▓ZLAUDER
GitHubDownload Free
open source · local-first · zero retention

Code Securely With AI

Zlauder masks credentials and sensitive information before your prompt leaves your machine— and unmasks the AI's response locally. You work exactly as before. The AI never sees your secrets.

Download FreeZlauder Enterprise →
terminal — zlauder activeshield on
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Vibe coding is fast.
Leaked secrets are the tax.

Tools like Claude Code and Replit let you build at unprecedented speed — but every prompt you send can carry API keys, passwords, connection strings, and customer data to a third party, with no assurance against future unintended use or breaches.

Properly cordoning off sensitive information slows you down. So most people don't. Zlauder eliminates the trade-off: full speed, zero exposure.

API & SSH keys
pasted into prompts to debug deploys and integrations
Passwords & connection strings
shared so the AI can wire up your database
Customer data & PII
embedded in logs, fixtures, and error messages

How it works

Not zero data retention — zero data access. The AI never had your secrets to begin with.

01
Detect
Zlauder scans every outbound prompt for credentials and sensitive information using prebuilt rules — API keys, SSH keys, passwords, and more.
02
Mask locally
Secrets are swapped for opaque tokens before the prompt leaves your machine. The lookup table never leaves your computer — it's only accessible by you.
03
Unmask the response
If the AI's response contains a masked token, Zlauder swaps the original back in before you see it. You interact with your tool exactly as before.
your machine: secret ⇄ token  │  the wire & the AI: token only

Antivirus keeps harmful programs out.
Zlauder keeps your data in.

Like antivirus, Zlauder is a local security layer that sits between your important information and the programs you use — without compromising how they work.

Basic is free. Forever.

Open source for individuals. Managed and customizable for organizations.

Zlauder Basicfree · open source
For individual developers who want their credentials kept local.
  • ✓Prebuilt rules for common credentials — API keys, SSH keys, passwords
  • ✓Automatic mask / unmask, fully transparent to your workflow
  • ✓Lookup table stays on your machine, accessible only by you
  • ✓Free download, auditable source
Download Free
Zlauder Enterprisesubscription · managed
For teams and organizations that need custom masking, auditing, and assurance.
  • ✓Custom rules beyond credentials: PII, customer data, even code
  • ✓1–2 hour guided setup with our team, or fully managed service
  • ✓Live auditing — log exactly what was sent vs. what was masked
  • ✓Permissioning, software updates, and email support included
Talk to us →

Frequently asked questions

Share keys freely.
The AI never had them.

Download Zlauder BasicExplore Enterprise