PNG to WebP Free Online
Convert PNG to WebP without uploading — better compression for the web. No sign-up, runs entirely in your browser.
Drop your images here
Click or drag · max 100 MB each · conversion starts on upload
Files are processed locally — nothing is uploaded.
How It Works
Simple steps, no installs, no sign-up.
Drop your PNGs
Upload one or more PNG files. Conversion starts automatically.
Images converted
Each PNG is re-encoded as a smaller WebP file.
Download WebPs
Click Download for each file when ready.
The case for PNG to WebP conversion
PNG files are often unnecessarily large — a simple screenshot can easily be 2-5MB as PNG. WebP compresses the same image to a fraction of the size while maintaining excellent visual quality. For web developers and content creators, this conversion is one of the easiest performance wins available.
Even with WebP's lossy compression, the output is visually indistinguishable from the PNG original for most images. And if your PNG has transparency, WebP preserves it — unlike JPG.
When to keep PNG instead
If you're working in a design tool that doesn't support WebP, or if you need guaranteed lossless quality for archival purposes, stick with PNG. WebP is primarily a web delivery format — it's not yet the standard for design workflows or print production.
Why Use Our Tool?
Better compression
WebP offers better compression than PNG for web use.
Instant
Conversion runs in your browser — no waiting.
Private
Your files never leave your device.
100% Free
No watermarks, no sign-up, no limits.
Is it Safe?
Yes. Conversion runs entirely in your browser using the Canvas API. Your files are never uploaded to any server.
Frequently Asked Questions
Yes — free to use with no limits. Convert as many PNG files as you want, no account or payment required.
No — WebP supports transparency just like PNG. If your PNG has a transparent background, the WebP output will preserve it.
No. The conversion runs entirely in your browser using the Canvas API. Your images are processed locally in memory and nothing is transmitted over the network.
Yes. Drop all your PNG files at once. Each one is converted individually and gets its own download link.
WebP supports both lossy and lossless modes. We use high-quality lossy compression by default, which produces files that are visually indistinguishable from the original for most images.
Looking for something else?
Try All Tools →