Compress AVIF Image Online
Compress AVIF images online to trim file size further while keeping quality and transparency. Adjust settings, strip metadata, and download free.
How to Compress an AVIF Online for Free
Shrink any AVIF in three easy steps: add your file, choose quality or max-size mode, and save the smaller image—transparency kept, no software needed.
Step 1
Upload Your AVIF
Step 1. Drop an AVIF file from your device into the tool and it starts compressing right away.
Step 2
Set Compression
Step 2. Pick quality or max-size mode, then toggle lossless and choose whether to keep AVIF transparency.
Step 3
Download AVIF
Step 3. Preview the smaller AVIF and download it, or grab every file together in one ZIP.
Shrink AVIF Files While Keeping Quality
AVIF is the newest of the modern web image formats, designed to deliver the same quality as JPEG at roughly half the file size, with extras like HDR color and full transparency. Photographers, developers, and performance teams adopt it precisely because it squeezes the most quality out of the fewest bytes. Yet even AVIF files exported from cameras or converters often carry more data than necessary, and trimming that excess is the final step to unlocking the format’s full speed advantage on the web. Modern sites ship many AVIF assets per page, so trimming each one compounds into meaningful load-time savings. Photographers in particular shoot in AVIF to save card space, so a lighter export keeps that efficiency all the way to the web.
UnoIMG’s free AVIF compressor shrinks those files while protecting what makes AVIF special. By default it keeps the AVIF format and the alpha channel, so transparent regions stay see-through and images look identical after compression. You decide how aggressive to be: lossless mode trims redundant data with zero visible change, ideal for crisp graphics, while the quality slider trades a little softness for much smaller files when photos are involved. The preview updates in real time, so there are never any surprises about the result.
The payoff appears wherever AVIF is used. Web developers slim hero images and transparent assets so pages load instantly; photographers export web galleries that stay sharp on every screen; marketers compress product and social images without losing clean edges. E-commerce stores cut AVIF cutouts for faster category pages, and agencies prepare client deliverables that arrive quickly over any connection. Teachers compress diagram graphics for lesson packs, and app teams shrink icons for faster installs. Batch mode handles a folder of AVIFs in one pass and bundles them into a single ZIP, turning a tedious export chore into a few clicks, while social creators reuse the same compressed set across every platform.
Best of all, the process is private and free. Files never leave your device, there is no watermark, and you stay in full control of the output format and metadata. Whether you keep AVIF for its tiny size, switch to WEBP for broader support, or export JPEG with a background fill, UnoIMG fits naturally into any daily workflow. That blend of speed, transparency preservation, and zero cost is why it belongs in every creator’s toolkit—helping you ship lighter, faster pages without desktop software or an account.
Smaller AVIF
Cut AVIF file size for faster pages while transparent areas stay perfectly clear.
Keep Transparency
Output stays AVIF by default, so alpha channels and transparent backgrounds are preserved.
Lossless Option
Toggle lossless mode to shrink size with zero quality loss—ideal for crisp graphics.
Batch ZIP
Compress many AVIFs at once and download them all together in a single ZIP file.
Private & Free
Files process inside your browser, never uploaded, with no watermark and no cost.
Metadata Control
Keep or strip EXIF and other metadata with one click before you save the file.
FAQ
Frequently Asked Questions
Your transparent pixels stay transparent. The tool keeps the AVIF format by default, so alpha channels and see-through backgrounds are preserved exactly as in the original file. Nothing turns black or solid.
By default the output stays AVIF, keeping full quality and transparency intact. If you need broader support, you can also choose WEBP or JPEG before you download with a single click.
You decide the trade-off. Use lossless mode for crisp, unchanged graphics, or drag the quality slider to shrink further. Most AVIFs still look identical to the eye while losing plenty of weight.
Yes. Compression runs entirely in your browser, so your AVIFs are never uploaded to a server or stored anywhere. Nothing leaves your machine at any point, keeping sensitive designs and logos fully on your device.
Yes. Add multiple files together, set your preferences once, and UnoIMG compresses them all in a batch before you download every finished AVIF together in a single ZIP archive, saving you from handling each file one by one.
That is up to you. A metadata toggle lets you keep EXIF and other embedded information or strip it before download, which also trims the final file size a little more.