Visualize any GitHub codebase: free interactive architecture diagrams and one-minute explainer videos. Replace 'hub' with 'diagram' in any GitHub URL.
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开源白板工具（SaaS），一体化白板，包含思维导图、流程图、自由画等。All in one open-source whiteboard tool with mind, flowchart, freehand and etc.
- collaboration
- drawing
- flowchart
- localfirst
Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.
Free, open-source book search, reader and library.
Freeter – a smarter way to work on your computer
- productivity
- software
- app
- linux
A free office suite where your document is inside the link and easy to share. There's no account and nothing saved unless you choose.
Powerful note-taking app with nested documents, full-text search, rich-text editor, code snippet editor and more
A local-first study platform for university lectures: PowerPoint slides, spaced repetition, exams, and an optional AI tutor on the Gemini free tier.
AI writing assistance. Free & open source. Offline English and German grammar checks, with rewrites and translation through your own AI.
- chrome-extension
- grammar-checker
- writing-assistant
Real-time synced lyrics for Spotify & Apple Music in your macOS menu bar. Word-by-word karaoke highlighting, lyrics translation into 43 languages with RTL support, artist metadata and album art. Free, open source, private — no account needed.