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An open-source academic notebook that brings Markdown notes, PDF annotations, and literature management together.

Free offline expense tracking with recurring entries and category budgets

A local-workspace knowledge manager for Markdown, mind maps, diagrams, and other files.

One place to chat with many AI models and use free AI tools.

Serverless hosting for open language models through one API key.

Headless, open source editor framework with paid add-ons for AI, collaboration and document conversion.

Open download statistics through a podcast prefix

A browser-based font editor for hobbyists and beginners.

Build measured colour profiles with a documented command-line toolkit.

Run a lightweight flat-file wiki without configuring a database.

Self-hosted newsletters with SQL segments and configurable SMTP queues

Open source platform for building and deploying durable AI agents and workflows in TypeScript.

Realtime voice, video, and AI APIs for developers

Web data API to search, scrape and interact with the web for AI agents

Scholarly and multiscript fonts with detailed character and licensing choices.

Vector search engine for AI retrieval, with open-source and managed cloud options.

AI developer platform with Opik for LLM observability, evaluation, and agent debugging.

Desktop app to run and train AI models locally on your own hardware.

A free Android activity log with route maps, pace charts and no ads

Open-source platform to build AI agents, workflows and apps with your data

Free courses and study resources from The Open University.

IBM’s open-source components, patterns and design guidance

A Stability AI Lab releasing open-source generative audio tools for music production.

Open-source HR software with self-hosted and managed deployment options