Free tools · no signup

Free social media header tools

Everything here runs in your browser without an account. Start with the header checker; reach for a full audit only when you need fix coordinates and a saved report.

• Header checkerUpload any header, banner or cover and see what every phone, tablet and desktop profile crops.
• LinkedIn banner previewThe checker preset for LinkedIn profiles and Pages, with the mobile safe band explained.
• Header size calculatorUpload and 2x export sizes in px, inches, cm or mm, one master canvas for several platforms, and a reverse lookup by size.
• Header roastA scored AI critique of your banner: crop safety, text legibility, focal point, message clarity and platform fit.
• Banner headline generatorFive banner headlines sized to your platform's character limit, each previewed with the avatar marked.