Bulk GIF to AVIF Converter
Convert GIF images to AVIF, the most efficient web image format available today, and cut file sizes by up to 80% while unlocking full color depth and smooth transparency. GIF belongs to 1987. AVIF belongs to the modern web.
Your images
0 images addedConvert GIF to AVIF in 3 Steps
No account, no install, no queue. Drop your GIF files in and the AVIF versions are ready to download.
- Step 1
Drop your images in
Drag files onto the page, click to browse, or drop in a ZIP and every supported image inside is pulled out. JPG, PNG, WebP, AVIF, HEIC, GIF and BMP all work, mixed together in the same batch.
- Step 2
Adjust if you want to
Choose your output format and drag the quality slider. That is the whole setup. Settings holds a KB target, resizing and batch renaming if you want them, and can stay closed if you do not.
- Step 3
Download your AVIF files
Conversion starts on its own, so there is usually nothing to press. Batches over 40 wait for one click so nothing runs away with your machine. Download files one at a time or take the whole batch as a single ZIP.
Why Convert GIF to AVIF?
GIF and AVIF represent opposite ends of the image format timeline. GIF was designed in 1987 for dial-up modems and 256-color displays. AVIF is the product of a 2018 alliance of Google, Apple, Netflix, Mozilla, and Microsoft. Built on the same AV1 codec that powers modern high-efficiency video streaming. Converting a GIF to AVIF is one of the most impactful format upgrades you can make: file sizes drop by 60–80%, the 256-color restriction disappears, transparency becomes smooth full alpha, and the result is natively supported by every major modern browser. It's the highest-efficiency path for delivering former GIF content on the web today.
Graphics Interchange Format
GIF is a 1987 lossless format whose limitations are fundamental and unfixable by design. Its 256-color per-frame palette causes visible banding, dithering, and posterization on any image with gradients or photographic content. Its LZW compression hasn't meaningfully improved in four decades. For static images destined for modern web delivery, GIF is dramatically outclassed by every format developed since the early 1990s.
AV1 Image File Format
AVIF is the most efficient static image format in mainstream use today. Built on the AV1 codec, it delivers file sizes 60–80% smaller than equivalent GIFs while rendering with full color depth, full alpha transparency, HDR support, and wide color gamut. Supported across Chrome, Firefox, Safari, and Edge, covering over 90% of global web users, AVIF is the definitive upgrade path for GIF content headed to any modern web delivery pipeline.
From 1987 to 2024. In One Batch.
The gap between GIF and AVIF is larger than any other conversion on this site. Convert your GIF library to the most efficient web image format available. In bulk, privately, with no installation.
True Bulk Conversion
Convert 10 or 500+ GIF files to AVIF in one batch. No file limits. Process your entire GIF library in a single run without throttling or queues.
100% Private & Secure
Client-side only. Your GIF files never leave your device. No server, no cloud, no third party sees your images at any point during conversion.
Adjustable Quality Control
AVIF retains exceptional visual quality at lower numbers than other formats. Quality 70–85 is the optimal range for GIF-sourced content. Use the before/after slider to dial in your settings before batch-processing.
ZIP Upload & Download
Upload a ZIP of GIF files. Download all converted AVIF images as a single ZIP. Perfect for bulk web asset updates, icon library migrations, and CDN image refreshes.
Batch File Renaming
Set a custom prefix, separator, numbering, and.avif extension. Preview the filename pattern before downloading your entire converted batch.
the maximum size option
Need AVIF files under 100 KB for a specific CDN budget or upload limit? Set a target KB and the tool finds the optimal quality per image automatically. Especially effective given AVIF's superior compression starting point over GIF.
Works on Every Device
Windows, Mac, Linux, Chromebook, iPhone, Android. Any modern browser handles the conversion with no installation required.
Selective Processing
Upload your full GIF library and select only the images you want as AVIF. Only those are converted. No pre-filtering required before uploading your collection.
Transparency Upgraded to Full Alpha
GIF's binary (on/off) transparency becomes AVIF's smooth full alpha channel. Giving you clean, anti-aliased edges instead of GIF's harsh pixel-sharp cutouts. Need to flatten transparency to white instead? Use our GIF to JPEG converter.
GIF vs AVIF vs WebP
How do these three formats compare for modern web image delivery? The numbers tell a clear story.
| Feature | AVIF | WebP | GIF |
|---|---|---|---|
| Compression vs GIF baseline | 60–80% smaller | 50–75% smaller | Baseline |
| Color depth | 16 million colors | 16 million colors | 256 colors only |
| Transparency | Full alpha channel | Full alpha channel | Binary on/off only |
| Browser support | Chrome, Firefox, Safari, Edge (90%+ users) | All modern browsers | Universal |
| HDR & wide color gamut | Yes | No | No |
| Email client support | Limited | Limited | Varies by client |
| Year introduced | 2019 | 2010 | 1987 |
| Best use case | Modern web delivery | Web delivery | Legacy / animation |
When You Need GIF to AVIF
If your GIF images are headed to the web, AVIF is the highest-impact upgrade available. Here's where it makes the biggest difference.
Maximum Web Performance Optimization
Of all the image format upgrades you can make for web performance, GIF to AVIF delivers the largest absolute reduction in file size. GIF is so inefficient that switching to AVIF can slash image payload by 60–80%. A direct improvement to page load speed, Core Web Vitals LCP scores, and mobile user experience on limited connections.
CDN Cost Reduction at Scale
If you're serving GIF images through a CDN at any meaningful volume, converting to AVIF is one of the most direct levers for reducing monthly bandwidth costs. A 70% reduction in average image size across thousands of assets compounds significantly at scale. Especially on high-traffic pages that serve the same images repeatedly.
