Freedom251 › AI Music Mastering Software
Songmastr
What Songmastr is
Songmastr is a web service that automatically masters a song using a reference track you provide. Its algorithm matches the reference’s RMS, frequency response, peak amplitude, and stereo width. Upload the song and reference as WAV or MP3 files, then download the processed file from the download page. The service uses artificial intelligence and is based on the open-source Matchering library. The maker recommends choosing a reference with a genre and feel similar to the song being mastered.
Songmastr runs in a browser and requires no installation or registration. Its free plan allows 7 song masterings per week. One-time paid options are the Single Pack at 4.00 USD, the EP Pack at 10.00 USD, the Album Pack at 20.00 USD, and the Studio Pack at 60.00 USD. Paid packs include uncompressed WAV files and custom and catalog references; pack sizes vary, and the Studio Pack also includes mixing advice for 1 song. A song can be up to 10 minutes and 80 MB. Files are deleted at most 24 hours after upload. Use is for personal and noncommercial purposes, and the terms grant Songmastr a perpetual, royalty-free, sublicensable license to use submissions while users retain copyright.
Who it suits
Songmastr suits musicians who want an automatic browser-based master guided by a reference track, without installing software or registering. Its free weekly allowance can suit occasional use, while one-time packs offer more masters for multiple songs.
What it does well
- Matches reference RMS, frequency response, peak amplitude, and stereo width.
- Accepts WAV and MP3 uploads.
- No installation or registration is required.
- Free plan includes 7 song masterings per week.
- Paid packs provide uncompressed WAV files.
What to know first
- Songs are limited to 10 minutes and 80 MB.
- Terms limit use to personal and noncommercial purposes.
- No stem mastering or loudness targets.
Limits
The free plan allows 7 song masterings per week. Each song must be no longer than 10 minutes and no larger than 80 MB; paid pack limits vary by pack, from 1 song in the Single Pack to 30 songs in the Studio Pack.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 7 song masterings per week | Free |
| EP Pack | 9 masters · 3 songs · 3 different masters per song · custom and catalog references · uncompressed WAV files | $10, paid once |
| Album Pack | 50 masters · 10 songs · 5 different masters per song · custom and catalog references · uncompressed WAV files | $20, paid once |
| Single Pack | 3 masters · 1 song · 3 different masters per song · custom and catalog references · uncompressed WAV files | $4, paid once |
| Studio Pack | 300 masters · 30 songs · 10 different masters per song · custom and catalog references · uncompressed WAV files · mixing advice for 1 song | $60, paid once |
As songmastr.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Open https://www.songmastr.com/ in a web browser.
- Choose a song and, if desired, a reference track in WAV or MP3 format.
- Use a reference with a similar genre and feel to your song.
- Process the upload and download the mastered file from the download page.
Verdict
Choose Songmastr for a straightforward online master shaped by a reference track, especially if the free weekly allowance covers your needs. Look elsewhere if you need stem mastering, loudness targets, or commercial-use rights.
Questions
Is Songmastr free?
Yes. The Free plan costs nothing and allows 7 song masterings per week.
How much do the paid packs cost?
The one-time prices are 4.00 USD for the Single Pack, 10.00 USD for the EP Pack, 20.00 USD for the Album Pack, and 60.00 USD for the Studio Pack.
Which audio formats can I upload?
Songs and reference tracks can be uploaded in WAV or MP3 format. Paid packs include uncompressed WAV files.
Do I need to install software or register?
No. Songmastr runs on the web and requires neither installation nor registration.
Can I use the output commercially?
The terms grant use for personal and noncommercial purposes.
What happens to uploaded files and submissions?
The upload page says files are deleted at most 24 hours after upload. Users retain copyright to submissions while granting Songmastr a perpetual, royalty-free, sublicensable license to use them.
Facts from Songmastr's own pages
- Age eligibility
- The terms require users to be at least 18, or the age of majority in their jurisdiction if higher. · songmastr.com, 8 Oct 2026
- Audio matching
- The algorithm matches the reference song's RMS, FR, peak amplitude, and stereo width. · songmastr.com, 8 Oct 2026
- Automated access
- The terms say automated use, including bots and scripts, is not authorized unless the website owner explicitly permits it. · songmastr.com, 8 Oct 2026
- Commercial use
- The terms grant use for personal and noncommercial purposes. · songmastr.com, 8 Oct 2026
- File limits
- A song can be at most 10 minutes long and 80 MB. · songmastr.com, 8 Oct 2026
- File retention
- The upload page says files are deleted at most 24 hours after upload. · songmastr.com, 8 Oct 2026
- Input formats
- Users can upload songs and reference tracks in WAV or MP3 format. · songmastr.com, 8 Oct 2026
- Output
- After processing, users can download the mastered file from a download page. · songmastr.com, 8 Oct 2026
- Purpose
- Songmastr automatically masters a song to a reference track uploaded by the user. · songmastr.com, 8 Oct 2026
- Reference choice
- The maker recommends choosing a reference track in the same genre and vibe as the song being mastered. · songmastr.com, 8 Oct 2026
- Requirements
- The service requires no software installation or registration. · songmastr.com, 8 Oct 2026
- Submission rights
- The terms say users retain copyright to their submissions while granting the service a perpetual, royalty-free, sublicensable license to use them. · songmastr.com, 8 Oct 2026
- Technology
- The service uses artificial intelligence and is based on the open-source Matchering library. · songmastr.com, 8 Oct 2026
Where Songmastr stands on Freedom251
- AI Music Mastering Software#29 of 50