Private pilots open
Give AI the work.Keep the names.
PriGate swaps names, clients, IDs, account numbers and amounts for believable doubles before your text reaches ChatGPT, Claude, Copilot or Gemini. The answer comes back with the real names in. All on your own computer.
Dear Ms. SharmaUnderhill,
Brightline Logistics LtdHarborview Freight Ltd will pay $2,400,000$1,700,000 to settle OkaforPenrose v. BrightlineHarborview. Daniel OkaforJoaquin Penrose accepts if the confidentiality clause is narrowed.
Please wire it to GB82 WEST 1234 5698 7654 32GB94 CKFW 8577 2149 1292 10 by 30 April 202613 Sept 2025 and call him on +44 20 7946 0958+44 10 3011 3715.
Tobias WhitcombeIvo Hollins, Quill Partners LLPFairhaven Partners LLP
Live demo · runs in this page
Type a name. Watch it get a double.
Pick a sample or write your own. PriGate masks as you type, a pretend AI answers using only the doubles, and the real names come home. Nothing you type leaves this page.
See the red one? A booby-trapped document can ask an AI to slip a name into an image link, so the name leaks the moment the answer is shown. PriGate never puts real names back inside links, so the link only ever gets the double.
Why doubles
Blacking it out is safe. And useless.
Turn the selector. Redaction hides who did what, so the AI can't help. Doubles keep the story whole, so the AI does the work without meeting anyone real.
Daniel OkaforJoaquin Penrose will accept $2,400,000$1,700,000 from Brightline Logistics LtdHarborview Freight Ltd if the clause is narrowed. Call him on +44 20 7946 0958+44 10 3011 3715.
How it works
Spot. Swap. Bring them home.
Three moves, on your own computer, between you and any AI.
01
Spot
It finds people, companies, e-mails, phones, IDs, card and bank numbers, addresses, dates and amounts. Load your client list and nothing on it slips through.
02
Swap
Each value gets a believable double, and the same name always gets the same one. Doubles are picked at random with a secret key, so they carry no trace of the original.
03
Bring them home
The answer comes back with the real names, even while it streams in. Every file PriGate writes is checked first; if anything sensitive survived, nothing is saved.
Where it works
Four ways through the gate.
Same doubles, same vault, whichever way your text travels.
Your files
Word with tracked changes and footnotes, Excel, PowerPoint, PDF and scans, CSV and e-mail. A whole folder shares one set of doubles.
Any AI chat
Copy the masked text into the chat, paste the answer back, and read it with the real names. No setup.
Apps and agents
A local gateway for OpenAI- and Anthropic-compatible tools masks every request and restores every answer, tool calls included.
The browser
Masks what you type in ChatGPT, Claude, Gemini or Copilot before you send it, and warns you if something sensitive is still there.
Who it's for
For people who sign NDAs.
If your work has a client list, a patient list or a payroll, PriGate keeps them out of someone else's logs.
Proof
Measured, not promised.
Share of sensitive values removed from 600 generated test documents, by setting. No ordinary words were masked by mistake in any of them.
These are generated documents with known answers. Yours will differ, so every pilot starts by measuring PriGate on your own files.
Specifications
What's inside.
- Runs on
- Windows, macOS and Linux, on your own computer
- Sent to us
- Nothing. There is no PriGate cloud, and it works offline
- Rule templates
- GDPR, HIPAA and DPDP
- Records
- A tamper-evident audit log and a printable protection report
- Name map
- Encrypted, and opens only with your passphrase
- Languages
- Names in nine writing systems, from Müller to 王小明, and ID numbers from 20+ countries
Questions
Fair questions.
Book a pilot
Try it on your own documents.
PriGate is available through guided pilots. Three quick steps, and we'll reply within two working days.
- 01A short call about your documents, AI tools and rules.
- 02We set PriGate up with your client list and the right regulation template.
- 03A measured pilot on your files, with a report on what it caught.