Why does it only work on short videos?

ffmpeg's reverse filter buffers every frame in memory before writing them back in reverse, so long / high-resolution clips can hit the browser's memory cap and crash. Start with clips ≤ 30 seconds.

How do I skip audio reversal?

Enable 'Drop audio, reverse video only'. This passes `-an` to ffmpeg so the audio track is removed. Handy when reversed music is unpleasant or when you want to save memory.

What's the output format?

MP4 (H.264 + AAC, or silent MP4 when audio is dropped). For other formats, run the result through the video-convert tool.

I just want to reverse the audio.

Use the audio-reverse tool. It runs entirely in the Web Audio API and exports WAV or MP3.

Is anything uploaded?

No. ffmpeg.wasm runs in the browser via WebAssembly — your video stays local.

Back to Video

Video reverse — play backwards and export

Reverse a video entirely in the browser and export as MP4. ffmpeg.wasm's reverse and areverse filters flip both the video and audio. Great for TikTok / Reels trends, prank clips, magic-reveal effects, or sample creation. Option to drop audio and reverse only the visual track. Your video stays in the browser — nothing is uploaded.

videoreverse

How to use

Drop or pick a single video (MP4 / MOV / WebM / MKV, etc.). Choose whether to reverse audio too, or to drop audio entirely and reverse just the video. Click Reverse. ffmpeg.wasm applies the reverse and areverse filters. The engine (~30 MB) is downloaded only on first run. Preview the result, then save it with Download. Output is MP4 (H.264 + AAC, or silent MP4 when audio is dropped).

FAQ

Why does it only work on short videos?: ffmpeg's reverse filter buffers every frame in memory before writing them back in reverse, so long / high-resolution clips can hit the browser's memory cap and crash. Start with clips ≤ 30 seconds.
How do I skip audio reversal?: Enable 'Drop audio, reverse video only'. This passes `-an` to ffmpeg so the audio track is removed. Handy when reversed music is unpleasant or when you want to save memory.
What's the output format?: MP4 (H.264 + AAC, or silent MP4 when audio is dropped). For other formats, run the result through the video-convert tool.
I just want to reverse the audio.: Use the audio-reverse tool. It runs entirely in the Web Audio API and exports WAV or MP3.
Is anything uploaded?: No. ffmpeg.wasm runs in the browser via WebAssembly — your video stays local.

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