Screenshots ready to post, with your keys already blurred.
Screenshot Tool is a free menu bar app for Mac. Press and drag. The shot lands on your clipboard with a background and rounded corners, and the API keys, emails and phone numbers in it are blurred before it gets there.
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Install Screenshot Tool for me
On your iPhone? Screenshot Tool is a Mac app. Copy the prompt here and paste it on your Mac. Universal Clipboard carries it across.
- Free and open source
- macOS 14 or later
- Apple silicon and Intel
- No network code
One shortcut, then two clicks if you want them
One drag, and the finished shot is on your clipboard.
What you do
What you have
It blurs what looks like a secret.
Blurs
Email addresses and phone numbers. API keys and tokens from OpenAI, Anthropic, GitHub, AWS, Google, Slack and Stripe. Values of settings named like a key, such as
API_KEY=.... Card numbers, and long random strings that look like keys.Leaves readable
Paths, URLs, git hashes, dates, version numbers and IP addresses.
Stays on your Mac
Apple's Vision framework reads the text and Core Image blurs it, both on your Mac. The app has no network code, and no image or text is sent anywhere.
If the blur ever fails, solid grey boxes cover the text instead. A shot with a secret the app found still readable never reaches your clipboard.
The code is on GitHub under the MIT licence. Read the code
Get it running
- 1
Paste the prompt
Your agent clones the code, builds the app on your Mac and opens it. The build uses Apple's Command Line Tools.
- 2
Allow Screen Recording
macOS asks once. Turn on Screenshot Tool in System Settings > Privacy & Security > Screen & System Audio Recording, then open the app again.
- 3
Press Cmd+Shift+2
Drag a region. The shot is on your clipboard and in your screenshots folder. Click the thumbnail in the corner to change it.
Paste this into Claude Code, Codex or Droid
Install Screenshot Tool for me