Download free

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.

LocalGuard live dashboard and per-event logs
Live dashboard + per-event logs (Pro) 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.

Access

API keys. AWS. GitHub tokens. JWT. PEM. Whoever has them walks in as you.

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 Free forever for core secrets

See it happen

Same prompt. Three outcomes.

Toggle Off, Free, and Full. Watch what still leaves.

Off: raw prompt, secrets visible
Your prompt
What would leave

            
Free is the proof engine. Full is Pro: when the data is not yours to gamble with.

Pricing

Free proves the leak. Pro protects what you cannot lose.

Free
€0 forever

See what you already send.

  • API keys
  • AWS keys
  • JWT / Bearer
  • PEM
  • GitHub tokens
  • Crypto wallets
  • IBAN
Download free

One machine. No account required to start.

One machine
Pro
€49 / year

When the data is not yours.

  • Everything in Free
  • Passwords (including in URLs)
  • Credit cards
  • Emails
  • Phones
  • On-device AI for names and places
  • Live dashboard + per-event logs
  • Priority support
Unlock Pro

Stripe · EUR · €49/year. No monthly plan on this page.

Free shows you the problem. Pro is for client data, payments, and anything that cannot become a story.

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.
API keys, AWS keys, JWT/Bearer, PEM, GitHub tokens, crypto wallets, and IBAN. That is the forever-free set.
When you handle passwords, cards, emails, phones, or names and places that should not leave. Pro also adds a live dashboard, per-event logs, on-device AI for names/places, and priority support. One machine. €49/year.
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. Free shows you what left. Pro stops the classes of data you cannot afford to explain later.

Stop the next leak before it leaves.

Or Unlock Pro when Free is not enough.