Built for engineers
AUTOMOTIVE · IIoT · CNC
Online calculators and parsers for automotive electronics, industrial IoT, telematics and CNC machining. CAN bit timing, CRC, DBC decoding, cutting data — instant, fully local, with animations that explain the why.
Browse by industry
Four industries, one toolchain.Bus · Diagnostics · Calibration · Everyday tools for automotive electronics: CAN/CAN-FD bit timing, CRC, UDS diagnostics, DTC encoding.
SECTOR-02 01 Industrial IoTModbus · MQTT · Fieldbus · Field-debugging tools for industrial connectivity: Modbus addresses, MQTT topics, checksums.
SECTOR-03 01 TelematicsOBD · VIN · Vehicle Cloud · Telematics data-link tools: OBD-II PID decoding, VIN check digit, bus bandwidth estimation.
SECTOR-04 02 CNC MachiningCutting Data · G-code · Threads · Machining tools: cutting data conversion, tap drill sizes, G-code viewing, interpolation animations.
Featured tools
The heavy hitters, ready to run.Resolve CAN bit timing (BRP, tq, phase segments, SJW) and sample point from clock and bitrate, plus CAN-FD DLC payload mapping.
TL-02 / AUTOMOTIVE CRC Calculator (CRC-8/16/32)Compute CRC-32, CRC-16/ARC, CRC-16/MODBUS, CRC-16/CCITT-FALSE and several CRC-8 variants locally in your browser.
TL-03 / AUTOMOTIVE DBC Viewer & Message DecoderParse DBC message and signal definitions in your browser, inspect bit layout, factor/offset, and decode physical values from a hex payload.
TL-04 / AUTOMOTIVE UDS DTC & ISO-TP Frame ToolConvert UDS DTCs like P0420 to/from two-byte frames, build and parse ISO-TP single/first frames locally.
TL-05 / IIOT Modbus CRC / LRC & Register AddressingCompute Modbus RTU CRC-16 and ASCII LRC, build complete frames, and map 1-based references like 40001 to 0-based PDU addresses.
TL-06 / TELEMATICS OBD-II PID Decoder (Mode 01)Decode Mode 01 41 <PID> <data bytes> responses into RPM, speed, coolant temperature, MAF, voltage and other common OBD-II values.
Visual explainers
Animations you can pause, step and replay.A step-by-step animation showing how simultaneous CAN transmitters resolve priority bit by bit with dominant and recessive levels.
ANIM-02 / SVG Anatomy of a CAN Data FrameA field-by-field animation of the standard CAN data frame: SOF, arbitration, control, data, CRC, ACK and EOF.
ANIM-03 / CANVAS What CNC Circular Interpolation Actually ComputesAn animated, adjustable-segment view of G2/G3 circular interpolation — how arcs become line segments, and how segment count drives chord error.
Why engineers trust it
Your data never leaves
CRC, DBC parsing and frame decoding run entirely in the browser. No request ever carries your input.
Verified algorithms
Every core algorithm is unit-tested against published check vectors — trust is earned by correctness.
Zero friction
No accounts, no popups, no paywall. Land from search and start computing in seconds.
Tools + explainers
Each tool links to a visual explainer, so you learn why it works, not just how.
Start from the tool index
8 tools grouped by domain, with keyword filtering.