WebP to PNG converter – lossless output, full compatibility

Content last reviewed:2026-09-30

Convert WebP files to lossless PNG. Add images, convert instantly in your browser, and download. Nothing is uploaded to any server. In our measurement a 1920 by 1280 pixel photo went from 212.8 KB as WebP to 3.44 MB as PNG.

Files in queue

Add WebP files on the left to start converting to PNG.

Why convert WebP to PNG?

WebP is optimized for web delivery but not every application supports it — Photoshop before version 23.2 of February 2022, older Office versions, legacy CMS systems, and some print workflows require PNG. Converting WebP to PNG gives you a universally supported lossless format that works everywhere.

PNG supports full alpha transparency, millions of colors, and is natively supported by every browser, operating system, and image editor. The conversion is lossless — every pixel from the decoded WebP is preserved exactly in the PNG output.

PNG files will be larger than WebP because PNG uses less aggressive compression. If you need a compact format, keep the WebP. If you need universal compatibility and lossless quality, PNG is the right choice.

All processing happens locally in your browser — nothing is sent to any server. No registration, no limits, no watermarks.

How to convert WebP to PNG

Quick steps:

Add WebP files
Drag your WebP images onto the drop area or click to select them. No limit on files.
Click Convert
PNG is lossless, so there is no quality slider: every pixel goes into the file unchanged and transparency stays.
Download PNG
The Download button next to a file saves it on its own, and Download all packs all finished files into one ZIP archive. With a single finished file no archive is made, the file downloads directly.

How much does a file weigh before and after WebP to PNG conversion?

We ran 8 WebP files through this converter with no quality slider, because the output is lossless or fixed: two Unsplash photos at different resolutions, a product photo, a leaf macro, a real screenshot with text, a logo and an icon with a transparent background, and a text page at scanner resolution. Weights are given exactly as the tool prints them in the queue: in kilobytes and megabytes of 1,024 bytes, with the same rounding. We took the measurement ourselves on 11 September 2026 in a Chromium browser; the result depends on the image content, so your file may come out differently.

Test file	Dimensions in pixels	WebP	PNG	Change
Landscape photo	1920 × 1280	212.8 KB	3.44 MB	16.6 times larger
High-resolution camera photo	4000 × 2667	615.4 KB	11.5 MB	19.1 times larger
Product photo on a light background	1200 × 1200	237.2 KB	2.29 MB	9.9 times larger
Leaf macro with fine detail	1600 × 2015	956.0 KB	8.15 MB	8.7 times larger
Screenshot with text	1440 × 900	44.9 KB	375.0 KB	8.3 times larger
Logo with a transparent background	1024 × 1024	19.2 KB	193.9 KB	10.1 times larger
Icon with transparency	256 × 256	4.39 KB	20.4 KB	4.6 times larger
Text page, as from a scanner	1654 × 2339	142.2 KB	1.02 MB	7.4 times larger

Every one of our image format converters carries the same table with a real measurement. The tool shows the weight of your own file before and after conversion next to every row of the queue.

When should you convert WebP to PNG?

Common use cases:

Image editing
Many desktop editors still lack full WebP support. Convert to PNG first to avoid compatibility headaches.
Office documents
Word, PowerPoint, and PDF tools embed PNG natively. WebP support varies and can cause display issues.
Preserving transparency
PNG supports alpha-channel transparency just like WebP. Convert without losing transparent areas.
Sharing with others
Not everyone can open WebP. PNG is a safe, universal choice for sharing images.

What makes this WebP to PNG converter different?

Complete privacy
Files never leave your computer. Conversion uses the browser Canvas API - nothing is uploaded.
Many files at once
Add any number of WebP files, each up to 100 MB. The converter processes them one by one and shows the status of each.
Download in one archive
The Download all button packs all finished files into one ZIP archive, so you do not have to approve a dozen downloads one after another.
Size before and after
Next to every file you see the input and output size, and under the list the total for the whole queue, so you know at once how much a file grew or shrank.

