IMAGE FORMAT CONVERSION
PNG to WebP Converter — Smaller Files, Free & Local
Convert PNG to WebP free in your browser. Smaller files that keep transparency, ideal for faster web pages. Runs locally with nothing uploaded.
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Drop a file here or click to choose
Any common image format (JPG, PNG, WebP, AVIF, GIF, SVG…)
Convert a PNG to WebP to shrink the file while keeping both quality and transparency. WebP is a modern format that compresses noticeably smaller than PNG — exactly what you want for faster-loading pages and lighter assets. The conversion runs on a canvas in your browser, so the image never leaves your device.
How much you actually save
The saving depends on the picture. Photographic PNGs — screenshots of photos, textured images — often drop dramatically, because WebP's lossy mode is far more efficient than PNG's lossless storage. Flat graphics with few colours save less, since PNG already compresses those well, but WebP is rarely larger than the PNG.
- Transparency is preserved — WebP has a full alpha channel, so cut-outs survive.
- Every current browser (Chrome, Firefox, Edge, Safari) displays WebP.
- Keep a PNG or JPG fallback only if you must support software that predates WebP.
Frequently asked questions
- Is WebP lossy or lossless?
- WebP supports both. This tool exports the browser's default WebP encoding, which balances size and quality well for typical use. For pixel-perfect archival output, PNG's guaranteed lossless storage is the safer choice.
- Does WebP keep the PNG's transparency?
- Yes. WebP has a real alpha channel, so a transparent PNG converts to a transparent WebP with nothing flattened onto a background.
- Is my PNG uploaded anywhere?
- No — the conversion happens entirely in your browser via the canvas.