Modernizing Legacy Icon & Illustration Libraries
Icon sets, clip art collections, and illustration libraries distributed as GIF files are widespread across older websites and codebases. Converting the entire library to AVIF delivers dramatically smaller files with full color fidelity and smooth transparency. Significantly better visual quality alongside better performance.
CMS Site Migrations & Image Library Refreshes
Migrating a legacy CMS with years of accumulated GIF assets? Converting the image library to AVIF as part of the migration is a no-brainer. File sizes shrink dramatically, quality improves for photographic content, and the assets are future-proofed for browsers that prioritize AVIF in their accept headers.
Building Modern Multi-Format Delivery Pipelines
Best practice for web image delivery is serving AVIF to supporting browsers with WebP and JPEG fallbacks for older ones. Convert your GIF library to AVIF here to generate the primary delivery format, then use our other GIF converters to build out the full fallback stack.
Community Platforms & User-Generated Content
Forums, community platforms, and social tools that accept GIF uploads for avatars, stickers, and decorative assets can dramatically reduce storage and bandwidth costs by converting incoming GIFs to AVIF on the server side. For assets you control directly, pre-converting to AVIF before upload achieves the same benefit without platform-side changes.
Trusted for GIF to AVIF Conversion
Real feedback from people converting GIF to AVIF every week, from teams in the UK, US, India, Japan, Pakistan, the UAE and beyond.
The thing that sold me is that there is no upload. I opened devtools, converted twenty GIF files to AVIF, and watched the network panel stay empty. That is a real privacy claim, not marketing copy.
Been using a paid TinyPNG plan for years for this. Honestly, for straightforward GIF to AVIF work this is quicker. No launch time, no export dialog, just drop and go.
Converted our whole media library and Lighthouse stopped complaining about image delivery. Largest Contentful Paint came down noticeably on the pages with the heaviest GIF assets.
No account, no upsell, no "you have 3 conversions remaining today". Just a tool that converts GIF to AVIF and gets out of the way.
Being able to set the output filenames and the ZIP name in the same pass means the files land in our repo correctly named. That is the difference between a tool I use once and one I use weekly.
The batch handling is the reason I keep this bookmarked. 150 GIF images to AVIF in one pass, with a progress bar that actually tells you which file it is on. Most converters choke well before that.
The quality slider plus the before/after comparison is the combination I wanted. I can push AVIF down until I can actually see the difference, then back off one notch. No guessing.
Being able to upload a ZIP and download a ZIP is what makes this usable for real work. I am not selecting 200 GIF files by hand and I am definitely not downloading 200 AVIF files one at a time.
Straightforward GIF to AVIF conversion that does what it says. often 20-30% smaller again than WebP on photographs, and that is exactly what I needed for our asset pipeline.
Faster than uploading would have been. Because it runs on my machine there is no waiting for a server queue. The GIF files convert as fast as my laptop can process them.
Runs fine on a locked-down work laptop where I cannot install anything. That is the entire reason I found this in the first place.
Our client contracts forbid uploading unreleased assets to third-party servers, which rules out almost every online converter. This one runs in the browser, so the GIF files never leave the machine. I checked the network tab myself before I trusted it.
GIF to AVIF Conversion and Compression Explained
What changes when you convert GIF to AVIF, what it costs, and how to pick a quality setting you will not regret.
GIF was designed in 1987 for 256-colour displays, and it still behaves that way. A photograph saved as a GIF gets flattened into a palette that produces visible banding across skies and skin tones, and the file is frequently larger than a PNG of the same picture. Converting to AVIF restores the full colour range and cuts the size at the same time.
Both formats are lossy, so the conversion re-encodes rather than copies. Keep quality at 85 or above if the file is going to be edited again, and use the before and after slider to check the first image of a batch before you commit to the rest.
Set quality once and it applies to the whole batch, so a folder of two hundred files takes the same number of decisions as one. AVIF encoding is genuinely slower than the alternatives, so a large batch takes minutes rather than seconds. It runs on your own processor, which is why it is not instant, and also why nothing is queued behind other people's jobs. If you are working to a hard limit, such as a content management system that rejects anything over 200 KB, open Settings and set a maximum file size instead of a quality percentage. The encoder then searches for the best quality that fits your budget, file by file.
All Formats. One Tool.
GIF to AVIF is one of twenty-four conversion paths here, and each one has its own page with defaults already set for that pair. Whichever you land on, the tool behind it is the same: it accepts JPG, PNG, WebP, AVIF, HEIC, GIF and BMP, reads ZIP archives, and handles up to 500 images in a single batch.
Conversion runs in your browser using your own processor, so nothing is uploaded, nothing is queued behind other people, and there is no account, no watermark and no daily cap. Close the tab and the files are gone from memory; they were never anywhere else.
If you need a smaller file rather than a different format, the image compressor keeps your originals and works to a quality level or a size in kilobytes. To change dimensions, the image resizer handles fit, fill and crop, or stretch across a whole folder at once.
Frequently Asked Questions
Quick answers about converting GIF to AVIF.
Is it safe to convert GIF to AVIF on SmallerImages?
How much smaller will AVIF files be compared to my GIFs?
Does AVIF preserve GIF transparency?
What quality setting should I use for AVIF output?
Which browsers support AVIF?
When should I use GIF to AVIF instead of GIF to WebP?
What about animated GIFs: can I convert those?
Can I also convert GIF to WebP, PNG, or JPEG?
How many GIF files can I convert at once?
Is SmallerImages completely free?
37 Years of Format Progress. One Batch Conversion.
GIF was state of the art in 1987. AVIF is state of the art today. The gap is 60–80% smaller files, full color depth, smooth transparency, and support across every modern browser. Convert your GIF library to AVIF for free, privately, without uploading a single file.
Convert GIF to AVIF Now