UNI Converter

Convert UNI files online for free


Drop or upload your .UNI file

How to convert your UNI file

  1. Click the "Select File" button above, and choose your UNI file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert UNI to another file type

The converter easily converts your UNI file to various formats - free and online. No Media Player or extra software needed.

  • UNI to MONO
  • UNI to MP3
  • UNI to WAV
  • UNI to AAC
  • UNI to FLAC
  • UNI to OGG
  • UNI to WMA
  • UNI to M4A
  • UNI to AIFF
  • UNI to OPUS
  • UNI to ALAC
  • UNI to APE

Convert a file to UNI

The converter also works in reverse, so you can convert other Data formats to UNI with high quality output.

  • MIDI to UNI
  • AAC to UNI
  • TTA to UNI
  • AU to UNI
  • WV to UNI
  • DTS to UNI
  • MID to UNI
  • FLAC to UNI
  • RA to UNI
  • MP3 to UNI
  • PCM to UNI
  • WAV to UNI

About UNI files

The .UNI file extension represents a diverse range of data formats, primarily functioning as a Universal ECG Data file generated by Mortara Instrument (now part of Hillrom). These files contain raw electrocardiogram waveforms and patient demographics recorded by clinical devices like the ELI 150c or 250c. While essential for medical diagnostics, the format is highly proprietary and inaccessible without specialized cardiology software like ELI Link or Pyramis, making it difficult to share directly with patients or general practitioners. Converting these medical records to PDF is crucial for archiving and universal viewing, while XML conversion allows for interoperability with hospital information systems (HIS).

Beyond medical use, the .UNI extension is frequently encountered in gaming and development environments. It serves as a simulation cache for the Unity engine, storing pre-calculated physics or asset data to speed up runtime performance. These files are typically binary and tied to specific project builds, often requiring the original editor to inspect. Additionally, visual novel engines like NScripter use .UNI for game scripts or archives, and strategy games like Medieval II: Total War use it for unit definitions. For these text-based or script variants, converting to TXT or JSON is the most practical solution for modding, localization, or debugging. Users may also find .UNI files acting as simple Unicode text documents, which can be opened and converted by any standard text editor.

Use Convert.Guru to open and convert your UNI file.

Users also converted ECG, MP4, PDF, INP, CY, TSD, NXS and MONO files.



The UNI 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 UNI converter.