Is WebP better than JPG for photos?

WebP often produces smaller files than JPG at similar quality, making it ideal for web use.

Can I convert multiple JPG files at once?

Yes. Drop multiple files and download them all as a ZIP archive.

1.0 (100%) preserves maximum quality. Lower values reduce file size further; higher values preserve more detail.

Free · Drag & drop · Done in seconds

Image conversion that finishes in your browser — no upload required.

Why Mason Image?

Add images anywhere on the page. Select multiple files and convert them all at once.

No upload queue or waiting. Convert images in seconds, right in your browser.

WebAssembly encoders (MozJPEG, libwebp) compress your images more efficiently than basic browser tools — without sending files anywhere.

No subscriptions, no watermarks, no limits on basic conversions.

Use Mason Image on desktop, tablet, or mobile — anywhere you have a modern browser.

Mason Image processes every file locally in your browser. We never upload, store, or access your images.

How it works

Pick the converter you need from our growing library of image tools.

Drag and drop images or click to select. Add as many files as you need.

Review your file list, adjust quality if needed, then start conversion.

Save converted images individually or download all as a ZIP.

Convert a different format

Need another conversion? Pick formats below and go to the matching tool.

Is WebP better than JPG for photos?: WebP often produces smaller files than JPG at similar quality, making it ideal for web use.
Can I convert multiple JPG files at once?: Yes. Drop multiple files and download them all as a ZIP archive.
What quality setting should I use?: 1.0 (100%) preserves maximum quality. Lower values reduce file size further; higher values preserve more detail.

Related tools

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Convert PNG images to WebP online for free. Reduce file size while keeping transparency support. Processed locally in your browser.

Convert JPG images to PNG online for free. Drop your files, click Convert, and download — fast, private, and processed locally in your browser.

Convert JPG images to GIF online for free. Drop your files, click Convert, and download — fast, private, and processed locally in your browser.

Convert JPG images to BMP online for free. Drop your files, click Convert, and download — fast, private, and processed locally in your browser.

Convert WebP images to PNG for maximum compatibility. Free, fast, and processed locally in your browser.