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A local Markdown editor for people who want rich text and source files in their own folders.

Free offline expense tracking with recurring entries and category budgets

A desktop note environment for Markdown, source files, mind maps, PDFs, and other formats.

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

Offline strength logging with local records and an automatic rest timer

An open platform for listening history and recommendations

An open-source catalogue of browser games and small tools

Free courses and study resources from The Open University.

Open-source global-illumination rendering for animation and VFX

Use a vendor-neutral API specification to evaluate feature flags through compatible SDKs and providers.

Write programmable configuration with validation and generate JSON, YAML, and other output formats.

A browser-based font editor for hobbyists and beginners.

Add backgrounds, device frames and export-ready screenshot dimensions.

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

Self-hosted newsletters with SQL segments and configurable SMTP queues

An open-source Android companion for supported watches, bands and other devices

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

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

Scholarly and multiscript fonts with detailed character and licensing choices.

Manage and secure REST, GraphQL, gRPC, and event APIs with cloud, hybrid, or self-managed gateways.

Turn a concise text description into a customizable diagram with the D2 language.

Desktop account records with budget estimates and separate financial years

An open-source manager for personal Audible audiobooks

Build apps with Gemini, Imagen, Veo, and Gemma models using Google AI tools.