Need a WEBP instead of a PNG? This free converter turns your PNG files into WEBP right in your browser — no uploads, no account, and no software to install. Everything below explains how it works, what changes when you convert, and how to get the best result.
How to convert PNG to WEBP
- Add your PNG files above — drag and drop, click to browse, or paste. Nothing is uploaded.
- Each file is decoded and re-encoded to WEBP on your device, right in the browser.
- Download each WEBP individually, or grab the whole batch as a single ZIP.
Why convert PNG to WEBP?
PNG is a good fit for graphics, screenshots, logos, and editing, but it isn’t always the right choice when you need to share, upload, edit, or archive an image. Converting to WEBP gives you a file that’s better suited to those jobs.
What you gain with WEBP:
- Small file sizes
- Transparency support
- Great for websites
Because WEBP uses compression, the converted files are usually smaller than the PNG originals.
PNG vs WEBP at a glance
| PNG | WEBP | |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Best for | Graphics, screenshots, logos, and editing | Fast-loading website images |
What is Portable Network Graphics (.png)?
PNG (Portable Network Graphics) is a lossless format built for the web and for graphics work. It records every pixel exactly, supports clean transparency, and opens everywhere JPG does.
PNG uses DEFLATE, a lossless compression algorithm, so re-saving never degrades the image. It supports a full 8-bit alpha channel for smooth transparency and up to 24-bit color, which is why it is the go-to for anything with sharp edges or text.
What is WebP (.webp)?
WebP is a modern image format from Google, designed for the web. It offers both lossy and lossless modes, supports transparency and animation, and produces noticeably smaller files than JPG or PNG at similar quality.
WebP's lossy mode is based on VP8 intra-frame coding, while its lossless mode uses a dedicated predictor-based algorithm. Both modes support an alpha channel, and every current major browser can display WebP natively.
When WEBP is the right choice
WEBP is a strong pick for:
- Fast-loading website images
- Web graphics that need transparency
Quality and file size
WEBP is a lossy format, which keeps files small. Our converter defaults to high quality, and you can fine-tune it with the quality slider — 90–95% looks identical to most eyes while shrinking the file. Because WEBP uses compression, the converted files are usually smaller than the PNG originals. Need a specific file size instead? Try our compress-image tool.
Is it private?
Yes. Everything runs locally in your browser, so your PNG files are never intentionally sent to a server. Read more on our privacy page, or see whether converting images online is safe.
Frequently asked questions
Is this PNG to WEBP converter free?
Yes. It’s completely free with no signup, no watermarks, and no per-file limits beyond sensible batch caps that keep your browser responsive.
Are my PNG files uploaded to a server?
No. Conversion happens entirely in your browser using WebAssembly and your device’s own image tools, so your files are never intentionally sent to a server.
Does converting PNG to WEBP reduce quality?
WEBP is a compressed format, so you can trade a little quality for a smaller file using the quality slider. At 90–95% the difference is invisible for most images.
Will converting to WEBP keep transparency?
Yes. WEBP supports an alpha channel, so transparent areas in your PNG files are preserved. If you’d rather flatten them onto a white background, you can turn transparency off in the settings.
Can I convert multiple PNG files at once?
Yes. Add up to 50 files per batch, convert them together, and download them individually or as a single ZIP.
Does the PNG to WEBP converter work on a phone?
Yes. It runs in any modern browser — Chrome, Edge, Firefox, and Safari — on Windows, macOS, Android, and iPhone or iPad. Because it works on-device, you can convert straight from your phone’s photo library.
Is there a file size limit?
You can convert files up to 100 MB each. Because everything runs in your browser, very large files depend on your device’s available memory.
