Click the "Select File" button above, and choose your MLN file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert MLN to another file type
To convert MLN files to another format, you need MelonDS or other Game software.
Convert a file to MLN
To convert other file formats to the "Emulation State File" file type, you need software like MelonDS or a similar tool.
About MLN files
The .MLN extension represents three distinct file formats, creating frequent confusion for users.
Nintendo DS Emulator Savestate (50% share): The most common use is a "timewarp" or save state file generated by MelonDS, a popular open-source emulator. Unlike standard battery saves (SAV) which mimic a physical cartridge's memory, .MLN files capture a realtime snapshot of the emulator's RAM (often for the "undo" or rewind feature). Users often struggle to open these in other emulators like DeSmuME because the format is proprietary to the MelonDS memory mapping.
AutoCAD Multiline Style (20% share): In architectural and engineering workflows, .MLN files store "multiline" definitions - complex parallel line patterns used to draw walls, roads, or pipes in AutoCAD. These are actually plain ASCII text files. A common catch is receiving a DWG file without the accompanying .MLN library, causing custom line styles to disappear or revert to defaults.
Guitar Effects Preset (14% share): A legacy or specific preset format associated with Line 6 hardware (like POD Farm) or occasionally linked to Guitar Pro. These contain amplifier and pedal settings.
Conversion Tips:
For Emulation: You cannot directly "convert" a state file to a battery save. You must load the .MLN in MelonDS and use the in-game save function to generate a compatible SAV file.
For CAD: Rename the file to TXT to view and edit the line definitions manually in Notepad++.
For Archiving: Convert CAD styles to PDF documentation to preserve the visual reference of the line patterns.
Convert.Guru analyzes your MLN file, detects the exact format, and lets you read the text inside.
If you want to convert MLN file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use MelonDS or similar software from the "Nintendo DS Emulator Savestate" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to MLN, try MelonDS or another comparable tool in the "Nintendo DS Emulator Savestate" category.
The MLN 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 MLN converter.