AnyTool
Your files never leave your device. All processing happens locally in your browser.

How do I reverse a video to play it backwards in my browser?

Open AnyTool's Video Reverse, drop in a short clip, and it plays the footage backwards using a self-hosted ffmpeg engine in your browser. Choose an audio mode — reverse the audio with the video, keep the audio playing forward, or mute it — and optionally make a boomerang that plays forward then reverse. Because every frame is buffered in memory, it works best on short clips. The video is never uploaded, the engine is bundled (no CDN), and there is no watermark.

  • Reverse playback with optional boomerang (forward-then-reverse)
  • Three audio modes: reverse, keep forward, or mute
  • Best for short clips (all frames buffer in memory)
  • Self-hosted engine — no CDN, no upload, no watermark

What is

Video reversal

Reversing a video plays its frames in the opposite order so the action runs backwards. A boomerang variant plays the clip forward and then in reverse for a seamless loop. Because reversal needs every frame in memory, it suits short clips. Client-side reversal re-encodes the video in the browser, so the file is never uploaded.

Video Tools

Related terms

reverse playbackboomerangbackwards videoloopffmpeg

How to Reverse a Video

Play a video backwards in your browser.

25 secWeb browser
  1. 1

    Add a video

    Drop in a short clip — it stays on your device.

  2. 2

    Pick options

    Choose an audio mode (reverse, keep forward or mute) and optional boomerang.

  3. 3

    Export

    Reverse and download — nothing is uploaded.

Result: A reversed video clip

Frequently Asked Questions

No — the clip is reversed entirely in your browser with a self-hosted engine.

The file never leaves your device and there is no watermark, size cap or signup.

You choose: reverse the audio with the video, keep it playing forward, or mute it.

Reversed audio plays backwards in sync; the keep-forward option pairs reversed video with normal-direction sound.

Reversal buffers every frame in memory, so very long videos can exhaust device memory.

For a few-second clip it is fast; an optional boomerang plays it forward then in reverse.

Detailed Explanation

Methodology

How the Video Reverser Works

AnyTool reverses video entirely in the browser using a self-hosted single-threaded ffmpeg.wasm engine — the core (ffmpeg-core.js + the 32 MB wasm) is bundled from npm and served as a same-origin asset, so nothing is fetched from a CDN. The clip is written to ffmpeg's virtual filesystem (MEMFS) and run through the reverse video filter (with areverse for audio), then read back as a blob. Three audio modes are offered: reverse the audio with the video, keep it playing forward, or mute it entirely. An optional boomerang mode concatenates the forward clip with its reversed copy for a seamless back-and-forth loop. Because the reverse filter must buffer every frame in memory, it is best for short clips. Single-threaded is deliberate: the multi-threaded core needs SharedArrayBuffer + cross-origin isolation (COOP/COEP), which would block cross-origin ad iframes.

  • Runs client-side — the video is never uploaded
  • Self-hosted ffmpeg core (bundled) — no CDN
  • reverse video filter + areverse for audio
  • Audio modes: reverse / keep-forward / mute
  • Optional boomerang via concat of forward + reversed
  • Memory-bound — best for short clips; no backend, no cap
Privacy & Security

Privacy vs Upload-based Reversers

Most online reversers upload your video and cap the size or add a watermark. AnyTool reverses locally with a bundled engine, so the clip never leaves your browser, there is no size cap or watermark and no signup, and it works offline after the first load.

Video reverse: AnyTool vs typical tools
CapabilityAnyToolTypical tools
Data handlingIn your browserOften uploaded
Audio modesReverse / forward / muteVaries
Boomerang loopYes (concat)Rare
Watermark / capNoneCommon
CostFree, no signupFree/limited

AnyTool is a privacy-first client-side reverser — reversing runs locally and nothing is uploaded.