Your AI sees a stand-in. You keep the real thing.

Stand-In swaps names, account numbers and other private details for placeholders before your document goes into ChatGPT, Claude or Gemini. When the answer comes back, it puts the real details back in. Everything happens on your device.

No uploadNo account to tryPDF · Word · Excel
client-intake.pdf
Client: Daniel Okafor[PERSON_1] SIN: 046 454 286[ID_NUMBER_1] Address: 4418 Riverbend Crescent NW[ADDRESS_1] Employer: Northgate Logistics[ORG_1] RRSP: $9,000 to account 4471-302-118[ACCOUNT_1] Daniel[PERSON_1_FIRST]'s spouse started a consulting business in May. Which deductions apply?
Highlighted details never leave your device.
The problem

AI is great with paperwork. Paperwork is full of other people's secrets.

Pasting is a leak

Once a client's tax return or a patient's notes reach a chatbot, you can't take them back, and you may be breaking a confidentiality duty you owe them.

Blacking out breaks the answer

Redact by hand and the AI loses track of who is who. You get vague advice about "the client" and rewrite the answer yourself.

The fixes don't fit

Free extensions only scan typed text. Enterprise tools cost thousands and need an IT department. Small offices are left in between.

How it works

Three steps, and the AI never meets your client.

1 · Drop

Drop in a file

PDF, Word, Excel or plain text. Stand-In highlights every name, ID, account and address it finds. Click anything to keep it visible.

Spouse: Marie-Claude Okafor
Email: d.okafor@example.ca
2 · Ask

Paste the masked copy

Each detail becomes a consistent tag, so the AI can still follow the people and accounts in your document.

Spouse: [PERSON_2]
Email: [EMAIL_1]
3 · Restore

Get the real answer back

Paste the AI's reply into Stand-In. The tags turn back into real names and numbers, ready to send.

Send the request to d.okafor@example.ca and confirm with Marie-Claude Okafor.
Compare

Built for the gap everyone else skips.

Stand-InFree browser extensionsEnterprise DLPRedacting by hand
Reads PDF, Word and Excel filesYesTyped text onlyYesSlow
Puts real details back in the answerYesSomeRarelyNo
Locked key to restore days laterYesNoNoNo
Your document stays on your deviceYesUsuallyOften routed through a vendorYes
Audit entry for your filesYesNoYesNo
Health, legal and HR detection packsYesNoYes—
Who it's priced forOne person to a 50-person officeFreeLarge companies, sales call requiredYour time
Who it's for

Anyone who handles someone else's details.

Accountants & bookkeepers

Summarize returns, ledgers and bank statements without exposing SINs, SSNs or account numbers.

T4 · W-2 · GL exports

Lawyers & paralegals

Draft from contracts and pleadings while party names and file numbers stay with you.

Leases · affidavits · court files

Clinics & therapists

Turn notes into letters and summaries without patient names or health numbers going out.

Referrals · chart notes

HR & managers

Write reviews and policy answers from real records, with employee IDs and pay kept private.

Reviews · offer letters

You, at home

Ask AI to explain a medical bill, insurance letter or lease without handing over your identity.

Bills · forms · statements
Our privacy promise

We built it so we can't see your documents, even if we wanted to.

No servers read your files. There's nothing for us to store, sell, train on or lose in a breach.

Pricing · USD

Less than one billable hour a year.

Free

$0
  • Paste text, any length
  • Core detection: names, contact, IDs, cards, accounts
  • Restore answers in the same session
Start free
Most popular

Pro

$9 / month

or $79 a year

  • PDF, Word and Excel files, including scans
  • Health, legal and HR packs
  • Locked keys to restore later
  • Browser extension and mobile apps
Get Pro

Office

$15 / user / month

3-user minimum, billed yearly

  • Everything in Pro
  • Shared "always mask" lists for client names
  • Exportable audit log
  • Firm-wide settings and priority support
Talk to us

Founding member: $99 once, Pro for life

For the first 500 people. Save your spot and we'll email you once when Pro opens. No payment now.

On your phone

Share a document to Stand-In, then to your AI.

On iPhone and Android, Stand-In sits in your share sheet. Share a PDF or photo of a form, get a masked copy, and send it on to ChatGPT, Claude or Gemini.

  • NowInstall to your home screen. Works offline, and reads photos of forms
  • NowAndroid: share a file straight to Stand-In
  • NextiPhone app with share-sheet support
FAQ

Questions people ask first.

Does my document ever leave my device?

No. Stand-In reads and masks the file on your computer or phone. Only the masked copy you choose to paste goes to your AI tool.

Does it catch everything?

No tool does. Stand-In catches structured details like ID and account numbers very reliably, and flags likely names for you to check. Always look over the highlights before you send.

Which AI tools does it work with?

Any of them. The masked copy is plain text, so it works with ChatGPT, Claude, Gemini, Copilot or anything you can paste into.

What if I close the page before I restore the answer?

Save a locked key first. Paste it back in later with your passphrase and Stand-In restores the answer, even without the original file.

Does this make me compliant with HIPAA, PIPEDA or GDPR?

It helps you send less personal information, which is what those rules ask for, but no tool makes you compliant on its own. Check your firm's policies and your regulator's guidance.

Why pay when free extensions exist?

Free extensions scan what you type. Stand-In reads whole PDFs, Word files and spreadsheets, restores the real details in the answer, and keeps a locked key and audit entry for your records.

Use AI on real work without giving it real names.

Try Stand-In free