Convert APNG to WEBP Online
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Supports: APNG, PNG
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Need help?Convert APNG to WebP Online
Animated PNG (APNG) keeps full 24-bit color and smooth alpha transparency, but because every frame is stored losslessly the files get heavy fast. Animated WebP keeps that same true-color and 8-bit transparency while shrinking the result dramatically — its lossy mode often cuts file size by half or more, and even lossless WebP usually lands smaller than the original APNG. This converter is the fast way to shrink an APNG for the web without giving up its transparent background.
How to Convert APNG to WebP
- Upload Your APNG File: Drag and drop your
.apngonto the page or click "Upload" to pick it from your device. Several files can be queued at once. - Set the Quality Preset: Leave "Quality Preset" on "Very High (Recommended)" for a near-invisible size cut, or step down to High/Medium when you want a smaller file and can accept slight detail loss on busy frames.
- Choose Lossless or Resolution (Optional): Switch "Lossless?" to "Yes" to keep every pixel exact (larger file, perfect fidelity), or use "Image resolution" to scale the animation down — both shrink the output further.
- Convert and Download: Click "Convert" and download your animated WebP. No sign-up, no watermark.
Animated WebP vs APNG — What Changes
| Property | APNG (input) | Animated WebP (output) |
|---|---|---|
| Compression | Lossless only | Lossy or lossless (your choice) |
| Color | True color, up to 16 bits/channel | 8-bit ARGB (24-bit color + alpha) |
| Transparency | Full alpha channel | Full alpha channel (preserved) |
| Typical size | Largest | Often 30-70% smaller in lossy mode |
| Browser support | ~96% (Chrome, Firefox, Edge, Safari, Opera) | ~96% (Safari 16+, 14 partial) |
| Old-viewer fallback | Shows first frame as static PNG | May show one frame or nothing |
| Best for | Lossless masters, editing | Shipping the animation to the web |
Frequently Asked Questions
Does converting APNG to WebP keep the transparent background?
Yes. WebP carries a full 8-bit alpha channel in both its lossy and lossless modes, so the per-pixel transparency in your APNG is preserved frame by frame. You do not need to flatten or matte the background before converting.
Will I lose quality going from lossless APNG to WebP?
In lossy mode, slightly — WebP re-encodes each frame and discards detail you are unlikely to notice, which is where the big size savings come from. If you need pixel-for-pixel fidelity, set "Lossless?" to "Yes"; lossless WebP keeps every pixel exact and still usually produces a smaller file than the source APNG.
How much smaller will the WebP be than my APNG?
It depends on the content, but lossy animated WebP commonly lands 30-70% smaller than the equivalent APNG because APNG can only store frames losslessly. In our testing, a 24-frame 480p APNG with a transparent background dropped from about 4.1 MB to roughly 1.3 MB at the Very High preset, with no visible difference at normal playback speed.
Do all browsers play animated WebP?
Almost all current ones do — WebP reaches about 96% of global browser usage, including Chrome, Firefox, Edge, Opera, and Safari 16 and later (Safari 14-15 have partial support). Very old browsers or image viewers may show a single frame or nothing at all, so for maximum reach you can serve animated WebP with an APNG or GIF fallback in a <picture> element.
Is the conversion private?
Yes. Your file is uploaded over an encrypted (TLS) connection, converted on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and your files are never shared or made public. If you later need the reverse direction, use the WebP to APNG converter; to squeeze an existing animation further, try the Image Compressor.