Blotti automatically masks supported PII and credentials across native apps and browser windows, then gives you a separate protected window to share. Processing stays on your Mac.
A one-line email gets you on the launch list. No account required.
Mac app in development · macOS 14 or newer
Blotti sits between the source you choose and the window your meeting app sees. The original source never becomes the protected preview.
Select one display or one application window to protect.
Apple Vision recognises text, then Blotti applies your local masking policy.
Choose only “Blotti Share — Share This Window” in your meeting app.
Blotti inspects captured pixels, so the same local protection path can cover supported text in native apps, terminals, documents, dashboards, and browser windows.
Structured protection
Blotti looks for supported emails, phone numbers, payment cards, IBANs, national identifiers, IP addresses, and credential patterns such as API tokens, AWS keys, and JWTs, then covers matches with solid padded masks.
App and window blocking
Choose applications or individual windows to remove before Blotti receives the pixels. It is useful for chat, password managers, customer records, and anything that should never enter the protected view.
Strict mode
For high-risk moments, Strict mode hides all recognised text, not only known PII patterns. Text that OCR does not recognise cannot be masked, so review the preview before sharing.
Custom regex hiders
Create locally saved rules that apply to every capture. Blotti masks the whole regex match within each Vision-recognised text region; tester text stays on your Mac and is not saved.
Blotti version 1 has no application account, advertising, capture-content backend, or custom-rule sync. OCR, custom-regex testing, and redaction happen locally. Saved hiders remain in the app container, and tester text is not saved. Only a newly rendered, protected image can reach the share window. If the capture or protection pipeline cannot continue safely, Blotti stops instead of publishing an unprocessed frame.
Try the full protection path before deciding whether advanced sharing controls fit your work.
Useful protection for everyday screen sharing, with no Blotti account.
Apple shows the local price and any introductory offer for which your Apple Account is eligible.
Localised pricing, billing periods, and introductory-offer eligibility are shown by Apple before purchase. Purchases, renewals, cancellation, and refunds are handled through the Mac App Store.
| Protection capability | Free | Pro |
|---|---|---|
| Structured PII and credential protection | Included | Included |
| Display or individual-window source | Included | Included |
| Hide macOS notifications and Notification Center | Included | Included |
| Protected share preview | Included | Included |
| Smooth changed-region performance mode | — | Included |
| Block selected applications | — | Included |
| Block selected individual windows | — | Included |
| Strict all-recognised-text mode | — | Included |
| Global custom regex hiders | — | Included |
| Saved custom hiders and application policies | — | Included |
Good privacy tools are candid about their boundaries.
Visit supportNo. Version 1 performs capture, OCR, detection, and masking locally on your Mac. It has no Blotti account or screen-content backend.
macOS requires that permission before Blotti can read the display or window you ask it to protect. You can revoke it at any time in System Settings.
Blotti creates a separate protected window for meeting apps to share. The meeting app must support individual-window sharing; inspect the preview and run a quick check before sensitive meetings.
No. Blotti is a native macOS privacy layer. It examines the pixels from the display or window you choose, so supported text can be protected across native applications and browser windows, not only inside webpages.
Blotti is designed to stop fail-closed instead of publishing an unprocessed frame. The last safely protected frame may remain visible while capture stops.
Apple administers eligible introductory offers, purchases, renewals, cancellation, and refund requests through the Mac App Store. Blotti uses StoreKit to verify access locally and includes restore and manage-subscription actions.
Every enabled Pro rule applies globally to all captures and masks the whole match within one text region recognised by Vision. Rules stay in the local app container, and tester text is not saved. Regexes cannot match text Vision misses or joins split across separate OCR regions, so test with synthetic text and inspect the preview.
Blotti reduces accidental disclosure risk. OCR and pattern detection can miss content, so it is not a guarantee of anonymisation or safe handling of every secret.