Click the "Select File" button above, and choose your ML file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert ML to another file type
To convert ML OCaml files to another format, you need OCaml or other Developer software.
Convert a file to ML
To convert other file formats to the "Source Code File" file type, you need software like OCaml or a similar tool.
About ML files
The .ml file extension primarily represents source code written in the OCaml or Standard ML programming languages. These files contain plain text code used to build robust, functional applications. Another common use for the .ml extension is the ICAO Master List, which contains cryptographic certificates (CSCA) used to validate electronic passports (eMRTD) globally via the ICAO Public Key Directory. Rarely, it can also represent a serialized machine learning model created with Python's scikit-learn.
While source code .ml files can be opened with text editors like Visual Studio Code, running them requires a specific compiler. The main disadvantage of sharing raw .ml code is that non-developers cannot read it easily, and syntax formatting breaks in basic notepad apps. For ICAO Master List files, the data is binary (DER-encoded ASN.1), meaning it is completely unreadable without specialized parsing tools. Serialized machine learning model files are also binary and can pose severe security risks if opened blindly from untrusted sources.
Converting .ml files solves these accessibility issues. For code review or documentation, convert OCaml .ml files to TXT or PDF to freeze the syntax formatting. For ICAO Master List files, extracting the certificates to PEM, DER, or parsing the data into readable CSV or JSON is essential for human analysis.
Convert.Guru analyzes your ML file, detects the exact format, and lets you read the text inside.
If you want to convert ML file to L, MG, TSP, JS, TS, PY, JAVA, CPP, C, CS, PHP or RB, you can use OCaml or similar software from the "Source Code & Certificate Lists" 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 ML, try OCaml or another comparable tool in the "Source Code & Certificate Lists" category.
The ML 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 ML converter.