Embedded Toolbox

Online tools for MCU, protocol and debugging work: register bitfields, byte streams, checksum algorithms, cloud platform credentials. Pure client-side — your data never leaves the browser.

7 availableAll computation happens in your browser. Nothing you type is uploaded.

Math / Numeric

Ready

Number Base Converter

Binary / octal / decimal / hex conversion with big integers, two's complement by bit width and byte order views.

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Ready

CRC Calculator

Generic parameter model (poly / init / reflect / xor-out) with presets: CRC-8/16/32, CCITT, Modbus, CAN.

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Ready

Bitfield / Register Viewer

Inspect a register bit by bit, toggle / set / clear, and emit HEX plus C macros.

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Byte streams / Encoding

Ready

HEX ↔ ASCII / C array

Convert between hex and text, and generate a round-trippable uint8_t array.

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Protocols / Comms

Ready

Modbus Frame Builder

Build RTU and TCP read/write frames with automatic CRC16 and MBAP header.

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Ready

Web Serial Monitor

Talk to a serial port straight from the browser (Web Serial): send/receive, HEX / text / ANSI colour log, packet merging, quick commands and auto-reconnect.

Needs local browser hardware accessOpen tool

Cloud / Config

Ready

OneNET MQTT Credentials

Turn product and device info into an MQTT credential triplet, thing-model topics and a ready-to-paste ESP-AT command sequence.

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