Free online GP to FLAC converter

1. Source format: GP

GP usually refers to a Guitar Pro song file, most commonly .gp3, .gp4, .gp5, or .gpx. These files store music notation, tablature, tempo, instrument tracks, and playback data for guitarists, bassists, and other musicians. They are widely used by people who write, edit, share, or practice songs in Guitar Pro and compatible notation software.

GP files are not audio recordings. They are score/project files that must be rendered or exported to audio before they can be turned into a format like FLAC.

2. Target format: FLAC

FLAC stands for Free Lossless Audio Codec. It is an audio format that compresses sound without losing quality, so the decoded audio is identical to the source audio. FLAC is popular for archiving, high-quality music libraries, and audio editing because it preserves full fidelity while usually taking less space than WAV.

Compared with MP3 or AAC, FLAC offers lossless quality and better suitability for long-term storage. It is supported by many media players, music servers, and audio tools.

3. How to perform the conversion

Because GP is a notation file and FLAC is an audio file, the conversion is usually a two-step process: first export or render the GP file to audio, then save that audio as FLAC.

Best method: use Guitar Pro or compatible notation software

1. Open the GP file in Guitar Pro or another program that can read the file.
2. Check the instruments, tuning, tempo, and playback sounds so the arrangement plays correctly.
3. Use File → Export or File → Export → Audio depending on the program.
4. Choose WAV or another uncompressed audio format if FLAC is not offered directly.
5. Save the exported audio file.
6. Convert that audio file to FLAC using an audio editor or converter that supports FLAC export, such as Audacity, ffmpeg, or similar desktop software.

Example with ffmpeg

If you already have a WAV file exported from the GP project, you can convert it to FLAC with:

ffmpeg -i input.wav output.flac

Example with Audacity

1. Open the exported WAV file in Audacity.
2. Choose File → Export → Export as FLAC.
3. Select the desired quality settings and save the file.

Online conversion option

You can also convert the file on 101convert.com for free, without installing any software, if the site supports the specific GP file type you have and the needed export workflow.

4. Notes on quality, compatibility, and limitations

Direct GP to FLAC conversion is not always possible because GP files are not audio. The result depends on the sound engine, instrument samples, effects, and mix settings used during playback. A GP file rendered in different software may sound slightly different.

If you want the best quality, export to a lossless intermediate format such as WAV before converting to FLAC. This avoids additional quality loss. If the GP file contains MIDI-like notation only, the final audio quality will depend heavily on the virtual instruments used to render it.

Also note that some older GP versions may not open in newer software without conversion or import support. If the file does not load correctly, try opening it in the version of Guitar Pro that matches the file format or use a compatible notation editor.