Redaction
Redaction produces a separate file. The original capture in your library is never modified, so redacting is not a decision you can regret.
Redact a capture
Open a capture in the Library and choose Redact. Drag a region over anything that shouldn’t be shared, then choose blur or a black box.
Black box is safer. Blur can, in principle, be reversed on text that was large and predictable — if what you’re covering is a credential or a client’s name, use the black box.
Detected secrets
Screenshot Inbox flags API-key-shaped strings and email addresses when it reads a capture. In the redaction editor these can be turned into regions in one click, so you don’t have to spot them yourself.
Treat it as a helper, not a guarantee. It catches things that look like secrets; it cannot know that a particular project name is confidential. Check the result before you share it.
Recipes
If you redact the same areas repeatedly — a sidebar with a client name, a header with an account number — save the set of regions as a recipe and apply it to other captures.
What you get out
A new image file alongside the original. Copy it, drag it out, or export it. The original stays in your library, unredacted and searchable, and the redacted copy is what leaves your Mac.
Before posting a screenshot publicly
A short checklist that has saved people real embarrassment:
- Filter your library by sensitive content to see what the app noticed.
- Look at the whole image, not the part you’re pointing at — menu bars, tab titles, notification banners and the Dock all leak things.
- Check the window title and the browser URL bar.
- Redact with black boxes, not blur.
- Look at the exported file itself before uploading it.
Didn't answer it? Write tosupport@screenshotinbox.com — one person reads it, and questions that land here twice become a new page.