Is this PNG to WebP converter free?

Yes. Every conversion on Convert Always is free, with no account, no watermark and no daily download cap. The site is funded by advertising rather than subscriptions.

Are my PNG files uploaded to a server?

No. PNG to WebP runs entirely inside your browser using WebAssembly, so the file never leaves your device. You can even disconnect from the internet after the page loads.

Can I convert several PNG files at once?

Yes. Add up to 20 files to the queue, convert them in one pass and download the results individually or bundled into a single ZIP archive.

What is the maximum PNG file size?

Files up to 100 MB each are accepted. Browser-side conversions are limited mainly by your device's memory, so very large video files convert faster on a desktop than on a phone.

Does it work on mobile?

Yes. The converter is built mobile-first and works in Safari and Chrome on phones and tablets. Heavy media conversions are slower on mobile hardware but still run locally.

PNG to WebP Converter — Free & Online

What is PNG?

PNG is a lossless raster format built for graphics rather than photographs. Pixels come back out exactly as they went in, and an alpha channel stores per-pixel transparency.

Created in 1996 as a patent-free replacement for GIF.

Perfectly lossless — logos, screenshots and UI mockups stay crisp
Full 8-bit alpha transparency for overlays and layered artwork
Universally supported and safe to re-save as many times as you like

What is WebP?

WebP is Google's modern web image format. It offers both lossy and lossless modes plus transparency and animation, usually landing 25-35% smaller than the equivalent JPEG or PNG.

Released by Google in 2010 and supported by every major browser since 2020.

Noticeably smaller than JPEG and PNG at comparable visual quality
Handles transparency and animation in one format
Directly improves Core Web Vitals on image-heavy pages

Why convert PNG to WebP?

WebP is the better fit for images published on the web where page speed is the priority, while PNG is built for screenshots, logos, icons and anything that needs transparency or razor-sharp edges.
It sidesteps the main drawback of PNG: photographs are typically two to five times larger than the JPEG equivalent.
You gain noticeably smaller than JPEG and PNG at comparable visual quality.
Compatibility improves where it counts: Chrome, Edge, Firefox, Safari 14+ and all modern mobile browsers and Windows 10+, macOS Big Sur+, Android.

Quality and file size after conversion

Expect a much smaller file. WebP re-encodes the content and drops information it judges imperceptible, which is exactly why the result is a fraction of the PNG original. Keep the PNG master if you may need to edit or re-export later.

Compatibility

PNG opens in Every web browser and operating system, All design tools, office suites and presentation software, Print workflows that accept RGB artwork. WebP opens in Chrome, Edge, Firefox, Safari 14+ and all modern mobile browsers, Windows 10+, macOS Big Sur+, Android, Photoshop 23+, Affinity, GIMP; older versions need a plugin.

If the file has to work for someone else, choose the format their software already understands rather than the one with the best specification.

Limitations to know about

WebP is lossy — the conversion is one-way and re-editing the output repeatedly will degrade it.
Older desktop software and some print tools still refuse to open it
Lossy WebP shows the same generation loss as JPEG when re-encoded repeatedly

When to keep PNG instead

PNG is still the right choice for screenshots, logos, icons and anything that needs transparency or razor-sharp edges. Keep the original alongside the converted copy whenever you might need to re-export at a different size or quality — conversion is quick, but recovering discarded detail is impossible.

How to convert PNG to WebP

1
Drag your PNG file onto the drop zone above, or click to browse. Up to 20 files can be queued at once.
2
WebP is already selected as the output format — change it in the dropdown if you need something else.
3
Press Convert and watch the per-file progress bar.
4
Download the WebP result, or grab everything as a single ZIP when you converted a batch.

Frequently asked questions

Is this PNG to WebP converter free?: Yes. Every conversion on Convert Always is free, with no account, no watermark and no daily download cap. The site is funded by advertising rather than subscriptions.
Are my PNG files uploaded to a server?: No. PNG to WebP runs entirely inside your browser using WebAssembly, so the file never leaves your device. You can even disconnect from the internet after the page loads.
Will converting to WebP reduce the quality?: Expect a much smaller file. WebP re-encodes the content and drops information it judges imperceptible, which is exactly why the result is a fraction of the PNG original. Keep the PNG master if you may need to edit or re-export later.
Can I convert several PNG files at once?: Yes. Add up to 20 files to the queue, convert them in one pass and download the results individually or bundled into a single ZIP archive.
What is the maximum PNG file size?: Files up to 100 MB each are accepted. Browser-side conversions are limited mainly by your device's memory, so very large video files convert faster on a desktop than on a phone.
Does it work on mobile?: Yes. The converter is built mobile-first and works in Safari and Chrome on phones and tablets. Heavy media conversions are slower on mobile hardware but still run locally.

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