Image Tools by brownie.tools by brownie.tools

Compress, resize and convert images to JPG, PNG or WebP on your device. Right-click any image to start. Nothing is uploaded.

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About this extension

Image Tools compresses, resizes, converts, rotates, flips and crops pictures on your device. It runs in the Firefox sidebar. Nothing is sent to a server.

What it does

Compress: make a JPG, PNG or WebP file smaller and choose the quality. JPG files are encoded with MozJPEG, which usually gives a smaller file than the browser's own encoder at the same quality. PNG compression is lossless: the pixels stay exactly the same.
Convert: save a picture as JPG, PNG or WebP.
Resize: set a new width and height in pixels, with the aspect ratio locked or unlocked.
Edit: rotate left or right, flip horizontally or vertically, and crop with a draggable box. Choose a ratio such as 1:1, 4:3, 16:9 or keep the original, or use the keyboard to move and resize the box.
Copy: put the result on the clipboard as a PNG, ready to paste.
Location data: if a JPEG photo contains GPS coordinates, you are warned and can remove them. The picture itself is not changed or re-encoded.

How to use it

Right-click a picture on a web page and choose "Edit image with Image Tools". Or click the toolbar icon to open the sidebar.
Choose a file, drop one on the sidebar, or paste with Ctrl+V or Cmd+V. Files up to 50 MB are accepted.
Pick Compress, Convert, Resize or Edit, then download or copy the result.

Privacy

Processing happens in the browser. Files do not leave the device.
There is no account, no analytics and no ads.
To read a picture you right-clicked, the extension first asks for access to that one site. Site access can be removed in the sidebar settings.
Access to all sites is not requested at install.

Limits

Output formats are JPG, PNG and WebP.
Pictures above 50 MB or 50 megapixels are not opened in the sidebar.
The same functions, plus bulk and phone use, run in any browser at https://brownie.tools/image-tools/

Developer comments

Made by brownie.tools, a collection of free tools that run entirely in your browser. Need bulk compression, HEIC conversion, watermarks or social media sizes? They run the same way on https://brownie.tools/image-tools/ — phone included. Questions or ideas: support@brownie.tools

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