Omikuji Tools Image & Video

PNG / JPEG → WebP Converter

Convert PNG and JPEG images into the lightweight, high-quality WebP format right in your browser. Process many files at once — nothing is uploaded to a server.

Features

  • Convert PNG and JPEG to WebP with adjustable quality
  • Batch convert multiple files with drag & drop
  • Optional longest-side resize for web-ready sizes
  • See exact size savings per file at a glance
  • Runs entirely in your browser — images are never uploaded

Ways to Use It

Speed Up Blogs & Sites

Swap PNG/JPEG for WebP and watch page-load times drop. Great for Core Web Vitals and SEO.

Prep Images for Social

Resize and recompress before uploading to platforms with size limits.

Client Deliverables

Shrink files for fast email or chat delivery without losing visible quality.

App & Game Assets

Cut your asset bundle size — transparent PNGs convert to alpha-WebP cleanly.

Privacy

Selected images are processed only in your browser. They are never uploaded to any server.

FAQ

Which formats can be converted to WebP?

The tool accepts JPEG, PNG, WebP and SVG (GIF is not supported).

Can I adjust the quality after conversion?

Yes. Use the quality slider to choose a value from 1 to 100. 80 is recommended for a good balance.

Where are the converted files saved?

Converted files are saved to your browser's Downloads folder.

Are my files sent to a server?

No. All conversion processing happens entirely in your browser. Your image data never leaves your device.

Can I convert SVG to WebP?

Yes — just drop the .svg file in. SVG is vector, so the Resize value is used as the actual output size for the long edge (for photos and other raster images it only ever shrinks, since enlarging them would lose quality). Leave it blank and the SVG's own size is used.
Drop images here
or click to select files (multiple OK · PNG/JPEG)
Select files

Conversion settings

80

Higher = better quality, lower = smaller files (80 recommended)

If set, images are scaled so the longer side fits within this many pixels

Results

Drop some images and your results will appear here.

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