Optimize & inspect · Free · No upload

Fix a broken GIF

Fix GIF scans a GIF’s internal structure, reports what’s wrong and rebuilds a clean copy. It recovers every complete frame from truncated or partly corrupted files, corrects 0–10 ms frame delays that make GIFs play at the wrong speed, adds the missing loop setting that makes GIFs stop after one play, and clips frames that spill outside the canvas.

  • Runs in your browser
  • No sign-up
  • No watermark
  • Works on mobile
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How to use Fix GIF

  1. 01

    Upload the broken GIF

    Drop the GIF that won’t open, plays wrongly or stops.

  2. 02

    Review the diagnosis

    See exactly what was found, then choose which fixes to apply.

  3. 03

    Fix

    Click Fix GIF and download the repaired file.

Why GIFs break

The most common problems are interrupted downloads (the file ends mid-frame, so some apps refuse to open it), zero-delay frames (browsers play them at 100 ms, other apps as fast as possible — so the same GIF runs at different speeds in different places), and a missing loop block, which makes the GIF play once and stop. Older tools also write frames larger than the GIF’s canvas, which strict viewers reject.

Fix GIF reads the file block by block with a tolerant parser, keeps everything that is intact and writes a brand-new GIF with a valid structure. Use the GIF Tester to inspect a GIF without changing it.

Related fixes

If the GIF is fine but too slow or fast, use the GIF Speed Changer. For loop counts and end pauses, the GIF Looper offers more options. If it’s simply too big to upload, the GIF compressor is the right tool.

Features

  • Recovers truncated files

    Keeps every complete frame and closes the file properly.

  • Fixes timing

    Replaces 0–10 ms delays with a delay you choose.

  • Restores looping

    Adds the NETSCAPE2.0 loop block.

  • Clean rebuild

    Fresh palettes, valid structure, proper trailer.

Fix GIF FAQ

How do I fix a corrupted GIF?

Upload it to Fix GIF. The tool recovers all complete frames, repairs the structure and lets you download a clean copy.

Why does my GIF play too fast or too slow?

Frames with a 0 or 10 ms delay are slowed to 100 ms by browsers but played instantly by some apps. Fix GIF sets those frames to a consistent delay you choose.

Why does my GIF stop after one play?

It lacks the NETSCAPE2.0 loop setting. Fix GIF adds it so the GIF loops forever.

Can every broken GIF be recovered?

Frames that were completely written can be recovered. Frames cut off mid-way are lost, because their pixel data is incomplete.

Are my files uploaded to a server?

No. GifRush processes everything locally in your browser using JavaScript, Canvas, Web Workers and WebCodecs. Your files never leave your device, and closing the tab discards them.

GIF Tester

Inspect any GIF: frames, delays, loop count, palettes, file size and platform checks.

AnalyzerFrame tableSize checks

GIF Looper

Make a GIF loop forever, play a set number of times, or once — plus a pause at the end.

Loop foreverLoop countEnd pause

GIF Speed Changer

Speed up or slow down a GIF from 0.25× to 4×, or give every frame the same delay.

0.25×–4×Frame delaySpeed up

GIF Compressor

Reduce GIF file size with fewer colours, lossy frame diffing, frame dropping and scaling.

LossyColoursFrames

Pause GIF

Play, pause and step through any GIF frame by frame, change speed and save any frame.

Play / pauseFrame stepSlow motion

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