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MIT-licensed speech-to-text inference library by CJ Pais, built out of the cross-platform headaches of shipping his Handy dictation app. It runs on the ggml runtime as a near drop-in replacement for whisper.cpp but widens support to 16+ model families through GGUF, adds GPU acceleration on Metal, Vulkan and CUDA with a CPU fallback, and ships official bindings for Python, JavaScript, Rust and Swift so you can embed it rather than shell out to a binary. Free and open source. 962 stars
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Apache-2.0 terminal coding agent from xAI, written in Rust. A full-screen TUI that reads a codebase, edits files, runs shell commands and manages long-running tasks, plus headless scripting for CI and an Agent Client Protocol bridge so editors can drive it. Open source to read and run, though the repo notes that external contributions aren't accepted, so development stays in-house. 20.3k stars
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Apache-2.0 Go tool that hands a coding agent its own throwaway Linux VM instead of your laptop. It boots lightweight micro-VMs through macOS's Virtualization.framework or firecracker on Linux, mounts your project inside, and lets the agent run with full autonomy behind a network allow-list and a filesystem boundary, so you can destroy and recreate the machine without losing your code or the agent's conversation. Runs locally, free, no cloud. 743 stars
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MIT-licensed compression codec in C++ that targets one thing above all else, decompression speed. The author benchmarks it at 1.5 to 3 times faster than LZ4 to decode while landing better ratios, 5,363 MB/s against LZ4's 2,510 on an x86 laptop and 12,537 against 5,311 on an Apple M3, putting it on the pareto frontier for throughput versus ratio on the Silesia corpus. Free and open source. 134 stars
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MIT-licensed TypeScript library that turns semantic HTML into a native, editable Word document, real OOXML with paragraphs, lists, tables and images rather than a screenshot pasted into a .docx. It ships a browser bundle that runs entirely client-side with no Playwright dependency, plus an optional server mode that uses Playwright only to resolve computed styles. Free and open source. 433 stars
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MIT-licensed native macOS harness that runs AI agents entirely on-device with no cloud round-trip. Agents can read your Calendar, Contacts, iMessage and local files, each action gated behind an approval prompt, driven by local models or your own API key for a frontier model when you want one. Made by Terence Pae and billed as permanently free, with any bring-your-own-key API costs falling to you. 7.3k stars
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MIT-licensed open-source alternative to Ahrefs and Semrush, covering keyword research, competitor and backlink analysis, and site audits, with an MCP integration so an AI agent pulls real metrics instead of guessing. The hosted plan starts at $10/mo against the $100-plus the incumbents charge; self-hosting is free but you bring your own DataForSEO account and pay that provider per API call, from a $50 credit. Built by the Every group. 5.2k stars
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Self-hosted remote-desktop and peer-to-peer tool in Go from USBridge Technologies, pitched as a free RustDesk or AnyDesk alternative with Moonlight integration and native Wayland support. It is the software-only slice of a wider USBridge product line and is funded through Patreon. Worth knowing before you build on it, despite the 'open-sourced' announcement the repository ships with no license file at all, which legally makes it all-rights-reserved rather than OSI open source as of mid-July 2026. 360 stars
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Native iOS control center for a self-hosted stack, from Lewis Egley. Browse, request, download and monitor across more than 41 services, Radarr, Sonarr, Docker, DNS blockers and the rest, as a pure client with no backend of its own to run. Closed-source and free to download, with a Quartermaster Pro unlock at £14.99 one-time or £3.99/mo, and no public repo to inspect.
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GPL-3.0 self-hosted karaoke built from your own music library. Local ML splits each track into vocals and instrumental, transcribes the lyrics down to the word, and scores your pitch in real time, all from a single binary with nothing sent to the cloud. Made by rzru and funded through Patreon and Ko-fi. 1.3k stars
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Apache-2.0 self-hosted tool that automates backups and on-demand restores across multiple database types through a web UI and a set of Portabase agents. The v1.24 release redesigns the dashboard around KPIs, adds telemetry, and makes data deletions safer. Run by a self-described non-profit, free with no paid or cloud tier, and a Buy Me a Coffee button for support. 1.4k stars
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AGPL-3.0 offline-first notes app for mobile and web, self-hostable, keeping notes in local storage with device-to-device sync and a focus on speed and privacy. The v0.14.0 release adds direct import from Google Keep, so you can pull an existing archive across in one step. Made by ZhFahim, free, supported through Buy Me a Coffee. 1.1k stars