Animated GIFs get big fast, and chat apps and email cap attachment sizes. This compressor rebuilds your GIF with a smaller colour palette, optional resizing and optional frame dropping, while keeping the animation and its timing. It all happens in your browser.
What is Compress GIF?
Our compress gif tool makes animated GIFs smaller while keeping them animated. It rebuilds the file with a tighter colour palette, an optional smaller width and, if you choose, fewer frames, so a reaction GIF or screen recording fits under the size limit of a chat app, forum or email.
GIF is an old format with no modern compression, so even a short clip can weigh several megabytes. That causes failed sends on Discord and Slack, slow-loading web pages and bounced emails. A smaller GIF loads faster for everyone who sees it and still plays everywhere a GIF already does.
How to compress gif
- Drop one or more GIFs.
- Pick a compression level, and optionally a smaller width or fewer frames.
- Download the smaller GIF.
How Compress GIF works
A GIF stores each frame with up to 256 colours taken from a palette, then compresses the pixels with LZW, a lossless method from the 1980s. File size depends mainly on three things: how many pixels each frame has, how many frames there are, and how noisy the colours are, because LZW works best on long runs of identical values.
This compressor decodes every frame in your browser, rebuilds full frames from the partial patches GIFs often use, and then builds one shared palette from colours sampled across the whole animation: 255 colours on Light, 192 on Balanced and 128 on Strong. Balanced also trims the width to 90% and Strong to 75%, unless you set your own maximum width.
It then encodes only what changes. Pixels that match the previous frame are marked transparent, so later frames store just the moving parts. When frames are dropped, the remaining frames are held on screen longer, so the animation lasts as long as before, and the original loop setting is kept.
Key features of Compress GIF
Free for every GIF
Compress GIFs with no size cap and no watermark burned into your animation. Drop a batch and download the results one by one or together as a ZIP.
Never makes a GIF bigger
If your chosen level does not produce a smaller file, the next stronger setting is tried automatically. If the GIF is already well optimised, you get the original back with a note, rather than a larger file.
Encoded on several cores
Frames are encoded by background workers that use your device's spare processor cores. A typical reaction GIF compresses in a few seconds once the GIF libraries have loaded on first use; long, wide recordings take longer.
Works on phone or desktop
Use it in Chrome, Edge, Safari or Firefox on Windows, macOS, Linux, iPhone, iPad and Android. Save a GIF from a chat, shrink it on your phone and send it straight back without installing an app.
Simple, labelled controls
The compression level, width and frame options are labelled controls that work with Tab, Enter and the arrow keys. Progress is announced to screen readers, dark mode is available, and the layout holds up at high zoom with no time limit.
Animations stay on your device
Your GIFs are decoded and re-encoded in your browser and never sent to a server. That suits unreleased game footage, product demos and private clips you would rather not hand to a third party.
What makes EZ Compress's Compress GIF different
Shows exactly what changed
Each result notes the frame count, the old and new file size, the percentage saved and any change in dimensions, so you can see what each setting did and pick the trade-off you like best.
Timing and looping preserved
Dropped frames do not speed up your animation. Their display time is added to the frames that remain, and the loop count from the original file is carried over, so a GIF that plays once still plays once.
One palette for the whole animation
Colours are sampled from every frame, not just the first, so a scene that changes colour halfway through does not suddenly turn blotchy. Similar colours are merged according to how often they appear.
Batches with no server queue
Several GIFs compress in one go right in your browser, with no file transfer to wait for and no queue behind other people's jobs. Your connection speed makes no difference once the page has loaded.
Why use Compress GIF?
Chat apps cap file sizes, and GIFs hit those caps quickly. Use this gif compressor to make a reaction GIF fit Discord, Slack, Teams or a forum signature, or to reduce gif size before adding it to a README, a product page or a newsletter where heavy images slow down loading.
For the biggest savings, combine settings. A smaller maximum width cuts the pixel count of every frame, and keeping every 2nd frame roughly halves the frame count. A long screen recording can often be brought down to a fraction of its size this way while staying perfectly readable, which is the easiest way to make gif smaller without turning it into a video.
Who can use Compress GIF?
Discord and Slack users
Shrink reaction GIFs and memes to fit message size limits, so they send first time instead of bouncing back with a file-too-large error.
Developers
Compress screen-capture GIFs for READMEs, pull requests and documentation so pages load quickly and repositories stay lean.
Email marketers
Keep animated banners in newsletters light enough to load quickly on mobile data and keep the overall weight of each email down.
Bloggers and web designers
Trim animated illustrations and how-to GIFs so they do not drag down page speed scores on articles and landing pages.
Online sellers
Make animated product demos small enough for marketplace listings and social posts that limit how large a GIF can be.
Game developers
Shrink gameplay clips for devlogs, store pages and social posts, without the footage leaving your machine before launch.
Settings explained
| Setting | What it does |
|---|---|
| Compression | Light keeps the most detail, Recommended balances size and quality, Strong gives the smallest file. |
| Max width (px, 0 = keep) | |
| Frames |