Click the "Select File" button above, and choose your S19 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert S19 to another file type
To convert S19 S-records to another format, you need SRecord or other Developer software.
Convert a file to S19
To convert other file formats to the "Motorola S-Record" file type, you need software like SRecord or a similar tool.
About S19 files
The .s19 file is an ASCII text file that stores binary data in hexadecimal format, specifically structured as a Motorola S-record. Hardware engineers use these files to program microcontrollers, EPROMs, and flash memory. The extension signifies that the file primarily relies on "S1" records containing 16-bit addresses, and it is terminated by an "S9" record.
To view the internal structure of these files, developers use embedded software toolchains like Keil MDK or open-source command-line utilities like SRecord. Because it is plain text, you can also inspect it in any basic text editor to read the raw S-record lines.
The main disadvantage of the .s19 format is its massive file size overhead and strict ecosystem limitations. Because raw binary data is translated into ASCII text characters - along with added address fields, line counts, and checksums - the file size is more than double the actual binary footprint. Furthermore, many modern hardware flashing tools only accept Intel Hex (HEX) or raw binary (BIN) formats, making the .s19 file unusable without an intermediate conversion. Manually managing checksum errors during editing is also practically impossible.
To bypass these workflow limits, convert your .s19 files. For direct hardware flashing, convert to BIN to strip out the ASCII text overhead and retrieve the exact memory image. For broader programmer toolchain compatibility, convert to HEX.
Convert.Guru analyzes your S19 file, detects the exact format, and lets you read the text inside.
If you want to convert S19 file to HEX, BIN, JS, TS, PY, JAVA, CPP, C, CS, PHP, RB or GO, you can use SRecord or similar software from the "Firmware and Microcontroller Programming" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to S19, try SRecord or another comparable tool in the "Firmware and Microcontroller Programming" category.
The S19 Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our S19 converter.