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Convert PNG to WebP Online (Free)
Fastest way to convert PNG images to WebP format. Batch processing supported, 100% private.
JPGPNGWEBPHEIC
⚡ Try with a sample photo
Convert PNG images to WebP format directly in your browser — no upload, no signup, no watermark. WebP is roughly 25–35% smaller than PNG at the same visual quality — and it preserves transparency, so your logos, icons, and cutouts survive the conversion intact. This is the standard move for shrinking page weight on a modern website. The only caveat: don't ship WebP to audiences on very old email clients or pre-2018 Adobe products without a fallback. Drop one file or a whole folder, and the converter produces WebP files you can download immediately.
Why convert PNG to WebP?
WebP is roughly 25–35% smaller than PNG at the same visual quality — and it preserves transparency, so your logos, icons, and cutouts survive the conversion intact. This is the standard move for shrinking page weight on a modern website. The only caveat: don't ship WebP to audiences on very old email clients or pre-2018 Adobe products without a fallback.
About PNG and WebP
PNG is a lossless format with full alpha transparency support. It works in every modern browser, OS, design tool, and document editor, and is best suited for screenshots, logos, icons, UI mockups, and anything that needs a transparent background. WebP is a modern Google-developed format that is roughly 25–35% smaller than JPG or PNG at the same visual quality. It works in all current browsers (Chrome, Firefox, Safari 14+, Edge), but limited support in older email clients, Microsoft Office before 2021, and some legacy CMSes, and is best suited for web delivery where page weight matters and the audience uses modern browsers.
Quality and file size
Both PNG and WebP are lossless formats, so the conversion is mathematically exact — every pixel value is preserved. What changes is how those pixels are stored: about a third smaller than the equivalent JPG or PNG, while PNG files are larger than JPG for photos, very small for flat-color graphics. You get the same visual image in a different (usually smaller) container.
Transparency and backgrounds
Both PNG and WebP support transparency, so any transparent pixels in your source are preserved exactly in the output. Logos, icons, cutouts, and screenshots with rounded corners all convert cleanly — the alpha channel survives the transfer intact.
Privacy: where the conversion happens
The conversion runs entirely in your browser using the built-in canvas encoders. Your PNG files are never uploaded to any server, never stored, and never logged. That matters when you're converting passports, IDs, medical scans, financial documents, or anything else you wouldn't paste into a stranger's web form. Drop in dozens of files at once — there's no per-file count, no quota, and no watermark on the output.
Common ways people use it
Shrink page weight on a modern website
Replace PNG assets with WebP for a 25–35% reduction in image bytes — measurable improvement to Core Web Vitals scores.
Batch-convert a folder in one pass
Select multiple PNG files and pull out a zip of WebP files. No per-file quota, no signup, no watermark.
Frequently asked questions
How It Works
Professional results in 3 simple steps.
1
Upload
Select your photos or videos. Files processed locally.
2
Process
Our powerful engine optimizes your files instantly.
3
Download
Get your optimized files immediately.