Convert images
PNG, JPG, and WebP. Files are processed locally in your browser - nothing is uploaded.
About this tool
Convert images between JPG, PNG and WebP without uploading anything. WebP can be 25-35% smaller than JPG at the same visual quality, which adds up fast across a whole site or photo library; PNG is the right pick when you need lossless quality or transparency.
The conversion is done by the browser's native image encoder, the same one used when you save an image from a webpage or paste a screenshot into an email. That means the output is identical to what a desktop image editor would produce - just without the install, the license, or the upload to someone else's server.
All three formats have their place. JPG is the safe, universal default for photos. PNG is the safe pick for diagrams, screenshots and anything with sharp edges or transparency. WebP is the modern default for web use, where its smaller files mean faster pages and less bandwidth, and is now supported by every browser still in active use.
Features
- JPG ↔ PNG ↔ WebP in both directions
- Quality slider for JPG and WebP
- Batch conversion of dozens of files at once
- Download individually or as a single ZIP
- Preserves transparency when both source and target support it
- Strips EXIF metadata when converting from JPG to PNG/WebP
- Works offline after the page loads
How to use it
- Drop your images onto the page.
- Pick the target format.
- If converting to JPG or WebP, set a quality value (80-90 is usually invisible from the original).
- Download the results - individually or as a single ZIP.
Everything happens inside your browser using JavaScript and WebAssembly. Your files are never uploaded to a server, never stored, and never seen by us.
Frequently asked questions
Yes, for anything that lives on the web. WebP gives noticeably smaller files than JPG at the same quality and is supported by every browser still receiving updates. PNG is still best when you need lossless quality or transparency; JPG stays the safe choice for files that will be opened in older or unusual software.
PNG and WebP preserve transparency. JPG does not - converting a transparent PNG to JPG turns the transparent areas into solid white.
No. Once an image has been saved as JPG, the lossy compression has already been applied. Converting to PNG just locks in the result at a larger file size. PNG is only useful if your source is lossless to begin with.
For photos, 80-85 is the sweet spot - the file is roughly half the size of the original with no difference visible to the naked eye. For screenshots or text-heavy images, stay above 90 or use PNG/WebP-lossless to keep edges crisp.