Drop a folder, or click to choose images
JPEG · PNG · WebP · AVIF · HEIC · SVG · GIF · JXL · TIFF
Files never uploaded · 100% client-side · I cannot see your photos · Privacy policy
Pipeline ready: AVIF → WebP (any input still accepted)
Asset Melt Studio is a AVIF to WebP converter that runs entirely on your device. Wider WebP reach from AVIF masters when you need a fallback that is still smaller than JPEG.
Drop one AVIF or a whole folder — the pipeline is already set to WebP using the official WebP encoder. That is the AVIF to WebP workflow people search for: convert AVIF to WebP without an upload, then resize, crop, or hit a size budget (when the codec allows) before you download.
Input is not locked to AVIF: you can still open JPEG, PNG, WebP, AVIF, HEIC, GIF, and more in the same session. The AVIF to WebP URL simply pre-selects WebP so avif to webp jobs start in one click.
A landscape AVIF turned into a WebP fallback.
Fallback, not always smaller
Before · AVIF175 KB — Master still
After · WebP250 KB — Wider support
Step 1
You are already on the AVIF to WebP converter. Output is pre-selected as WebP. You can still drop mixed formats — the AVIF to WebP URL is a starting point, not a file-type lock.
Step 2
Drag AVIF images onto the studio, click to choose, or paste. Folder drops queue nested images. Then process — AVIF to WebP encoding runs in Web Workers on this device.
Step 3
Use the before/after scrubber until the AVIF to WebP result looks right. Adjust quality, crop, or resize, then download one WebP or a ZIP of the batch.
| Topic | AVIF | WebP |
|---|---|---|
| Primary web | AVIF | WebP fallback |
| Support | Newer | Wider than AVIF |
| Alpha | Yes if present | Yes if present |
| Size | Often smaller | Often between AVIF and JPEG |
| Size budget | Supported | Supported |
AVIF to WebP is a fallback factory: AVIF for Chrome/Safari-new, WebP for everyone else modern.
Again, second-generation loss if the AVIF was already aggressive. Best when the AVIF is a high-quality master.
Also export can build the kit in one run if the queue source is PNG/JPEG instead — prefer originals when you have them.
| Source | Before | After | Note |
|---|---|---|---|
| AVIF photo | 180 KB AVIF | ~260 KB WebP | Fallback weight |
| AVIF UI | 70 KB AVIF | ~95 KB WebP | Alpha kept |
| From JPEG original | Best AVIF | Best WebP | Prefer original |
Drop AVIF. WebP out. Size budget on. Alpha preserved if present.
Compare edges; AVIF film grain can look different in WebP.
ZIP the batch for a CDN folder named webp/.
Building `<picture>` fallbacks from AVIF-only folders.
Partners that accept WebP but not AVIF.
Skip AVIF to WebP if you still have PNG/JPEG masters.
WebP quality 80–90. If both look mushy, the AVIF was too low.
Do not downsize twice — match the AVIF dimensions unless you need thumbs.
Keep AVIF in the same ZIP via Also export only when AVIF is the primary output; here primary is WebP.
Strip GPS if any tags survived (AVIF export from Asset Melt is pixels-only; incoming AVIF from elsewhere may vary).
Image processing is 100% client-side in your browser with WebAssembly. Your photos are not uploaded, I cannot see or recover them, and sampled session replay is UI-only and does not include image pixels (media is blocked). The site still sends usage analytics and crash reports — details are on the privacy page. That includes every AVIF to WebP job — the converter never needs your files on a server.
Upload compressors send your bitmap to someone else’s API. Asset Melt keeps avif to webp on this device. Session replay, if sampled, is UI-only and does not include image pixels.
Related conversions