Aa
Write normally
Use the AI tools your team already knows. No secure portal, proxy, or copy-paste detour.
Safe AI starts
before send.
Limen finds sensitive information in AI prompts, applies your policy, and redacts what should not leave, right in the browser.
Protect your confidential data, private keys, and IPbefore it reaches AI.
● ● ● Protected locally
MESSAGE TO AI
Review the claim for Sam Odeiman, 123 King Street, Toronto, at 416-555-0182. SSN: 078-05-1120. BTC private key: L3cW42nZuPAwiRfvyZwDD3ci2VRvNivbWB325fzfTxzNDUKNMdJe.
5 sensitive items found0.08 sec
SAFE TO SEND
Review the claim for [PERSON_1], [ADDRESS_1], at [PHONE_1]. SSN: [SSN_1]. BTC private key: [BTC_PRIVATE_KEY_1].
Original stays on this deviceReady to send
Privacy for everyday and regulated work
PERSONALVENTURE CAPITALINSURANCEHEALTHCAREGOVERNMENTHOW IT WORKS
Protection that feels
like part of the browser.
Limen sits at the last responsible moment: after your team writes, before sensitive data reaches an AI provider.
⌁
Limen checks locally
On-device detection looks for personal data, credentials, regulated identifiers, and your own protected terms.
↗
Private in both views
Tagged view shows what the AI received. Deciphered view reveals originals only on your device. Switching views never sends private values to the AI.
PRIVACY BY ARCHITECTURE
Your data boundary
should not become
another data risk.
Limen’s core protection runs on-device. Audit events contain decision metadata, not prompt text, detected values, or replacement maps.
On-device detection
Prompts are inspected inside the extension, without routing sensitive text through a Limen cloud.
No remote executable code
A restrictive extension policy keeps the runtime self-contained and easier for security teams to review.
Metadata-only audit trail
Hash-chained events record policy outcomes while excluding the content your team is protecting.
Policy at the destination
Set different controls for approved tools, public AI services, and internal environments.
APPLICATIONS
Move faster with AI.
Keep your boundaries.
Use the best model for the work, whether you are asking about taxes at home or handling regulated information across an organization.
Personal & family
Keep tax documents, Social Security and SIN numbers, addresses, medical information, and financial details out of AI prompts.
Venture & private capital
Keep founder data, diligence notes, cap tables, and deal terms out of public AI prompts.
Insurance
Protect policyholder identifiers, claims details, medical records, and underwriting context at the point of use.
Healthcare
Spot patient identifiers and clinical context before they leave the browser, without sending prompt data to another service.
Government
Apply destination-specific controls to citizen data, internal records, credentials, and protected operational details.
COMPLIANCE-READY CONTROLS
A practical safeguard for your governance program.
HIPAAGDPRSOC 2ISO 27001EU AI ACT
THE SHORT ANSWERS
Questions security
teams ask first.
Does Limen send prompts to a server?+
No. Detection runs locally in the browser extension. The current release has no product backend and loads no remote executable code.
Which AI tools does it support?+
The current release supports ChatGPT, Claude, Gemini, Perplexity, Microsoft Copilot, localhost, and Open WebUI-style interfaces.
Can our organization set its own policy?+
Yes. Teams can configure site-specific modes, severity thresholds, mandatory categories, custom sensitive terms, and managed Chrome policies.
Is Limen a compliance certification?+
No. Limen is a technical safeguard that can support your privacy and governance program. Certification and regulatory compliance depend on your full set of organizational, legal, and operational controls.
READY WHEN YOU ARE