---
title: "WebP to AVIF Converter — Free, No Upload | Compress Pro"
description: "Convert WebP images to AVIF right in your browser — the next step down in size at the same visual quality. Transparency survives, nothing is uploaded. Free."
canonical: https://compress-pro.com/webp-to-avif
---

# Convert WebP to AVIF.

> WebP re-encoded to smaller AVIF — right in your browser.

Convert WebP images to AVIF right in your browser — **re-encoded locally, never uploaded**. WebP was the web’s efficiency upgrade of the 2010s; AVIF is the same step taken again. Stills typically come out 20–40% smaller at matching visual quality, transparency included.

**No uploads · No ads · Free & open source.**

## How it works

1. Drop files anywhere on the page, click to browse, or paste with Ctrl/⌘ + V.
2. Pick a quality or preset — or set an exact target size and let the tool find it.
3. Compress, compare before/after, and download — individually or as a ZIP.

## One generation newer

AVIF’s AV1-based compression outperforms WebP’s VP8 roots on nearly every image type — smoother gradients, cleaner detail at low quality, tighter files. The gap is biggest on photographic content and high-quality sources. Both formats enjoy universal current-browser support, so for the web this conversion is almost pure savings; [Compress WebP](https://compress-pro.com/compress-webp) is the tool when the file must stay WebP.

## Animated WebP: first frame only

AVIF output here is still-image only — an animated WebP converts to a single AVIF of its first frame, and the tool warns when that happens. To shrink an animation while keeping it moving, run it through [Compress WebP](https://compress-pro.com/compress-webp) instead, which re-encodes animated WebP natively.

## Frequently asked questions

### How much smaller is AVIF than WebP?

Typically 20–40% at the same visual quality for stills — a smaller jump than from JPG, but real. High-quality sources gain the most.

### What happens to animated WebP?

Only the first frame is kept — AVIF output is still-image only, and a warning tells you when an animation was flattened. Keep animations in WebP instead.

### Is transparency preserved?

Yes — both formats carry a full alpha channel, so see-through regions survive the conversion exactly.

### Do my files leave my device?

No — the pixels never leave your machine. Decoding and re-encoding both happen in your browser; there is no upload to wait for and no server-side copy to worry about afterwards. Want proof? Run one file through, switch your connection off, and run another — it still works.

## Related tools

- [Compress WebP images](https://compress-pro.com/compress-webp)
- [Convert JPG to AVIF](https://compress-pro.com/jpg-to-avif)
- [Convert AVIF to JPG](https://compress-pro.com/avif-to-jpg)

---

Part of [Compress Pro](https://compress-pro.com/) — every tool page has a markdown twin at `<page url>.md`. Full tool index: [llms.txt](https://compress-pro.com/llms.txt)