SD Check – The Photographer’s Best Friend

A tiny Mac menubar app for photographers who want to know their SD cards are ready before a shoot.

Insert a card and SD-Check quietly runs through everything that matters — filesystem integrity, write protection, free space, write speed, and how many files are still on it. If something’s wrong, you’ll know immediately. If everything’s fine, you’ll know that too.

What it checks

• Filesystem health — catches corruption before your camera does
• Write protection — spots a locked switch before you’re mid-shoot
• Free space — warns you when there’s not enough room for a session
• Write speed — flags slow cards that will bottleneck burst shooting
• Files on card — reminds you if there are photos that haven’t been backed up yet

Free to download. Runs on macOS 13 and later.