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Maskline home

Runs on your device

Use AI without exposing sensitive data.

Maskline hides names, numbers and other private details before your text reaches an AI tool, then puts them back in the answer.

You write

Summarize the visit for Maria Delgado, born 03/14/1961, record 48213377. Call her at (555) 010-0142.

AI sees

Summarize the visit for [PERSON_1], born [DATE_1], record [ID_1]. Call her at [PHONE_1].

4 details masked on this device

Three steps. A few seconds.

  1. 01Mask

    Paste your text. Private details become placeholders.

  2. 02Ask

    Use the masked text in any AI tool you like.

  3. 03Restore

    Paste the answer back. The real details return.

Private by design

We can't read your text.

Everything happens in your browser. Your text is never sent to us.

on-device
Detection runs on your computer.
offline
Works with the internet switched off.
encrypted
Saved history is locked on your device.

What it catches

  • Names
  • Addresses
  • Phone numbers
  • Emails
  • Dates
  • ID numbers
  • Financial details
  • Passwords and keys

Plus any words you add yourself.

Where it works

  • Web appAvailable
  • Browser extensionComing soon
  • Desktop appPlanned

Proof for teams

  • Names masked128
  • ID numbers masked64
  • Passwords masked9

Sample report. Counts only, never the text.

Mask it first. Then ask anything.

Get started free