Free PNG to WebP converter
Drop PNG files below. Conversion runs on your device — nothing is uploaded. Ideal for web assets that need smaller files without leaving the browser.
Click to choose images, or drag them here
JPG, PNG, WebP, GIF, SVG · up to 50 files · max 40 MB each
How small should files get?
Custom settings activeThe tool finds the highest quality that still meets the target size, and scales down only if needed. Images already under the limit are left unchanged.
How it works
Step 1 · Add files
Drop one or more PNG files into the drop zone above (batch up to 50).
Step 2 · Confirm settings
WebP is pre-selected — tweak quality in Custom settings if you need smaller files.
Step 3 · Download
Download each WebP from the results list, or grab the whole batch as a ZIP.
Why this conversion
PNG is great for sharp UI and transparency, but files are often large. WebP usually makes them smaller while keeping transparent backgrounds. Prefer JPEG only when you do not need transparency and the destination rejects WebP.
About PNG
PNG keeps sharp edges and optional transparent backgrounds. It suits logos, screenshots, and graphics with flat color — but photos saved as PNG are often oversized for the web.
About WebP
WebP is a modern web format that can be smaller than PNG at similar quality, and it supports transparency. It is widely supported in browsers.
Good for
- UI screenshots, logos, and icons that need a smaller file without losing a transparent background
- Replacing bulky PNG assets on a site that already serves WebP
- Batch-exporting a folder of PNG graphics before a deploy
What to watch for
Keep a PNG master if a printer, App Store listing, or old CMS rejects WebP. Photo-like PNGs often shrink more as JPEG when you do not need transparency.
Why convert PNG to WebP here instead of uploading
| Compared to | Compress Locally (this site) | Typical upload tools |
|---|---|---|
| Conversion | PNG to WebP runs on your deviceYes — | File is sent to a converter serverNo — |
| Privacy | Original and result never leave the browserYes — | Uploads may be logged or cachedNo — |
| Batch work | Batch convert several files, then download a ZIP — no upload waitYes — | Free tiers cap batch size; ZIP download often needs signupNo — |
| Formats we skip | No HEIC/RAW/video encode — JPG, PNG, WebP, GIF, SVG in; JPG/PNG/WebP outVaries — | May accept more exotic formatsYes — |
Frequently asked questions
Does PNG to WebP keep transparency?
Yes for typical WebP output with alpha. If you later switch output to JPEG, transparent areas become white — use PNG or WebP when you need a cutout.
Are my PNGs uploaded?
No. Conversion runs entirely in your browser. Image bytes never leave your device — see the Privacy page for how local processing works.
Can I convert many PNGs at once?
Yes. Add several files, wait for processing, then download each WebP or grab all results as a ZIP from the results list.
When should I keep PNG instead?
Keep PNG if a form only accepts PNG, or you need a high-quality master. For websites that support WebP, WebP is usually smaller at similar quality.
Will quality look worse?
At sensible quality settings, WebP often looks similar to PNG while using fewer bytes. Use the compare view on any file to check before you download.