Use real work data
with AI, safely.
Create a protected copy of customer and operational data before using it with ChatGPT, Claude, or Gemini. Your file stays in the browser.
Protect the identity.
Keep the information.
A single pass, from
detection to safe export.
Detect
Find names, emails, phone numbers, identifiers, and credential patterns inside structured files.
- customer_nameSarah Chen
- emailsarah@northwind.io
- planTeam
- phone+1 415 555 0198
- signup_date2024-03-11
Protect
Replace repeated values with stable aliases, mask partial identifiers, or remove fields that should not be shared.
Export
Download the safe copy with the original columns, rows, and numeric relationships preserved.
See exactly what was protected.
- customer_nameAlias
- emailAlias
- phoneMask
- api_keyRemove
- planKeep
| customer_name | phone | plan | |
|---|---|---|---|
| PERSON_001 | EMAIL_001 | +1 ••• 555 0198 | Team |
| PERSON_002 | EMAIL_002 | +1 ••• 555 0142 | Free |
| PERSON_003 | EMAIL_003 | +1 ••• 555 0217 | Team |
| PERSON_004 | EMAIL_004 | +44 ••• 442 099 | Pro |
Use the safe copy anywhere.
Local by design.
Local processing
The file is parsed in the browser tab you have open. It is never sent to a Data Alias server.
No file retention
Your file and its values are never written to disk, localStorage, or IndexedDB. A refresh clears the session. The only thing ever saved is a rule preset — settings, no data — and only when you choose to save one.
User review before export
Every detected column and protection rule is reviewable before the safe copy is created.
Common questions.
No. Parsing, detection, and transformation all run in JavaScript inside your open tab. Nothing is uploaded to a Data Alias server.
CSV, TXT, XLSX, JSON, PDF, and DOCX files up to 10 MB (PDF is text-layer only — no OCR yet; PDF/DOCX download as an AI-ready .safe.txt extract). XLSX, JSON, PDF, and DOCX are Pro features — free to use during the beta.
No. The Free plan works without any sign-up. Accounts arrive together with Pro — and even then, file processing stays in your browser on every plan.
Pro will be $9 a month ($79 a year) once the beta ends — see the Pricing page. Until then everything, including every Pro feature, is free.
When paid plans launch, your first purchase comes with a 14-day no-questions-asked refund. The full policy is in the terms.
No, and you should distrust any tool that claims it can. Data Alias reduces exposure risk, but no automated detector catches every sensitive value. That is why the review step exists: check the output before you share it.
Yes. The same source value always maps to the same alias within a single session, so joins and repeated identifiers remain analyzable.
Yes. Rules are applied only when you generate the safe copy. You can toggle any column off, change the rule, or reset the session at any time.
No. File contents, column values, and aliases are never logged, and nothing about your file is stored between sessions.