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Free PNG to WebP Converter

Convert PNG images to WebP — dramatically smaller files, supports transparency. No upload required.

PNG to WebP conversion can dramatically reduce file size — lossless WebP is typically 26% smaller than PNG, while lossy WebP reduces PNG sizes by 60-80% for photographic content. WebP also supports transparency (alpha channel), making it a direct PNG replacement for web use. Conversion runs locally in your browser using the Canvas API.

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Click to select or drag & drop PNG files here

PNG supported · Multiple files · No size limit
1

Select file

Click or drag & drop. Your file stays on your device.

2

Convert instantly

Browser converts locally using Canvas API — no upload.

3

Download result

Instant download. Free, no account needed.

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WebP supports transparency (alpha channel), which makes it a direct upgrade over JPG for transparent graphics. Unlike converting to JPG, which fills transparent areas with white, the PNG to WebP conversion preserves transparency fully. Your transparent PNG logos, icons and graphics will remain transparent in the WebP output while being significantly smaller in file size.

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Why Convert PNG to WebP?

PNG files are often large because of their lossless compression. WebP supports both lossless and lossy compression — converting a PNG to WebP lossless typically reduces size by 26%, and lossy WebP can reduce PNG file sizes by 60-80% for photographic content while preserving transparency (alpha channel).

Frequently Asked Questions

Yes — completely free, no account, no limits.
Yes — WebP supports transparency (alpha channel), making it a direct PNG replacement for the web.
No. Everything runs locally in your browser.
Lossless WebP is typically 26% smaller than PNG. Lossy WebP can be 60-80% smaller for photos.
Yes — select or drop multiple PNG files and all will be converted and downloaded.
The tool uses lossy WebP compression at 92% quality by default, which gives significant size reduction. For lossless output, PNG is still the recommended format.
WebP supports both. This tool uses lossy WebP at 92% quality by default, which gives significant file size reduction. For a true lossless output, PNG remains the best choice for graphics and logos.
All modern browsers — Chrome, Firefox, Safari (14+), Edge, and all major mobile browsers. WebP is now the recommended format for web images by Google.