ISO8583Studio Download ISO8583Studio
Free and open source under Apache 2.0. Nine simulators and 64 tools for ISO 8583, EMV, HSM and key operations — pick your platform and start testing.
Installers
| Platform | Download | Notes |
|---|---|---|
| macOS (10.14+) | ⬇ Download .dmg | If Gatekeeper blocks the first launch, allow it under System Settings → Privacy & Security. |
| Windows (10+) | ⬇ Download .exe | Approve the Windows Firewall prompt so simulators can open server ports. |
| Linux | All releases → | Run the cross-platform JAR on JDK 11+, or build from source — see the installation guide. |
What's inside
- Simulators — Host, HSM (payShield-compatible), POS, APDU and more: server, client and proxy modes over TCP/IP, RS232 and REST.
- 64 tools — EMV tag & cryptogram tools, PIN block and PVV calculators, DUKPT and TR-31 key tools, MAC generation, converters and validators.
- Local and offline — your keys and test data never leave your machine.
New here? Start with the installation guide or the documentation hub.