draw.io
Secure, open-source diagramming tool with offline and online support
Built with:
JavaScript 
CSS 
HTML 
GitHub 
NodeJS 
Github Actions 
Bash 
npm 
Cloudflare Similar Tools
Affine
Open-source alternative to Miro, Notion, and OneNote — Open-source local-first knowledge base with docs, whiteboards, and AI
Anthias
Open-source alternative to OptiSigns, Screenly, and Yodeck — Open-source digital signage software for Raspberry Pi and old PCs
Audacity
Open-source alternative to Ableton Live, Adobe Audition, and Logic Pro — Open-source audio editor for recording, mixing, and enhancing sound
BookWyrm
Open-source alternative to Goodreads and Literal — Federated social reading platform for tracking books and reviews
Builder
Open-source alternative to Webflow, Wix, and WordPress — Drag-and-drop interface for headless CMS and digital experiences
Cap
Open-source alternative to CleanShot, Loom, and Screen Studio — Open-source screen recorder with editing and sharing for macOS and
Chalk.ist
Create customizable, beautiful images of source code for sharing
Changes.Page
Open-source alternative to Canny, Nolt, and ProductBoard — Automate changelog generation from Git commits for clear documentation
ClassroomIO
Open-source alternative to Coursera, Skool, and Udemy — Open-source LMS for companies creating and delivering training courses
Comma
Open-source alternative to Carrd, Substack, and WordPress — Open-source site builder for personal websites with analytics
