Convert PNG to WebP in seconds, right in your browser.
Drag in PNG or JPEG files and download smaller WebP or AVIF instantly. Adjust quality, switch to lossless, resize on the fly, and batch dozens of files into a single ZIP — all without your images ever leaving your device.
Drop PNG or JPEG files here, or browse
PNG & JPEG · multiple files · up to 25 MB each · metadata stripped automatically
Tip: paste an image from your clipboard with Ctrl + V
Output format
Your browser can't encode AVIF — falling back to WebP.
Lossless
Pixel-perfect, larger file
Resize (optional) advanced
Aspect ratio is preserved. Leave blank to keep original size.
Conversion complete
Drag the handle to compare original (left) and converted (right).
Recent conversions
Stored locally in your browser. Cleared automatically when you close the tab.
100% private
Files never leave your browser. Conversion uses the local Canvas API.
Genuinely instant
No round-trip to a server. Most images convert in <200 ms.
Quality you control
Drag a slider, toggle lossless, or resize on the fly. You're in charge.
Why convert PNG to WebP?
- 25–80% smaller files at equivalent quality.
- Better Core Web Vitals — improves LCP and SEO ranking.
- Transparency preserved with full alpha-channel support.
- 97%+ browser support across modern devices.
Frequently asked questions
Are my images uploaded anywhere?
No. All conversion runs in your browser using the Canvas API. We never see your files. The optional server fallback only triggers if your browser cannot encode WebP — a small fraction of users.
What's the difference between lossless and lossy?
Lossless WebP keeps every pixel intact — typically 25–30% smaller than PNG. Lossy WebP discards imperceptible detail to reach 60–80% smaller files. Use lossless for logos and graphics; lossy for photos and screenshots.
Is there a file-size limit?
Per file, the converter accepts up to 25 MB. There's no hard limit on the number of files in a batch — practical limits depend on your device's memory.
Does WebP support transparency?
Yes — WebP supports full 8-bit alpha-channel transparency, just like PNG. Your converted file will keep its transparent background.