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rethumb

rethumb is a service that creates image thumbnails just by accessing an URL. It's free and host all your thumbnails.


Format Conversion

To convert between file formats use the following request:

http://api.rethumb.com/v1/square/250/format/png/http://images.rethumb.com/image_coimbra_300x300.jpg
This request will return an image in PNG format.

Supported Formats


Our API can convert to an from these formats.

Google WebP format is also available!

Check out our API and Tutorials for more information!

Note: this is a paid feature, you will need to subscribe to a plan, check prices.