Observed arrival · 2026-10-28
Tweenshot: a frame-by-frame bench for browser animation
A free Chromium extension captures webpage animations frame by frame, so you can inspect motion, flag a problem frame, and export a Markdown spec.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Web designers and developers debugging animations
- Worth noticing
- The extension requests activeTab rather than host permissions; the page reports zero network requests and keeps captures in IndexedDB.
Field notes
Capture controls are exposed directly in the page demo: choose hover, focus, or click, then step through numbered frames, inspect per-frame values, flag one, and copy a Markdown spec. The extension says it handles CSS transitions, Web Animations, and GSAP by pausing and stepping them; other motion is recorded live. Exports include PNG, GIF, WebM, Markdown, and JSON, with captures stored in IndexedDB.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue