PNG to WebP — Free, in Your Browser
This is the best size win of the pair: WebP stores transparency *and* compresses harder than PNG, so logos, icons, UI screenshots and product cut-outs get 30–50% smaller while keeping the alpha channel intact.
Image Converter
JPG ↔ PNG ↔ WebP — 100% local
Why convert PNG to WebP
This is the best size win of the pair: WebP stores transparency *and* compresses harder than PNG, so logos, icons, UI screenshots and product cut-outs get 30–50% smaller while keeping the alpha channel intact. It is the default swap for web asset pipelines.
The output behaves like your PNG everywhere that matters — transparency, sharp edges, text — just with a lighter payload. If your tooling predates 2018, keep the PNG as the fallback and ship the WebP as the primary.
How to do it (3 steps)
- Load your PNG — read locally, never uploaded.
- Select WebP output.
- Download — same transparency, typically 30–50% smaller.
Technical note
A 1.2 MB UI screenshot PNG commonly lands at 400–600 KB as WebP; a 400 KB logo PNG often drops below 200 KB. The alpha channel is preserved exactly — nothing is flattened, unlike the JPG route. If you see a quality option, 80–90% is the sweet spot for graphics with text and thin lines.
The mistake worth avoiding
The common mistake is the reverse of the usual one: converting a small, already-optimised PNG and expecting a big win. A 30 KB logo PNG might only drop to 22 KB as WebP — real, but not transformative. Where this conversion pays is volume: a theme with two hundred flat-graphics PNGs at 50–300 KB each routinely halves its image payload, and that is a site-wide speed change, not a per-file tweak.
FAQ
- Is transparency kept? Yes — WebP supports alpha, and this converter keeps it. No white box behind your logo.
- Why not just keep the PNG? You can — but if the image goes to a browser, WebP gets you the same image with a smaller download.
- Is anything uploaded? No. The entire conversion is local to your browser.
- Does WebP keep my text as sharp as PNG? At quality 90 or above, yes — edges and anti-aliased text survive the round trip. Below 70 you are chasing bytes, and fine text starts to fuzz; for graphics with small type, stay at 85 or higher.
Image Converter (all formats) — full tool →