Your prompts,
never exposed.

Blur redacts sensitive data before it reaches ChatGPT, Claude, or Gemini. Detection runs entirely in your browser. Under 10ms.

Free plan available · No credit card required

chatgpt.com
Blur
ChatGPT

I'll help you draft that clinical update. What specific information would you like to include?

Protection Active
Ask anything

Compatibility

Works wherever your team uses AI.

ChatGPTchatgpt.com
Claudeclaude.ai
Geminigemini.google.com

How it works

One prompt, protected end to end

Follow a real prompt through Blur — from the first keystroke to what the AI actually receives.

Step 01

Type like you always do

Blur runs inside ChatGPT, Claude, and Gemini. As you type, it scans your prompt locally and the floating pill keeps a live privacy score — nothing leaves your browser.

ChatGPT
chatgpt.com

Draft an update for Sarah Johnson at sarah@google.com about patient progress

Scanning locally
Privacy Score: 72%2
Step 02

Click the pill to review

Every detection is listed with its severity — here Blur caught a patient’s name and email. Financial IDs, health details, and a dozen more categories are covered the same way.

Blur
2 Sensitive Items Found

Review and protect your information before sending.

NameSarah Johnson
Mask
Emailsarah@google.com
Mask
Mask all detections
Step 03

Mask everything in one click

One click swaps real values for safe placeholders that keep your prompt’s meaning intact. Prefer precision? Mask items individually instead.

ChatGPT
chatgpt.com

Draft an update for [name] at [email] about patient progress

2 items masked
Privacy Score: 100%
Step 04

Send with confidence

The model only ever sees placeholders. The original values stay on your device — Blur never stores or transmits them.

What the model receivesProtected

Draft an update for [name] at [email] about patient progress

Sarah's real name and email never left this device.
Works inChatGPTClaudeGemini

Detection

Four categories of sensitive data, caught in real time

SSNs, credit cards, PHI, contact data, names, and 20+ other PII patterns. Aggressive Mode is recommended for HIPAA, PCI, and SOX-adjacent workflows.

Financial & IDs

SSN: 123-45-6789
Card: 4111-****-****-1234

Contact & Addresses

sarah@example.com
+1 (415) 555-0123

Names & Entities

Sarah Johnson
Sutter Health

Sensitive Attributes

Type 2 Diabetes
DOB: 08/12/1984

Built for regulated teams

Used by teams that can't afford prompt leaks.

Blur is designed for organizations where a single exposed identifier creates real regulatory or liability risk.

Legal

Keep client names, matter details, and privileged context out of model traffic. Detection runs locally before the prompt reaches any LLM.

Detections2 found
Client nameR. Daniels
Mask
Matter numberCustom ruleNo. 2024-CV-0118
Mask
Privileged work product stays on the device
Detection categories

Healthcare

Mask PHI including names, dates of birth, and health terms before a prompt is sent. Aggressive Mode is recommended for HIPAA-adjacent workflows.

Sensitive AttributesOrg policy
Financial & IDsOrg policy
Required for every member — enforced from the team dashboard.
HIPAA-aligned detection with Aggressive Mode
PHI detection

Government & regulated

Deploy through Chrome Enterprise with ExtensionInstallForcelist. Zero-data architecture keeps prompt content on the user’s device end-to-end.

Chrome Enterprise policy
"ExtensionInstallForcelist": [
  "<blur-extension-id>"
]
Installed and pinned for the whole fleet — users can't remove it.
Force-install via Chrome Enterprise policy
Security overview

Team Management

Deploy to your whole org, from one dashboard.

Force-install through Chrome Enterprise, invite teammates by email, and let seat-based billing prorate itself as the team changes.

Invite teammates by email with owner, admin, and member roles
Force-install via Chrome Enterprise ExtensionInstallForcelist
Seat-based billing, prorated automatically as the team grows
Team Members
4 / 10 seats
MD
Maya D.
maya@company.com
Owner
CR
Carlos R.
carlos@company.com
Admin
PS
Priya S.
priya@company.com
Member
JT
James T.
james@company.com
Member
Est. monthly: $53.32

Pricing

Predictable seats, billed when teammates join.

Blur charges only for active members. Seats are prorated automatically and synced to your Stripe subscription whenever a teammate accepts an invite.

Free

Free plan for everyone. Create an account and mask names, emails, and phone numbers on every supported AI site.

$0
forever
  • Masks people's names, email addresses, and phone numbers
  • ChatGPT, Claude & Gemini compatibility
  • Settings sync across every supported site
  • Free account, no credit card required
Install Extension
Most Popular

Individual

Solo paid plan for power users. All detection, allowlist, and personal analytics.

$3.33
/mo
per month, billed yearly

$5 when billed monthly

  • Every detection type across all 4 categories
  • Adds locations, links, companies, schools, Financial & IDs, Sensitive Attributes
  • Aggressive Mode (also flags dates, IDs, and rare patterns)
  • Smart Placeholders with realistic replacement names
  • Personal allowlist — skip detection on your own terms
  • Personal analytics: redactions, categories, top rules
Upgrade in extension

Enterprise

Team plan with admin dashboard, shared rules, and per-member analytics.

$13.33
/mo
per seat / month

$20 when billed monthly

  • Everything in Individual, per seat
  • Shared admin dashboard (team, billing, policies)
  • Role-based access control (owner, admin, member)
  • Shared custom rules, allowlist, detection policies
  • Per-member analytics and alerts
  • Priority customer support

FAQ

Common questions

Keep your team's prompts private.

Deploy Blur in minutes. No code changes, no workflow disruption.