Free email production tools

Small, free tools for the checks every email goes through before it's sent. They run in your browser: nothing you paste or choose is uploaded.

• Gmail clipping checker

  Paste an email's HTML to see how close it is to Gmail's ~102 KB clipping limit, and what to trim first.

• Email image size calculator

  The pixel size to export an email image at for sharp results on phones, checked against Klaviyo's guidance.