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

How do I loop a video several times into one file without losing quality?

Open AnyTool's Video Looper, drop in a clip, set how many times to repeat it (2–100), and it stitches the loops into one file. It is lossless and near-instant because it uses a self-hosted ffmpeg -stream_loop with stream-copy — no re-encode — so the quality is identical to the original and the container is kept. Nothing is uploaded, the engine is bundled (no CDN), and there is no watermark.

  • Loop a clip 2–100 times into a single file
  • Lossless and near-instant — stream-copy, no re-encode
  • Identical quality, original container kept
  • Self-hosted engine — no CDN, no upload, no watermark

What is

Video looping

Video looping repeats a clip a set number of times and writes the result as one continuous file. Using stream-loop with stream copy concatenates the repeats without re-encoding, so it is lossless and fast and preserves the original codecs and container. Client-side looping does this in the browser, so the file is never uploaded.

Video Tools

Related terms

stream loopstream copylosslessrepeatffmpeg

How to Loop a Video

Repeat a clip into one file losslessly in your browser.

10 secWeb browser
  1. 1

    Add a video

    Drop in a clip — it stays on your device.

  2. 2

    Set the loop count

    Choose how many times to repeat it (2–100).

  3. 3

    Export

    Build the looped file with stream-copy and download — nothing is uploaded.

Result: A looped video file

Frequently Asked Questions

No — it uses stream-copy (-stream_loop), so the quality is identical to the original.

Because nothing is re-encoded the process is near-instant and keeps the original container.

No — looping runs entirely in your browser with a self-hosted engine.

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

Anywhere from 2 to 100 times into a single output file.

The output simply plays your clip back-to-back the chosen number of times.

Detailed Explanation

Methodology

How the Video Looper Works

AnyTool loops video in the browser with a self-hosted ffmpeg engine (no CDN). It uses ffmpeg's -stream_loop (set to the loop count minus one) together with -c copy, so the identical stream is concatenated end to end without any re-encoding. Because no frames are re-compressed, looping is lossless and near-instant, and the original container is preserved. The looped result is read back as a blob. Everything runs locally on the device. 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 clip is never uploaded
  • Self-hosted ffmpeg core — no CDN
  • -stream_loop (count − 1) with -c copy = no re-encode
  • Lossless and near-instant; original container kept
  • No backend, no watermark, no size cap
Privacy & Security

Privacy & Quality vs Upload-based Loopers

Many online loopers upload your video, re-encode it (losing quality) and cap the size or add a watermark. AnyTool loops locally via stream copy, so quality is preserved bit-for-bit, the file never leaves your browser, and there is no size limit or signup.

Video looping: AnyTool vs typical tools
CapabilityAnyToolTypical tools
Data handlingIn your browserOften uploaded
Re-encodeNone (stream copy)Common
QualityLosslessOften degraded
SpeedNear-instantVaries
Watermark / capNoneCommon
CostFree, no signupFree/limited

AnyTool is a privacy-first client-side looper — looping runs locally via lossless stream copy and nothing is uploaded.