Cetus is a self-contained HTML-to-video renderer. Write HTML with CSS animations, GSAP, Three.js, or WebGL — Cetus captures every frame with bundled headless Chrome and pipes it through bundled ffmpeg. No Node.js, npm, system Chrome, or ffmpeg needed. One binary. Same HTML produces identical video on any machine, every time. Ships with a Build with AI page to generate ready-to-render compositions via Claude, ChatGPT, or any AI agent.

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Hey PH 👋 — I'm Shub, founder of Cenvero. Cetus started from a simple frustration: every HTML-to-video tool I tried fell apart the moment the environment changed. Different machine, different output. Missing ffmpeg, broken Node version, wrong Chrome — something always broke. So I built Cetus to embed everything. Bundled Chrome. Bundled ffmpeg. One binary. curl | sh and it works. Same HTML file, same video, anywhere. A few things I'm especially proud of: – Parallel frame capture (--concurrency N) for fast renders – Resumable renders — crash at frame 1600 of 2000, --resume picks up exactly there – Portable frame dirs via config.cetus manifest — capture on one machine, encode on another – Full audio pipeline (--audio, --audio-fade-in/out, --audio-loop, etc.) – cetus preview — live dev server so you iterate without re-rendering – JSON progress output for CI pipelines – Go API (pkg/cetus) to embed rendering directly in your app It's early — rough edges exist. If anything breaks, please open an issue. Every report directly shapes what gets fixed next. If this solves a problem for you, a ⭐ on GitHub means a lot. GitHub: https://github.com/cenvero/cetus Docs: https://cetus.cenvero.org/docs/

Been building this quietly for a while. Shipping it today.

Cetus is an HTML-to-video renderer write HTML with CSS animations, GSAP, Three.js, WebGL, whatever. Cetus captures every frame with a bundled headless Chrome and pipes it through bundled ffmpeg. One binary, fully self-contained.

GitHub: https://github.com/cenvero/cetus

Site: https://cetus.cenvero.org/