Timeline Studio lets creators and AI agents share an editable timeline

Timeline Studio is an open-source, local-first video editor that lets creators and AI agents work on the same multi-track timeline. Its browser-based workspace supports clip editing, picture-in-picture overlays, keyframes, color grading, captions and independent audio tracks. Supported AI workflows run locally without uploading project media to an editing backend, with models downloaded when needed and cached for reuse.

AI capabilities include multilingual voiceovers, music generation, automatic captions, subject detection, background removal, watermark and object removal, video restoration, vocal separation and talking-avatar generation. Export uses a separate deterministic offline rendering path, with browser encoding and a fallback recording option.

An editing skill supports Codex, Claude Code, Copilot and Gemini CLI. Agents can inspect media, validate plans, apply supported changes transactionally and verify exports while retaining the editable project as the source of truth. A headless command runner supports portable projects, while browser controls cover operations not yet available through its command registry.

The Anna edition adds cloud project continuity and assistance based on editing briefs and clip metadata. Its desktop preview does not analyze video frames or audio, and local AI availability depends on the Anna container. Original source code uses the MIT License, but third-party models and assets retain their own licensing terms.