About PrepMyPost

PrepMyPost is a set of free tools for getting social media posts ready: checking captions against every platform’s character limit, resizing one photo for every platform, and more tools on the way.

Every tool runs in your own browser. Your photos and text are processed on your device and are never uploaded to us, so the tools are fast, private and work even on a weak connection.

PrepMyPost is made by Fourlines Agency, a web and social media agency. The tools are free and funded by advertising.

We check platform limits and sizes regularly. If you spot one that has changed, please tell us.