Supported file formats

Built on a modular importer system: every format becomes one normalized datalog the viewer understands. Nine formats are supported today, with more on the way — we only list a format as supported once it actually works.

CSV datalogs ✓ Supported

Comma-separated logs from a wide range of tools. Delimiter and unit auto-detection, with a column-mapping step when detection is uncertain.

HP Tuners HPL ✓ Supported

VCM Scanner .hpl logs, opened and converted to CSV directly — no HP Tuners software needed.

SCT ✓ Supported

SCT Livewire / X4 datalog CSV exports, with the channel metadata SCT appends stripped to clean names and units.

Haltech ✓ Supported

Haltech NSP CSV exports (File → Export from a .hlg / .hlgzip log): base units scaled, multi-rate channels aligned.

FuelTech ✓ Supported

FuelTech FT-series datalog CSV exports (FT450 / FT550 / FT600), opened directly in your browser.

Holley EFI .dl ✓ Supported

Holley EFI data logs (.dl) from Terminator X, Sniper, Dominator, and HP EFI — opened and converted to CSV directly in your browser, no Holley software needed.

MegaSquirt / TunerStudio .msl ✓ Supported

TunerStudio text datalogs (.msl, and text .mlg) from MS2 / MS3 ECUs, opened directly in your browser. MegaLogViewer's binary .mlg container: save as .msl first.

MoTeC .ld ✓ Supported

MoTeC .ld logs, opened and converted to CSV directly in your browser.

Chassis dyno .TRB ✓ Supported

Dyno run files (.TRB) from the HPCurveTest software, opened directly: engine rpm, power and torque plain and SAE-corrected, road speed, the weather channels and both wideband channels, on the run’s own time base.

Planned Roadmap

These are targets for the universal importer system, not yet available.

Additional tuning-platform log formats

ECU & standalone engine-management logs

Drag racing logs

CAN bus logs

Vehicle telemetry

Custom CSV formats & shop-defined templates

API-imported datalogs