Access
API keys. AWS. GitHub tokens. JWT. PEM. Whoever has them walks in as you.
Silent Leak Killer
You've already sent it.
One ordinary session. Secrets left your machine for an LLM. Nobody was careless. LocalGuard stops the next ones before they leave.
macOS · Linux · Windows. Installs in about 2 minutes, no licence needed
100% local
Zero telemetry
Under 50ms
Measured session
This is what one session looked like.
Not a lab demo. Not a promise of what "might" leak. Numbers from a real LocalGuard run.
669
secrets caught
138
requests
67%
requests contained secrets
109 MB
scanned
Measured session. Your numbers will differ. The pattern usually does not.
Live activity: which tool sent what, where
Real product screenshot
Another real run: 10 374 values · 896 requests · 1.06 GB
What already left
Once it's in the model, it's out of your hands.
Money
Cards. Wallets. Payment tokens. Quiet theft does not need drama.
Clients
Emails. Phones. Names. Places. Data that was never yours to expose.
Business
The prompt that explains how you work. Competitors and attackers read the same text.
Careful people still leak. LocalGuard exists because careful is not enough.
Local by design
A proxy on your machine. Nothing ships to our cloud. There is no cloud scan.
01
Sit in the middle
LocalGuard runs in your menu bar. AI tools talk through it to model providers.
02
Scan and replace
Secrets become placeholders before the request leaves. All on device. Under 50ms.
03
Restore on the way back
Responses land clean. Your workflow stays intact. The provider never saw the real values.
Written in Rust
Zero telemetry
No cloud scanning
€5 for the first month
See it happen
Same prompt. Two outcomes.
Without a subscription LocalGuard shows what leaves. With one, nothing does.
Your prompt
What would leave
The app starts in detect-only mode, so you see your own leaks before you pay anything.
Pricing
See your leaks for free. Stop them for €5.
LocalGuard
€5 first month
then €49/year + VAT · cancel anytime
- API keys, tokens, private keys, AWS keys
- Passwords, including in URLs
- Cards, IBAN, crypto wallets
- Emails and phone numbers
- On-device AI for names and places
- Answers come back with the real values
- Move to a new computer any time
Stripe · VAT added at checkout · €5 today, €49 after 30 days, then yearly.
Before you subscribe
Detect-only
The app is free to download.
- Shows every secret your AI tools send
- Which tool, which provider, when
- Redacts nothing
Turn protection on from the app whenever you are ready.
Teams, self-hosted and CLI installs: support@localguard.me.
Works where you already work
Point your tools at LocalGuard. Keep shipping.
Claude Code
Cursor
Copilot
ChatGPT
Your own API
Menu bar app for macOS, Linux, and Windows. Written in Rust. Scans stay on your machine.
Questions worth answering
FAQ
No. Scanning runs on your machine. There is no cloud scanning and no telemetry.
LocalGuard runs in detect-only mode: it shows which secrets your AI tools sent, to which provider and when, and redacts nothing. Turn protection on from the app when you are ready.
€5 for the first month, then €49 a year, plus VAT, charged automatically. Cancel any time from the app; protection stays on until the end of the paid period. One computer at a time — activating on a new one moves the subscription.
Redaction is local and built to stay under 50ms. Your tools keep talking to the same providers.
Claude Code, Cursor, Copilot, ChatGPT, and your own API clients. If it speaks HTTP to a model provider through a proxy, you can point it at LocalGuard.
Because ordinary sessions still leak. Detect-only shows you what left. Protection stops it before it leaves.
Stop the next leak before it leaves.
The download is free: until you subscribe, LocalGuard shows what leaks and redacts nothing.