Audio & video / Local FFmpeg tool
Turn a short video into an animated GIF with chosen frame rate and width.
The first run loads an approximately 31 MB FFmpeg WebAssembly core from this site. It does not use a CDN or upload your files.
Files are limited to 200 MB total and 20 minutes; mobile devices use an 80 MB limit. Reverse, GIF and boomerang tools have lower duration caps.
At most 60 download files are generated.
Validated downloads will appear here after processing.
Turn a short video into an animated GIF with chosen frame rate and width.
Video file: sample-1.mp4
Frames per second = 10
Output width = 640pxCreates a probed and validated .gif (image/gif). Actual method: GIF has a limited palette and no audio; reducing width or frame rate sharply reduces size. Output boundary: The generated GIF is capped at 20 seconds and contains no audio.
Choose Video file sample-1.mp4 and first confirm that each required video stream exists.
Use Frames per second = 10; Output width = 640px. The actual FFmpeg rule is: GIF has a limited palette and no audio; reducing width or frame rate sharply reduces size.
A download appears only after duration, stream type and .gif container validation. Also check this boundary: The generated GIF is capped at 20 seconds and contains no audio.
Local AI / Speech to text
Open-source Whisper Tiny runs in your browser. The file, audio and result are never uploaded.
Choose an audio or video file in the workbench above first.
◎ The model loads only from 321Kit; MiniMax is not called and no transcript history is stored.
How it works
GIF has a limited palette and no audio; reducing width or frame rate sharply reduces size.
GIF has a limited palette and no audio; reducing width or frame rate sharply reduces size. Processing uses single-thread FFmpeg.wasm. The page does not upload, store or inspect file content outside this device. Cancel, error and page close terminate the worker and revoke temporary object URLs.
The generated GIF is capped at 20 seconds and contains no audio. Files are limited to 200 MB total and 20 minutes; mobile devices use an 80 MB limit. Reverse, GIF and boomerang tools have lower duration caps.
Anonymous feedback
Found a problem or an idea to make this tool better? Tell us. We review every report and start working on actionable improvements within 2 days, continuously improving reliability and usability.