Real-time vehicle telemetry
Read and clear stored DTCs
Mode 06 on-board test results
Advanced component health diagnostics. See test results before fault codes trigger.
Forward-looking component health trends
Run an analysis to project component wear from recorded snapshots.
Emissions inspection readiness monitors
Check whether your vehicle is ready for emissions testing.
Fault-moment sensor snapshot
Vehicle identification number decode
Record and replay telemetry sessions
Data Logger — click Start Recording to capture live telemetry at 10 Hz. Export sessions to CSV for offline analysis, or load a saved CSV back for playback.
Hardware and application settings
Leave these at defaults for USB. If your Bluetooth adapter drops commands or times out frequently, lower the polling rate and raise the delay first before touching the timeout.
Gnoke OBD2 · v2.5 Professional
A professional offline-first OBD-II diagnostic platform built for
mechanics, enthusiasts, and independent builders
who want full vehicle insight without cloud dependencies.
Real-time telemetry, fault code reading, freeze frame capture,
readiness monitors, Mode 06 diagnostics, and session recording
— all from a single browser tab.
Your data never leaves the device.
No server. No account. No tracking.
Ekong Ikpe
Part of the Gnoke Suite — offline-first tools
for developers, mechanics, retailers, and independent builders.
Built to run anywhere, owned by no one but you.
Running v2.5. Click “Check for Updates” above to compare against the latest GitHub release.
Vehicles: All OBD-II compliant vehicles (1996+)
Adapters: ELM327 via USB Serial, Bluetooth LE, or WiFi
Browsers: Chrome / Edge (Web Serial & Web Bluetooth API)
Offline: Full PWA — works without internet after first load
Free and open source under the
GNU General Public License v3.0.
Use it, modify it, share it — but keep it open.
Commercial use requires explicit permission from the author.
© 2026 Ekong Ikpe — Gnoke Suite