Bū tools

Help

How the app works.

Free, no account, nothing is sent: it runs in your browser, even offline.

Related tools

• Resolution · Sizes, ratios and formats
• Letterbox · Cinema black bars, as a PNG
• Safe zones · Social media safe areas
• Crop for social · One image in every social format, with a focal point
• Straighten · Level the horizon, fix perspective, measure on a photo
• Caption · Caption length per network, the “more” cut, and threads
• Test pattern · Test patterns for your screens
• Blend modes · How blend modes mix layers

All tools · Français