Visual Studio Code194.7k
Free cross-platform code editor with a large extension ecosystem.
promptfoo/promptfoo
CLI for testing prompts and agents and red teaming LLM apps for vulnerabilities. It has 26,882 stars on GitHub and ranks #72 in Developer Tools.
GitHub description: Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
Free cross-platform code editor with a large extension ecosystem.
Microsoft's modern tabbed terminal for Windows that runs PowerShell, Command Prompt and WSL in one window.
Extensible modal text editor forked from Vim, with a built-in terminal, Lua scripting and async plugin support.
High-performance code editor written in Rust with built-in multiplayer support for real-time collaboration.
Workshop for developing, testing and documenting UI components in isolation.
Interactive command-line fuzzy finder for files, shell history, processes and any other list of lines.
Simple terminal UI for git that lets you stage, commit, rebase and browse branches with keyboard shortcuts.
Open source API client that runs in the browser and can be self hosted.
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