Data Alias

Security & Proof

What this workspace does with your files, and how to check it without taking our word for it.

Stays in this browser

  • File contents, rows, and cell values
  • Detected values and alias mappings
  • File names and preview data
  • Restored AI results

Working data lives in tab memory and is cleared on reset or reload.

What the server can see

  • Account email, if you sign in (optional)
  • Plan entitlement and payment events
  • Allow-listed product events: counts, durations, format buckets — never contents

There is no endpoint for receiving the files you process.

Storage on this device

Projects & presets
rule configuration only — never file contents or column values.
Alias vault
encrypted with a key derived from your passphrase (PBKDF2 → AES-GCM); unreadable without it, and never sent anywhere.
Usage counter
a single number per month, nothing else.

Verify it yourself

  1. Open your browser's Network panel.
  2. Process a file from upload through export.
  3. Confirm no request carries file contents, file names, or detected values.

You can also load the app once, go offline, and run the whole flow without a connection.

Read the full verification guide →

Data Alias reduces exposure risk but cannot guarantee detection of every sensitive value. Review the result before sharing it.