Is Boomerang loop free? Is there a watermark?

Yes — Boomerang loop is free to use with no sign-up or watermark. Very large files can still be limited by your browser's available memory and processing resources.

Do my files get uploaded to a server?

No. Boomerang loop runs entirely in your browser with WebAssembly, so your MP4, MOV, WebM, MKV file never leaves your device and nothing is stored or seen by us.

What can I put in, and what do I get out?

Boomerang loop accepts MP4, MOV, WebM, MKV and gives you back a MP4 file. Actual codec support depends on what the bundled engine or browser decoder can read.

Does Boomerang loop change my original file?

No. It never touches your original — Boomerang loop creates a brand-new MP4 file to download and leaves the source on your device untouched.

Free tools · Edit

Boomerang loop

Turn a short clip into a boomerang — it plays forward then reverses, the seamless back-and-forth loop made popular by Instagram. Runs in your browser. (Audio is removed.)

Runs entirely in your browser. Your file is never uploaded — no watermark, no account.

Drop a file or click to chooseMP4, MOV, WebM, MKV

Get a better result

Best for: Short gestures, reveals, or physical movements whose first and last poses can connect naturally in a forward-and-backward loop.
Input → output: The source video is followed by its reversed frames and encoded as one silent H.264/yuv420p MP4. Output duration is roughly doubled.
Quality tip: Trim tightly around a single action and preview the turnaround point. A still or near-still endpoint usually hides the direction change better.
Know before running: Audio is removed, and reversing buffers frames in browser memory. Long or high-resolution inputs can be expensive, while unrelated endpoints create an obvious visual jerk.
Next step: MP4 to GIF when the completed gesture needs a silent looping image.

How to use Boomerang loop

1
Choose your file. Drop a supported MP4, MOV, WebM, MKV file into the tool, or click to select one. It stays on your device — nothing is uploaded.
2
Run locally. Press Run to begin. The first processing run loads the browser engine before local processing begins.
3
Download. Review the result, then download the finished file from your browser with no watermark.

Frequently asked questions

Is Boomerang loop free? Is there a watermark?: Yes — Boomerang loop is free to use with no sign-up or watermark. Very large files can still be limited by your browser's available memory and processing resources.
Do my files get uploaded to a server?: No. Boomerang loop runs entirely in your browser with WebAssembly, so your MP4, MOV, WebM, MKV file never leaves your device and nothing is stored or seen by us.
What can I put in, and what do I get out?: Boomerang loop accepts MP4, MOV, WebM, MKV and gives you back a MP4 file. Actual codec support depends on what the bundled engine or browser decoder can read.
Does Boomerang loop change my original file?: No. It never touches your original — Boomerang loop creates a brand-new MP4 file to download and leaves the source on your device untouched.