Repair Corrupted GIF Online

Repair Corrupted GIF Online. Free, runs in your browser — no upload to servers.

Drop a GIF or click to upload

How to use

  1. Drop in the GIF that will not open or will not animate.
  2. Read the scan — it lists every problem it found and what the rebuild will do about each one.
  3. Click Repair GIF and download the rebuilt file.

Frequently asked questions

What can it actually repair?

A missing or truncated trailer, junk before the header or after the terminator, a missing or malformed Netscape loop block, frames with a zero or absurd delay, and a missing colour table. Frames whose pixel data was cut off get dropped and everything before them is kept.

Why will my GIF not animate?

Usually a missing Netscape looping block, or delays of zero that leave viewers guessing at a frame rate. The scan names which one it is, and the rebuilt file gets a real loop block and sane delays.

What if the file cannot be recovered?

You get the specific reason: it is a PNG with a .gif name, the header stops after six bytes, the first frame never finished downloading. Never a generic "invalid file".

Is there a file size limit?

GIF: 50 MB. Very large GIFs are scaled down to fit browser memory, and the tool tells you when that happens.

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