Redact PII From Screenshots in One Click (No Photoshop or Preview)
Stop hand-drawing boxes in Photoshop or Preview. Auto-detect and blur emails, phone numbers, cards, SSNs and API keys in the page, then screenshot — faster, safer, and you never keep an unredacted original.
The one-click way to redact PII from a screenshot is to auto-detect it in the page and blur it before you capture. A browser extension like BlurFirst scans the page locally, finds emails, phone numbers, credit cards, SSNs and API keys, and blurs them in a single pass — then you take a normal screenshot. No Photoshop, no Preview, no drawing boxes by hand.
The manual route — open an image editor, draw a black box over each value, hope you caught them all, export — is slow, error-prone, and leaves the original unredacted file on your disk. Here’s the faster, safer way.
One click vs. the manual editor grind
| Photoshop / Preview | One-click Scan | |
|---|---|---|
| Steps per screenshot | Open, box each item, export | Click Scan |
| Misses a second instance? | Easy to | Detects all matches |
| Reversible blur risk | Yes, if too light | Strong / opaque |
| Keeps an unredacted original | Yes | No |
| Data leaves your device | Sometimes (cloud editors) | Never — 100% local |
How one-click redaction works
- 1
Open the page
Go to the page you want to screenshot — a dashboard, an export, a record, a log.
- 2
Click Scan
Open BlurFirst and click Scan. It walks the page text locally and blurs every match it finds — emails, phones, cards (checksum-validated), SSNs and API keys.
- 3
Add anything it can’t recognise
Names in free text, photos, or one-off fields don’t match a pattern — box-blur or element-blur those by hand.
- 4
Take the screenshot
Capture as usual. The redaction is already baked into the page, so the image is clean.
What gets detected
- Email addresses and phone numbers
- Credit-card numbers (checksum-validated to cut false positives) and US Social Security numbers
- API keys and secrets — AWS, Stripe, Google, Slack and GitHub tokens, JWTs and PEM private keys
- Not free-text names or faces — blur those manually with a box or element click
Why manual editors are risky for redaction
Beyond being slow, image-editor redaction fails in quiet ways: a light blur or low-opacity box can be reversed, you miss repeat instances of the same value, and the original unredacted file stays on disk and in clipboard history. Detecting and blurring in the page before capture sidesteps all three.