Modbus Tools
A complete Modbus toolkit: build RTU/TCP/ASCII request and response frames, compute CRC-16 & LRC checksums, convert register addresses, and decode registers with configurable data types and byte order. Runs fully in your browser.
ModbusKit-style industrial toolkit. Select a tool to generate, parse and verify Modbus frames and register data.
Modbus RTU
Generate request & response frames, parse RTU messages and compute CRC-16.
Open →Modbus TCP
Generate & parse Modbus TCP frames with MBAP header.
Open →Modbus ASCII
Generate & parse Modbus ASCII frames with LRC checksum.
Open →Register Address Converter
Convert between Modbus request address, 1-based sequence and 5/6-digit reference.
Open →Register Data Decoder
Decode register words into integers and floats with byte order.
Open →RTU Serial Debugger
Full Modbus RTU serial debugger: Web Serial connection, log, send, parse & visualize.
Open →