AI Prompt Leak Guard
Add to Chrome

Catch private details before your AI chat sees them

AI Prompt Leak Guard checks what you type into ChatGPT, Claude, Gemini and 13 other AI chats. If a password, ID number or client detail is about to go out, it stops and asks you first.

Add to Chrome Add to Microsoft Edge Add to Firefox

Free, no account needed. Checked on your device, so nothing you type is sent to us. Available for Chrome, Edge and Firefox.

Works quietly while you type

There is nothing to learn. Keep using your AI chat the way you do today.

  1. You type as usual

    Write or paste your prompt in any supported AI chat.

  2. It spots what is private

    Before sending, your prompt is checked on your computer for 50+ kinds of private details.

  3. You decide what goes

    Remove the details in one click, edit them, or send anyway. Nothing leaves until you choose.

Clear, calm and in your control

These are real screens from the extension, shown with made-up details. They show the new look that arrives in the next update.

See exactly what was found

A short notice names each detail, hides most of it, and explains why it matters.

  • Replace details with safe placeholders in one click
  • Preview the change before you apply itComing in the next update
  • Undo for a few seconds if you change your mindComing in the next update
The warning listing a PAN number, an email address and a card number, with buttons to remove them

Know when you are protected

The toolbar button shows whether the page you are on is protected and what was caught today.

  • Turn sites on or off
  • Your history is counts only and stays on your device
  • Pause protection on a site for 15, 30 or 60 minutesComing in the next update
  • Add any website of your ownComing in the next update
The extension popup showing Protected on ChatGPT and this week's activity

Warns about old chats too

Open an earlier conversation that already holds private details and you get clear steps to delete it or start fresh.

A notice saying this conversation already contains sensitive data, with steps to delete it

Checks files before you upload them

With Plus, Word, Excel, PowerPoint and text files are read on your device before they reach the AI chat. A risky file is stopped.

Compare Free and Plus

A notice saying an upload was blocked because the file contains a PAN number and an email address

What it catches

50+ kinds of private details, tuned for India and checked so ordinary numbers are not flagged.

Passwords, keys and logins

Access keys, tokens, private keys and database passwords: anything that would let someone else sign in as you or your company.

Our login is /

Government ID numbers

Aadhaar, PAN, passport, voter ID, driving licence, GSTIN and similar numbers from India and other countries, checked so that random numbers are not flagged.

Her PAN is .

Bank and payment details

Card numbers, bank account numbers, IFSC codes, UPI IDs and IBANs.

Pay to account , IFSC

Health records

Medical record numbers, diagnosis codes and ABHA health IDs.

Patient record needs a summary.

Personal details

Email addresses, phone numbers and other details that identify a person.

Call Priya on tomorrow.

Client and business confidential

Customer record IDs, contract terms, legal privilege, internal plans and words you add yourself, like client or project names.

Draft the renewal terms.

See the full list

Works on the AI chats you use

16 AI chat sites are covered out of the box.

  • ChatGPT
  • Claude
  • Gemini
  • Microsoft CopilotComing in the next update
  • Perplexity
  • DeepSeek
  • Grok
  • Poe
  • Google AI Studio
  • OpenRouter
  • HuggingChat
  • Mistral Le Chat
  • Kimi
  • You.com
  • Meta AI
  • Qwen Chat
  • Character.AI
  • AI developer consolesOpenAI Platform playground, Claude Console workbench, Azure AI Foundry, Amazon Bedrock console, Vertex AI Studio, when you switch them on. Coming in the next update.
  • Your own sitesAdd any website in Settings. Coming in the next update.

Nothing you type leaves your device

A privacy tool should not become another place your data goes. So we built it to work without seeing your words.

  • Checked on your computerYour prompts are never sent to our servers or anyone else.
  • No account for the free planInstall it and you are protected. No sign-up, no email.
  • No ads and no trackingWe do not sell, share or study what you type.
  • Plain about what we usePlus billing uses a few named services, all listed on our service providers page.

Free for everyday use. Plus for work.

Plus adds file checks, ready-made presets for your industry and more control, for INR 99 a month.

See plans and pricing Add to Chrome

Questions people ask

Read all questions

Does anything I type get sent to you?

No. The check runs inside your browser on your own computer. Your prompts, the details it finds and your browsing never reach CandidLoom.

Is the free plan really free?

Yes. Warnings, one-click removal and every built-in check are free, with no account and no time limit.

Which browsers can I use?

Google Chrome, Microsoft Edge and Mozilla Firefox. Install it from your browser's add-on store.

What happens when it finds something?

Sending pauses and a short notice shows what it found. You can remove the details in one click, edit the prompt yourself, or send anyway if your settings allow it.