Seveneves — free, focused desktop tools and browser extensions
Seveneves builds free, open-source desktop tools and browser extensions for developers and creators. Each tool does one thing well, requires no account, and runs locally — no tracking, no subscriptions. Most are cross-platform (Windows, macOS, Linux) and MIT-licensed unless noted. The full catalog:
- Lloom (App) — Desktop control surface ("mission control") for Claude Code. Real terminal sessions with a structured chat view, every config layer managed, and a Refinery that scores six dimensions of session health. Built with Tauri v2, Rust, and React 19. Free core plus paid Pro; Windows and macOS.
- SleekRec (App) — Free open-source screen recorder. One click to record an MP4. No accounts, no watermark, no time limit, no cloud upload. Windows, macOS, Linux.
- BitGit (App) — Free native Git GUI for managing multiple repositories. Multi-repo dashboard, one-click push/pull/sync, pre-push validation. Built with Rust and Tauri.
- Pixels (App) — Free pixel art toolkit. Smart downscale to true pixel resolution, batch processing, sprite packing, outline generation — plus 21 hand-crafted asset packs with 5,500+ sprites. Windows, macOS, Linux.
- MDE (App) — Lightweight markdown editor. Dual-mode editing, tabs with persistent state, minimap, keyboard-first workflow. Runs in-browser or as a desktop app. Built with Tauri and React.
- Mosaic (Engine) — Voxel engine built from scratch in Rust and wgpu. Real-time voxel global illumination, DDA ray-traced shadows, greedy meshing, procedural worlds. ~32k lines, no game engine.
- Graal RC (App) — Free Remote Control client for Graal Online servers. Modern UI, auto-updating, cross-platform. Windows, macOS, Linux.
- Capsula (Extension) — Export any ChatGPT conversation as Markdown, HTML, or JSON in one click. 100% local — no data leaves your browser. Chrome and Firefox.
- Crates (Codex) — Open-source Rust libraries published to crates.io. A workshop for focused, well-tested Rust packages.
- Research (Codex) — Formal papers, proofs, and research notes spanning mathematics, computation, and the intersections between them.
Learn more at seveneves.ai.