Extract text from SoundFont 2 instruments (SF2)
To convert SF2 instruments to another format, you need Polyphone or other Audio software.
To convert other file formats to the "SoundFont Instrument Bank" file type, you need software like Polyphone or a similar tool.
The .sf2 file extension stands for SoundFont 2, a sample-based virtual instrument format developed by E-mu Systems and Creative Technology in the 1990s. It uses the RIFF (Resource Interchange File Format) architecture to package raw digital audio samples alongside synthesizer parameters - like volume envelopes, LFOs, and MIDI key mapping - into a single, monolithic file. Originally designed to load directly into the hardware RAM of Sound Blaster cards utilizing the EMU8000 chip, these files are now primarily used by software synthesizers. You can open and edit these instrument banks using specialized samplers like FluidSynth or Polyphone, or read more about the format on its Wikipedia page.
Working with .sf2 files today presents challenges due to their legacy, closed-box design. The format locks the raw audio samples and the articulation data together inside a compiled binary block. Many modern Digital Audio Workstations (DAWs) such as Ableton Live or Logic Pro do not support .sf2 natively, forcing users to rely on third-party VST plugins. Furthermore, because it is a 32-bit era specification, it lacks the advanced scripting and round-robin capabilities required by modern, multi-gigabyte virtual instruments.
To modernize your workflow, converting .sf2 to SFZ is the best pragmatic solution. The SFZ format is an open, text-based standard that maps external WAV or FLAC files, making it completely transparent, easy to edit, and universally supported by modern samplers. Alternatively, you can convert the instrument for Native Instruments Kontakt as an NKI file. Converting to raw WAV is also a popular workaround if you only need the bare audio samples without the keyboard mapping logic.
Because .sf2 is a compiled binary format containing complex MIDI logic, standard online audio converters completely fail to process it. They do not know how to separate the synthesizer metadata from the raw audio data. Extracting the instruments properly usually requires dedicated sampler software. However, convert.guru can still identify the file format, inspect the internal file structure, and show the embedded text strings. Just drag and drop your file to see what it is and convert it if supported. If our analysis detects the underlying RIFF chunks, extracting the embedded WAV audio samples may still be possible.
Convert.Guru analyzes your SF2 file, detects the exact format, and lets you read the text inside.
Users also converted WAV, DWP, ZIP, SFZ, MP3, SF3, FLP, RAR, VST, MID, NKI, TXT and KMP files.
If you want to convert SF2 file to WAV, SFZ, DWP, MP3, DLS, NKI, MIDI, AAC, FLAC, OGG, WMA or M4A, you can use Polyphone or similar software from the "Virtual Instrument Audio Sampling" 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 SF2, try Polyphone or another comparable tool in the "Virtual Instrument Audio Sampling" category.
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 SF2 converter.