Image format converter

What is the Image Format Converter?

This tool converts an image from one file format to another, between JPG, PNG, and WEBP, right in your browser. Upload an image, pick the format you want to convert it to, and see a live preview and file size comparison before downloading the result.

Everything happens locally using the Canvas API. Your image is never uploaded to a server, so it's fast and private.

How to use it

1. Drop your image onto the upload area, or click it to browse your device.
2. Choose the format you want to convert it to: JPG, PNG, or WEBP.
3. For JPG and WEBP, adjust the quality slider to balance file size against visual quality.
4. Click Convert image to see the before/after file size comparison.
5. Download your converted file.

Choosing the right format

Format	Best for	Transparency	Compression
JPG	Photos, complex images	No	Lossy, small files
PNG	Graphics, screenshots, logos	Yes	Lossless, larger files
WEBP	Websites, general use	Yes	Lossy or lossless, very efficient

JPG is the most widely supported format and works well for photographs, where its lossy compression is hard to notice at reasonable quality settings. PNG is lossless and supports transparency, making it the right choice for logos, icons, and screenshots with sharp edges or text. WEBP is a modern format that typically produces smaller files than JPG or PNG at a similar visual quality, and it's now supported by all current browsers, though it's slightly less universally supported by older software outside the browser.

Why convert between formats?

• Converting a PNG screenshot to JPG to shrink its file size when transparency isn't needed
• Converting a JPG photo to WEBP for a faster-loading website
• Converting a WEBP image to JPG or PNG for compatibility with older software or platforms that don't support WEBP
• Converting to PNG when you need a transparent background preserved

How it works technically

The tool loads your image into an in-browser canvas, then re-exports it using the browser's built-in image encoder for your chosen format and quality setting. This is the same underlying technology used by professional image editing software, running directly on your device.

Frequently asked questions

Will converting to JPG lose my image's transparency?

Yes, JPG does not support transparency, so any transparent areas will be filled with white when converting from a format like PNG that supports it.

Does converting always reduce file size?

Not always, it depends on the source format, the target format, and the quality setting you choose. Converting a highly compressed JPG to lossless PNG, for instance, will typically increase the file size rather than reduce it.

Is WEBP supported everywhere?

All current major browsers support WEBP, but some older software or platforms outside the browser may not, so JPG or PNG remain safer choices for maximum compatibility if you're unsure where the image will be used.

Does this tool change my image's dimensions?

No, only the file format and compression change. To also resize the image, use the Image Resizer tool.