This tool is part of the Pro suite. Free users can preview but cannot export.
Subscription tier limits
Up to 953.7 MB
Batch: 1 file
Upgrade required
Up to 9.31 GB
Batch: 5 files
Up to 93.13 GB (streamed)
Batch: 50 files
Hardware-accelerated via WebCodecs / WebGPU on supported browsers (Chrome, Edge, Safari 17+).
Drop your widescreen video
Pick output ratio (9:16, 1:1, 4:5)
JAD crops with motion-aware centring and re-encodes via hardware
0 bytes uploaded. Auto-Reframe (16:9 → 9:16 / 1:1) runs entirely in your browser using WebCodecs, WebGPU, and FFmpeg.wasm. Pro + Media uses chunked streaming via the File System Access API — your video is never buffered to RAM in full and never leaves your machine.
JAD samples motion every keyframe and biases the crop window towards the most active region. For static shots it centres horizontally.
Letterboxing wastes screen real estate on social platforms. Smart-crop fills the frame and is what every modern editor (CapCut, Adobe Premiere) does by default.
Hard-burn captions into the video frame so they show on every player — TikTok, Instagram, X, and Reels. Style fonts, position, and colour locally.
Open toolConvert between MP4, MOV, MKV, WebM, AVI, M4V, TS, and ProRes locally. Hardware-accelerated H.264/H.265/AV1 when available.
Open tool