WebP vs PNG – format comparison

Feature	WebP	PNG
Lossy compression	✓	—
Lossless compression	✓	✓
Transparency (alpha channel)	✓	✓
Animation support	✓	✓ (APNG)
Web browser support	Chrome 32+, Firefox 65+, Edge 18+, Safari 14+	All browsers
Color depth	8-bit (16.7M)	8/16-bit
Metadata (EXIF)	✓	✓

Compression, transparency, animation and metadata support according to the MDN image format guide[1], browser versions according to the Can I use compatibility tables[2]; as of 11 September 2026.

Is PNG suitable for a web page?

Not for publishing on the web. For a web page keep WebP or save the image as WebP or AVIF, because those formats give the lightest files in a browser.

PNG makes sense where lossless storage and transparency matters: further editing in a graphics program, graphics with text and sharp edges, office documents.

Tips for converting WebP to PNG

A few tips to help you avoid common issues during conversion:

Very large files
Converting images above 4000×4000 pixels may be slower and strain the browser. If processing many large files, consider splitting them into batches of 10–20.
The file will grow
PNG stores every pixel without loss, so a photo in WebP gives a file several times larger. That is normal; for the web keep WebP.
Transparency
PNG stores an alpha channel, so transparent and semi-transparent areas of the WebP file stay unchanged in the result.
Keep the originals
Converting to PNG does not recover detail lost earlier in WebP, and the resulting file is larger. Keep the original if the image is going back to a web page.

What to expect when converting WebP to PNG?

WebP can use either lossy or lossless compression, while PNG is always lossless. The conversion decodes the WebP data and saves every pixel exactly as-is in PNG format. No additional quality loss occurs.

PNG files will be larger than the original WebP, because PNG stores every pixel without loss. This is expected because PNG uses less aggressive (but lossless) Deflate compression.

If file size is a concern, keep the WebP format. Convert to PNG only when you need universal compatibility with applications that do not support WebP (Photoshop before version 23.2 of February 2022, older Office versions, legacy CMS systems).

Convert other files to PNG

JPG to PNG SVG to PNG BMP to PNG GIF to PNG AVIF to PNG HEIC to PNG TIFF to PNG PDF to PNG Base64 to PNG

Convert WebP to other formats

WebP to JPG WebP to BMP WebP to AVIF WebP to GIF WebP to TIFF WebP to PDF WebP to Base64

Sources

Image file type and format guide — MDN Web Docs
Can I use: AVIF, WebP, HEIF — caniuse.com

The file sizes in the tables were measured by running finished images through this converter in a browser, and we report them the way the tool counts them. What the page says about either format rests on the sources listed above.

Content last reviewed: September 30, 2026 · written and checked by the Arteon team

Frequently asked questions about WebP to PNG conversion

Will I lose quality when converting WebP to PNG?

No. PNG stores every pixel without loss, so the result looks exactly like the image read from the WebP file. Detail lost earlier when WebP was saved is not recovered by the conversion.

Will the PNG file be larger?

Usually yes. PNG uses lossless compression, which preserves all data. WebP achieves smaller sizes through more advanced compression.

Is transparency preserved?

PNG stores an alpha channel, so transparent and semi-transparent areas of the WebP file stay unchanged in the result.

Can I convert multiple files at once?

Yes. Add as many files as you like - no limit.

Are files uploaded to a server?

No. Everything runs locally in your browser via the Canvas API.

What is the maximum file size?

Each file may be up to 100 MB; a larger one stops on the list with a message that it is too large. The number of files in the queue is not limited, and large images take longer because the browser decodes them fully into memory.

Can I convert PNG back to WebP?

Yes. Use our PNG to WebP converter.

Does this work on mobile?

Yes, but a desktop or laptop is recommended for the best experience.

How do I download all files at once?

The Download all button packs the finished files into one ZIP archive named webp-png.zip. With a single finished file no archive is made and the file downloads directly.