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Image Converter

ImagesFree · Private

Convert images between JPEG, PNG, and WebP formats instantly in your browser. Adjust quality, preview before/after, and download. No upload — 100% private.

Drop an image here, or click to browse

JPEG, PNG, WebP, GIF, BMP, SVG

Why convert images to WebP?

WebP is a modern image format developed by Google that provides superior compression compared to JPEG and PNG. A WebP image is typically 25–35% smaller than an equivalent JPEG at the same visual quality, and supports both lossy and lossless compression as well as transparency (like PNG). All major browsers have supported WebP since 2020, making it the recommended format for web images.

Format comparison

Format	Compression	Transparency	Best for
WebP	Lossy & lossless	Yes	Web images — best all-round
JPEG	Lossy only	No	Photos, gradients
PNG	Lossless only	Yes	Screenshots, logos, pixel art

How to use this image converter

Drop an image onto the upload area or click to browse your files.
Select the output format: WebP, JPEG, or PNG.
For lossy formats (WebP/JPEG), drag the quality slider. 80–85% is usually the sweet spot.
Click Convert. A side-by-side preview and file size comparison appears instantly.
Click Download to save the converted image.

How does it work without uploading?

This tool uses the browser's built-in Canvas API andOffscreenCanvas to decode and re-encode images entirely in JavaScript. No data is ever sent to a server — the conversion happens in your tab, and your images stay private. This also means the tool works fully offline once the page is loaded.

Frequently Asked Questions

How do I convert an image to WebP online?

Drop or select your image, choose WebP as the output format, adjust quality if needed, and click Download. The conversion happens instantly in your browser using the Canvas API.

What image formats are supported?

Input: JPEG, PNG, WebP, GIF, BMP, SVG, and AVIF (browser permitting). Output: JPEG, PNG, or WebP. WebP offers the best file size for photos and illustrations alike.

Does converting to PNG increase file size?

PNG is lossless, so converting a JPEG to PNG almost always increases file size. Use WebP for the best balance of quality and size, or JPEG at 80–90% quality for photos.

Is the quality slider lossy?

Yes. The quality slider affects JPEG and WebP output only (PNG is always lossless). 80% quality is usually indistinguishable from 100% at a fraction of the file size.

Why convert images in the browser instead of a server?

Your images never leave your device, so there is no privacy risk. Browser-based conversion using the Canvas API is also instantaneous for typical image sizes.

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