Anonymize sensitive data without it ever leaving your device
DataAnonymiser is a local-first data anonymization tool that detects and redacts PII — names, emails, phone numbers, IDs, addresses — in text and images, entirely on your laptop or your organization's devices. Nothing you process is uploaded, streamed, or sent to us. Review the placeholders, copy the clean output, and use it however you need — pasting into an AI tool is just one of many uses.
Input
Sensitive draft
Local scan
Client: Sarah Mitchell
Email: sarah.mitchell@example.com
Contract renewal: March 18, 2026
Account ID: HX-449-2290-BK
12
Entities
0
Network calls
Output
Copy-ready text
Please summarize the contract sent by [PERSON_1] to [EMAIL_1]. The renewal date is [DATE_1] and the client is [ORG_1].
Residual-risk report
Review- Direct identifiers replaced with stable placeholders.
- Specific date generalized for safer reuse.
- No email, phone, or account pattern remains.
Privacy boundary
The app is useful because the boundary is simple.
User content stays inside the desktop app. Network access is reserved for account activation, signed updates, entitlement checks, and verified processing downloads.
Stays local
Text, images, extracted text, prompts, anonymized output, risk reports.
Allowed online
License activation, billing metadata, update manifests, signed downloads.
Never sent
Raw content, filenames that reveal content, entity maps, clipboard data.
Local workflow
From private input to safe, shareable output in three checks.
Find identifiers locally
Rules and local inference flag names, emails, phone numbers, IDs, dates, locations, and image-derived identity markers.
Preserve meaning with tokens
Sensitive values become stable placeholders such as [PERSON_1] and [ORG_1] so the task still makes sense.
Check residual risk
The output is scanned again before copy, with warnings for rare combinations or remaining direct identifiers.
Text and images
Paste notes, import text, code, or config files, or select screenshots and photos for anonymized text output.
Signed local packs
The public installer stays small. Entitled processing files download after activation and are hash-verified before use.
Copy-safe output
The copy action is scoped to anonymized text only, keeping risk notes and internal findings out of whatever you share next.
Ready to keep sensitive data on your device?
Choose a paid plan, install the desktop app, activate your device, and keep sensitive source material local — for your workflows, your team's, or your organization's.