WebP to PNG
Process images in your browser — your files never leave your device.
What is the WebP to PNG?
This tool converts WebP images to PNG by decoding the WebP file and re-encoding it losslessly — no quality slider, since PNG has none. It exists mainly for compatibility: WebP is universally supported by modern browsers but still rejected or mishandled by some design software, older CMS platforms, print workflows and Windows apps without a codec extension. Drop in one or more .webp files and get pixel-identical PNGs at the same dimensions, transparency included, in return.
This is a lossless re-encode of whatever the WebP decoder produces — if the source WebP was itself saved with lossy compression, its artefacts carry through unchanged into the PNG, just stored losslessly from that point on. Converting does not restore detail a lossy WebP encoder already discarded; it only makes the file open in places WebP cannot.
Why use a free webp to png?
Opens WebP in software that cannot read it
Older versions of Photoshop, many Windows photo viewers without a codec pack, and some print and publishing tools still cannot open WebP directly — PNG solves that instantly.
Preserves transparency exactly
WebP's alpha channel carries through to PNG's alpha channel unchanged — no flattening, no background fill.
No lossy re-encoding introduced
The conversion step itself adds no compression artefacts. Whatever the WebP decoder outputs is what gets losslessly stored in the PNG.
No settings to configure
There's no quality slider to second-guess — the tool decodes and re-encodes losslessly by default, so the conversion is one click.
Batch conversion with ZIP download
Convert a folder of WebP images at once and download every PNG together in a single ZIP.
How do you use the WebP to PNG?
- 1
Add your WebP files
Drag and drop one or more .webp files, or click to browse.
- 2
Convert
Click Convert — there is no quality decision to make since the output is always lossless PNG.
- 3
Check transparency in the preview
If the source WebP had an alpha channel, confirm it looks correct — this is preserved automatically, but worth a glance on your first file.
- 4
Download
Download files one at a time, or as a ZIP for batches of more than one converted file.
How is webp to png calculated?
Output size ≈ g(pixel count, decoded image entropy) — independent of the source WebP's own compression ratioWhere:
- pixel count
- Width × height, unchanged by conversion
- decoded image entropy
- How much fine detail and noise are present in the decoded pixels — higher entropy compresses worse under PNG's lossless DEFLATE
- source compression mode
- Whether the original WebP was lossy or lossless changes how much detail (or artefact noise) is present to re-encode
The simple version
The tool decodes the WebP fully to raw pixels, discarding any knowledge of how WebP compressed it. Then it re-encodes those pixels the PNG way: lossless, pattern-based compression. If the source WebP was lossy, its compression artefacts are now baked into the pixels and resist PNG's compressor the same way JPEG artefacts do — which is why a lossy WebP converted to PNG is usually bigger, sometimes much bigger, than the WebP itself.
What does it look like in practice?
Lossless WebP graphic
Input
210 KB lossless WebP logo with transparency, 800×800
Result
~260 KB PNG
A modest increase — PNG's DEFLATE and WebP's lossless mode are both fairly efficient on flat graphics, so the size gap here is small.
Lossy WebP photo
Input
340 KB lossy WebP photo, quality ~80, 2400×1600
Result
~1.8 MB PNG
The PNG has to losslessly store the compression artefacts already present from WebP's lossy encoding, which resist compression — the same effect seen converting JPEG to PNG.
Icon set with transparency
Input
Twelve WebP icons, 64×64 each, roughly 4 KB average
Result
Twelve PNGs, roughly 3–5 KB average, alpha intact
Small, simple graphics like icons often convert at close to parity in size, since both formats compress flat colour and sharp edges efficiently.
How accurate is it?
Conversion decodes the WebP to a full bitmap using the browser's native WebP decoder, then re-encodes it losslessly to PNG via canvas.toBlob. The output is bit-for-bit identical to whatever pixels the decoder produced — no further loss happens during this specific conversion step.
- If the source WebP used lossy compression, its artefacts are permanent — this conversion cannot recover detail the original WebP encoder already discarded, only preserve what remains from that point forward.
- Output file size varies significantly depending on whether the source was lossy or lossless WebP — this is not predictable from the WebP file size alone.
- Transparency, including partial alpha values, is carried through exactly since both formats support a full 8-bit alpha channel.
- Pixel dimensions are unchanged by this conversion.
What should you know before using it?
What changes and what stays the same when converting WebP to PNG:
| Property | Result of conversion |
|---|---|
| File size | Varies — roughly similar for lossless-source WebP, often 2–5× larger for lossy-source WebP. |
| Transparency | Preserved exactly, including partial alpha. |
| Image quality | Unchanged — pixels are copied exactly as decoded, no further loss added. |
| Pixel dimensions | Unchanged. |
| Compatibility | Gains support in software that predates or lacks WebP decoding. |
Which tools relate to the webp to png?
The webp to png is one of 31 image tools on this site. These are the ones most often used alongside it — either because they handle the next step in the same job, or because they answer a question this tool raises.
WebP to JPG
Choose this instead when the destination software can't accept transparency anyway, or when a smaller file matters more than a lossless one.
Compress PNG
If the converted PNG is larger than you want, this shrinks it — mainly through dimension capping, since PNG has no quality slider to lean on.
PNG to WebP
The reverse conversion — useful once you are done editing in a PNG-only tool and want the smaller WebP file back for actual deployment.
Compress WebP
If your only goal is a smaller WebP, not a format change, compress it directly instead of round-tripping through PNG.
When should you use a webp to png?
Because the webp to png runs entirely in your browser, it suits work you would not want to hand to a third-party server — client files, unpublished drafts, anything under an NDA. These are the situations people reach for it in most often.
Opening WebP assets in legacy design software
Older versions of image editors and some page layout software cannot import WebP directly. Converting to PNG first unblocks that workflow immediately.
Print and publishing pipelines
Print workflows frequently require PNG or TIFF input. Converting web-sourced WebP assets to PNG satisfies that requirement while keeping transparency for layered layouts.
Uploading to platforms that reject WebP
Some CMS platforms, forums and older upload forms still block or mishandle WebP files. PNG is accepted essentially everywhere.
Editing before recompressing for the web
Convert to PNG to crop or edit losslessly, then convert back to WebP or JPEG afterward for final deployment.
Open the Editing before recompressing for the webFrequently asked questions
Why convert WebP to PNG instead of just compressing the WebP?
Does converting WebP to PNG lose quality?
Why is my converted PNG so much bigger than the WebP?
Does the alpha channel survive converting WebP to PNG?
Can I convert several WebP files to PNG at once?
Is my WebP file uploaded to a server during conversion?
Is the webp to png safe to use?
This tool runs entirely inside your browser. Your text, files and settings are processed on your own device and are never uploaded to our servers — there is nothing for us to store, log or leak. You can confirm it yourself: open your browser DevTools, switch to the Network tab, and use the tool. You will not see an upload request. It also means the tool keeps working if your connection drops mid-task.
Where do these figures come from?
Every method, threshold and standard this page relies on, with a link to the document that defines it. Check them — a tool that will not show its sources is asking you to take its word for it.
- 1Portable Network Graphics (PNG) Specification (Third Edition)
W3C · 2003
Supports: The lossless DEFLATE re-encoding and full 8-bit alpha channel described for the PNG output.
- 2Lossless and Transparency Encoding in WebP
Google Developers
Supports: The description of WebP's alpha channel and lossless mode carried through into the PNG.
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