Build Shorts, Reels, and TikTok-ready vertical videos with word-by-word animated captions, safe-zone controls for on-screen UI, and frame-accurate export — right in your browser.
Start Your Free 3-Day TrialDrop in your vertical or landscape source video.
Rich text, custom colors, and safe-zone controls so nothing sits under platform UI.
Deterministic export means the timing you see is the timing you get, no drift.
Beat-synced kinetic text, not a static subtitle bar.
Keep text clear of like/comment icons and platform UI overlap.
No MediaRecorder duration drift — what you preview is what exports.
Most browser-based video tools drift on export. A clip that looked perfectly synced in preview often comes out with the captions half a second off after export — a known issue with how browsers record video in real time. This uses a deterministic frame-by-frame export specifically to avoid that.
Safe-zone awareness isn't cosmetic. Text placed where TikTok or Reels puts its own UI gets covered the moment someone actually opens the app — the safe-zone guides exist so that doesn't happen after you've already exported.
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