WebP to AVIF Converter
Convert WebP to AVIF online — fast, secure, watermark-free. No signup required.
auto-delete in 24h · no signup · no watermark
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How to convert WebP to AVIF online
- Click "Browse Files" or drag your WebP file into the converter above (up to 200 MB free, 500 MB with an account).
- The target format is preset to AVIF — adjust quality options in the picker if you need to.
- Hit "Convert". Your file uploads over an encrypted connection and converts automatically in the cloud — nothing to install.
- Click the green "Download" button to save your AVIF file. The original is deleted immediately and the result auto-deletes after 24 hours.
That is the entire flow — no email address, no software install, no watermark on the output. The page you are reading handles WebP to AVIF from start to finish.
What's the difference between WebP and AVIF?
WebP (WebP image) and AVIF (AV1 Image File Format) solve different problems: WebP is a lossy compression format built for web images, e-commerce product photos, while AVIF is a lossy compression format whose strength is next-gen web images, photography portfolios. In practice you will meet WebP when dealing with web images, e-commerce product photos, and reach for AVIF when you need next-gen web images, photography portfolios — the table below compares them point by point.
| WebP | AVIF | |
|---|---|---|
| Full name | WebP image | AV1 Image File Format |
| Developed by | Alliance for Open Media | |
| Released | 2010 | 2019 |
| Compression | Lossy compression | Lossy compression |
| Typical use | web images, e-commerce product photos | next-gen web images, photography portfolios |
| File extension | .webp | .avif |
| MIME type | image/webp | image/avif |
Why convert WebP to AVIF?
WebP is a modern image format released by Google in 2010, based on the VP8 video codec. It supports both lossy and lossless compression plus transparency and animation, and typically produces files 25–35% smaller than JPG at the same visual quality. All modern browsers support it. Here is when AVIF is the better choice:
- →AVIF is the most efficient mainstream image format — about half the size of JPG at equal quality.
- →HDR and 10-bit color support make it future-proof for photography.
- →It runs in the cloud — 10 free conversions a day with files up to 200 MB (20/day and 500 MB with a free account) — so even a phone or an old laptop converts at full speed.
Before you convert: three quick tips
- ●If your image has a transparent background, pick a target that supports it (PNG, WebP, AVIF); converting to JPG fills transparency with white.
- ●For web use, the modern formats (WebP, AVIF) save the most bandwidth; for maximum compatibility, JPG and PNG remain the safe choices.
- ●Keep your original WebP — conversion never modifies it, and if you later need a different target format, starting from the original always gives the best quality.
AVIF conversion settings explained
The quality setting (1–100) controls how aggressively AVIF compresses. Filevo defaults to 85 — the golden value for web and everyday sharing: compression artifacts are essentially invisible while files stay around half the size of quality 100.
How to choose: 75–80 for web images where every kilobyte counts; 85 (default) for almost everything; 95+ for print or images you plan to edit further. Note that quality 100 is still not lossless — choose PNG or TIFF as the target if you need true lossless output.
How the conversion works
Filevo converts WebP to AVIF with libvips, the high-performance open-source image engine that powers the Sharp library used across the industry. libvips processes images as a stream with a tiny memory footprint, so a typical photo converts in under a second. The work happens on our servers, not your device — a phone or an aging laptop converts just as fast as a workstation.
What is WebP?
WebP is a modern image format released by Google in 2010, based on the VP8 video codec. It supports both lossy and lossless compression plus transparency and animation, and typically produces files 25–35% smaller than JPG at the same visual quality. All modern browsers support it.
| Full name | WebP image |
| Developer | |
| Released | 2010 |
| MIME | image/webp |
What is AVIF?
AVIF is an image format released in 2019 by the Alliance for Open Media, built on the AV1 video codec. It achieves roughly 50% smaller files than JPG at the same quality, supports HDR, wide color gamut, and transparency, and is now supported by all major browsers.
| Full name | AV1 Image File Format |
| Developer | Alliance for Open Media |
| Released | 2019 |
| MIME | image/avif |
Filevo vs other WebP to AVIF converters
An honest comparison — CloudConvert and Convertio are capable tools; here is where Filevo differs:
| Filevo | CloudConvert | Convertio | |
|---|---|---|---|
| Free tier | 10/day | 10/day | 10 credits/day |
| No signup needed | Yes | Yes | Yes |
| Watermarks | None | None | None |
| Ads on free tier | No | No | Yes |
| Pricing model | 1 file = 1 credit, shown upfront | Per conversion minute | Credit packs |
Privacy & file security
Filevo deletes your uploaded WebP file immediately after conversion and removes the converted AVIF within 24 hours. Everything travels over TLS encryption, processing is fully automated with zero human access, and your files are never used for AI training. See our Privacy Policy for details. Privacy Policy →
WebP to AVIF converter FAQ
How do I convert WebP to AVIF for free?
Drop your WebP file into the converter at the top of this page, confirm AVIF as the target, click Convert, and download the result. It is genuinely free: 10 free conversions a day with files up to 200 MB (20/day and 500 MB with a free account), no watermarks, no software to install, no account required.
Is it safe to convert WebP files online?
Yes. Transfers are TLS-encrypted end to end, and conversion is fully automated — no human ever sees your files. Your uploaded WebP is deleted the moment conversion finishes, and the converted AVIF auto-deletes after 24 hours (you can delete it sooner). We never use your files for AI training or share them with anyone.
Will I lose quality converting WebP to AVIF?
Both WebP and AVIF are lossy formats, so re-encoding introduces a small generational loss. Filevo defaults to high quality settings that keep it imperceptible for typical content — just avoid converting the same file back and forth repeatedly.
How long does WebP to AVIF conversion take?
Usually seconds. The conversion itself takes from under a second to a few seconds for images and audio — most of the wait is the upload, which depends on your connection speed. Since processing happens in the cloud, your device stays fast, and you can run several conversions in parallel.
Can I convert WebP to AVIF on iPhone or Android?
Yes. Filevo runs entirely in the browser, so it works the same on iPhone, Android, tablets, and computers — no app to install. On mobile, tap Browse Files to pick from your photos or files.
What's the maximum file size?
Anonymous conversions accept files up to 200 MB; a free account raises that to 500 MB. Paid plans go from 1 GB up to 10 GB per file, with higher daily limits and priority queues.
Can I convert multiple files at once?
One file per conversion today — though you can start several conversions in parallel. Batch upload with zip download is on the near-term roadmap.
Does converting change my image dimensions or resolution?
No. Converting WebP to AVIF keeps the original pixel dimensions — a 4000×3000 image stays 4000×3000. Only the encoding and the file size change.
What will the converted file be named?
Your original name is kept and only the extension changes — holiday.webp becomes holiday.avif, so files stay easy to find.
Whether you need next-gen web images, photography portfolios or simply a file that works where WebP will not open, the converter above turns WebP into AVIF in seconds — free, private, and with nothing to install. Bookmark this page for the next time a WebP file refuses to cooperate.
Last updated: 2026-06-11