions and DOM selections
Deno Land · Programming languages & runtimes
Secure-by-default JavaScript and TypeScript runtime from Deno Land with web-standard APIs, built-in tooling and an optional hosted Deploy service
Meta Open Source / React team · Documentation tooling
React-based static site generator from Meta for documentation sites with MDX content, versioning, localization and a plugin architecture
Drizzle Team · Web frameworks & UI
TypeScript ORM with SQL-like query builder, schema defined in code, migrations through Drizzle Kit, and support for PostgreSQL, MySQL and SQLite drivers
OpenJS Foundation · Testing & QA
Pluggable static analysis tool for JavaScript and TypeScript that finds problems in code through configurable rules and can fix many automatically
OpenJS Foundation · Web frameworks & UI
Minimal, unopinionated web framework for Node.js with routing and middleware, the long-standing default for HTTP servers in the Node ecosystem
Forgejo project (Codeberg e.V.) · Version control & code hosting
Community-governed self-hosted Git forge forked from Gitea, stewarded by Codeberg e.V., with pull requests, issues, packages and Forgejo Actions
Ghostty project (Mitchell Hashimoto) · Terminals & shells
Native, GPU-accelerated terminal emulator for macOS and Linux written in Zig, with platform-native UI and a cross-platform core library
GitHub (Microsoft) · CI/CD & build automation
GitHub's CI/CD and automation service that runs YAML-defined workflows on hosted or self-hosted runners in response to repository events
GitLab Inc. · Version control & code hosting
Open-core DevSecOps platform combining Git hosting, merge requests, integrated CI/CD pipelines, registry and security scanning, available as SaaS or self-managed
GNU Project (Ole Tange) · Distributed & parallel computing
Shell tool that runs commands in parallel over input lines on one or several machines, as a drop-in alternative to xargs and shell loops
Google (Chrome DevTools team) · Programming languages & runtimes
Statically typed, garbage-collected language from Google that compiles to single binaries and is widely used for servers, CLIs and infrastructure tooling
Hono project (Yusuke Wada and contributors) · Web frameworks & UI
Small TypeScript web framework built on Web Standard APIs that runs unchanged on Cloudflare Workers, Deno, Bun, Node.js and other JavaScript runtimes
Hoppscotch · API development & tooling
Open-source API client that runs in the browser or as a desktop app, supports REST, GraphQL and realtime protocols, and can be self-hosted for teams
George Nachman (iTerm2 project) · Terminals & shells
Feature-rich terminal emulator for macOS with split panes, profiles, triggers, search, tmux integration and a Python scripting API
OpenJS Foundation · Testing & QA
JavaScript testing framework created at Meta with built-in assertions, mocking, snapshot testing and parallel test execution
The Julia Project · Programming languages & runtimes
Dynamically typed, JIT-compiled language for numerical and scientific computing that aims to combine high-level syntax with compiled-code speed
Volodymyr Agafonkin and contributors · GIS & mapping
Lightweight open-source JavaScript library for interactive tile-based web maps with markers, vector layers and a large plugin ecosystem
Lean FRO · Mathematical & statistical computing
Open-source functional programming language and interactive theorem prover with dependent types, the Mathlib mathematics library and VS Code tooling, stewarded by the Lean FRO
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