AUF Converter

Extract text from AUF files


Drop or upload your .AUF file

How to extract text from your AUF file

  1. Click the "Select File" button above, and choose your AUF file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert AUF to another file type

To convert your AUF file to another format, you need Audacity or other Audio software.

Convert a file to AUF

To convert other file formats to the "Project Data File" file type, you need software like Audacity or a similar tool.


About AUF files

The .AUF extension usually refers to legacy data files generated by Audacity (versions prior to 3.0). These are Audacity Summary Files found inside the _data folder of an old project.

The Problem: Users often find these files when trying to recover lost recordings and attempt to play them. However, .AUF files do not contain actual audio; they only store the visual waveform data to help Audacity load graphics faster. They are proprietary, useless on their own, and cannot be converted to MP3 or WAV directly. The actual audio is stored in accompanying AU files.

The Solution: To recover the audio, you must open the main AUP file in Audacity, which reassembles the scattered data. For modern workflows, Audacity now uses the single AUP3 database format to avoid this mess.

Secondary Uses:
1. AviUtl Filter Plugin: Used by the Japanese video editor AviUtl. These are essentially DLL files renamed to .auf. They add effects or functionality and cannot be converted to media formats.
2. Carlson Survey Data: A plain ASCII text format used by Carlson Software for point data. These typically contain coordinates (North, East, Elevation) and can be easily converted to CSV or XLSX for use in Microsoft Excel.

Convert.Guru analyzes your AUF file, detects the exact format, and lets you read the text inside.

Users also converted WAV, SND and SA1 files.


FAQ

If you want to convert AUF file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use Audacity or similar software from the "Audio Waveform Summary" category. In the File menu, look for Save As… or Export….

To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to AUF, try Audacity or another comparable tool in the "Audio Waveform Summary" category.



The AUF 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 AUF converter.