Show HN: Virtual time engine to record HTML to 60fps MP4, no drops
7 hours ago
- Create HTML, CSS, and JS animations with instant export as MP4 or WebM.
- 100% client-side via WebCodecs API; no uploads, sign-up, or watermarks.
- Virtual Time engine freezes and steps browser time frame-by-frame for captures.
- Export supports WebM (VP9) and MP4 (H.264) with resolutions up to 4K and 60fps.
- Works on Chrome 94+, Edge 94+, and Brave desktop for recording; editor works on all modern browsers.
- Free, unlimited recording with no watermarks or limits.
- Virtual Time ensures smooth frame rendering regardless of machine speed.
- Supports external resources via @import and <script src> for libraries like Three.js, GSAP.