Add your AVIF file
Drop one or more .avif files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
AVIF to WEBP
Converting a .avif image to .webp re-encodes the pixels for a different balance of size, quality, and support. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop AVIF files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting AVIF image to WebP image
Converting a .avif image to .webp re-encodes the pixels for a different balance of size, quality, and support. An .avif file stores a still image (or sequence) coded with the AV1 video codec inside a HEIF-derived container. It is currently among the most efficient image formats deployed on the web, routinely beating JPEG by half at similar quality while adding HDR, wide gamut, and alpha.
A .webp file is Google's web-oriented image format, offering both lossy and lossless compression plus alpha and animation in one container. At equivalent visual quality, .webp files typically undercut JPEG by 25-35 percent, which is why CDNs and site optimizers convert to it aggressively. For this route the practical draw is smaller than JPEG for photos and usually smaller than PNG for graphics and one format covers lossy, lossless, alpha, and animation — balanced against mandatory 4:2:0 subsampling in lossy mode caps color fidelity below high-quality JPEG or AVIF, which is worth knowing before you commit a large batch.
Why convert AVIF to WEBP?
The practical trigger for this conversion is usually a mismatch: with .avif, encoding is much slower than JPEG or WebP, especially at high effort settings. Switching to .webp buys you smaller than JPEG for photos and usually smaller than PNG for graphics, which is why it is the better fit for serving photos and graphics on websites where bandwidth and Core Web Vitals matter. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
AVIF vs WEBP at a glance
| Aspect | AVIF image (.avif) | WebP image (.webp) |
|---|---|---|
| Format type | Lossy — discards detail it judges invisible to shrink files | Lossy — discards detail it judges invisible to shrink files |
| How it stores data | encodes AV1 intra frames; both lossy and a mathematically lossless mode are defined | lossy mode encodes VP8 intra frames with block prediction; lossless mode uses its own dedicated coding with spatial predictors and color transforms |
| Strongest at | serving hero images and photo galleries where bandwidth savings are significant | serving photos and graphics on websites where bandwidth and Core Web Vitals matter |
| Weak spot | encoding is much slower than JPEG or WebP, especially at high effort settings | mandatory 4:2:0 subsampling in lossy mode caps color fidelity below high-quality JPEG or AVIF |
| Metadata | eXIF and XMP are stored as metadata items in the HEIF container alongside ICC profiles or CICP color signaling, and mainstream encoders preserve them on conversion | eXIF and XMP travel in dedicated RIFF chunks and ICC profiles are supported, though a fair amount of conversion software strips metadata by default when writing WebP |
Pick WEBP as the output
Select .webp in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if WEBP is selectable, the route is real and validated.
Convert on your device
Press Convert. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid WEBP file. Outputs keep the original filename with the .webp extension.
AVIF to WEBP questions, answered
Will converting AVIF to WEBP lose quality?
A second lossy step always costs a little, because avif is lossy-oriented and webp is lossy-oriented and each encoder discards detail differently (generation loss). At the default quality the difference is rarely visible; avoid repeated round-trips between .avif and .webp.
Is it private to convert AVIF files here?
Yes — the .avif file is processed inside your browser tab and never uploaded. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders. Close the tab and the file is gone from memory.
Where will the WEBP file work?
Chrome, Edge, Firefox, and Safari (since version 14 in 2020) all decode WebP natively, as do Android and current versions of Windows and macOS system viewers. Older tools from before roughly 2020 — legacy Photoshop releases, older email clients, many kiosk printers — commonly fail on it, so JPEG or PNG remains the safer handoff format outside the browser.
Will the WEBP file be bigger or smaller than my AVIF?
It depends on the content: lossy mode encodes VP8 intra frames with block prediction; lossless mode uses its own dedicated coding with spatial predictors and color transforms. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my AVIF file?
In .avif, eXIF and XMP are stored as metadata items in the HEIF container alongside ICC profiles or CICP color signaling, and mainstream encoders preserve them on conversion. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.
Can I convert WEBP back to AVIF?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .avif → .webp → .avif is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.