Free Payment Crypto Tools.
Decoded.
50+ cryptographic tools, an HSM simulator, and an AI assistant — everything payment engineers need to test, validate, and homologate against the standards. DUKPT, PIN blocks, EMV ARQC, TR-31, ISO 8583 and more, all running in your browser. Built for homologation, never for production data. No account. No payment. No tracking.
Everything you need
Cryptographic Toolkit
50+ tools for PIN blocks, key derivation, MAC generation, EMV scripting, and more.
Open ToolsHSM Console
Full Thales payShield 10K emulation with 111 host commands. Real algorithms, real responses.
Built for homologation.
Not for production data.
KeyLab is a testing tool for engineers validating implementations against payment standards. Here's how to use it — and how not to.
Test data only
Use synthetic test vectors (e.g. PAN 4111111111111111). Never paste production PINs, PANs or live keys — PCI DSS forbids it, and so do we.
Client-side by design
Even your test data stays in your browser. The server cannot see what you compute. You stay in control of what you paste.
Open-source crypto
Built on @noble/curves, @noble/post-quantum and node-forge. Auditable, peer-reviewed. Inspect what runs before you trust it.
Standards-compliant
ISO 9564, ANSI X9.24 (DUKPT), PCI DSS, EMV, TR-31 / X9.143. The specs you already audit, implemented faithfully so you can validate against them.
→ Inspect the source. Run on test data. Validate. Then move it to your audited stack.
ERROR: Outdated Cipher Suite. Please upgrade.
Cluttered. Slow. Expensive.
Annual License: $999/yr + maintenance fees
KeyLab
FAST. SECURE. FREE.
Built by engineers, for engineers.
ERROR: Outdated Cipher Suite. Please upgrade.
Cluttered. Slow. Expensive.
Annual License: $999/yr + maintenance fees
KeyLab
FAST. SECURE. FREE.
Built by engineers, for engineers.
Frequently Asked Questions
Everything you need to know about KeyLab and payment cryptography tools.
Meet the Founder
Thiago Alonso
Founder & Creator of KeyLab
I've spent most of my career deep in the payment security stack — from HSM operations and key management to PCI compliance and cryptographic architecture. After years of working with tools that were either too expensive, too outdated, or simply frustrating to use, I built KeyLab: the platform I wished existed when I started.
KeyLab is built by someone who actually uses these tools daily. Every feature comes from real-world experience, not assumptions.
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