Free online audio tools

Two tools that independent musicians use every week: an AI mastering engine that gets a mix ready for release, and a stem splitter that takes a song apart into vocals and instruments. Both run online, both let you hear the result before you commit, and neither needs a subscription.

  • Online audio mastering

    Upload a mix, choose a genre preset, set a loudness target in LUFS and preview the master before you download it as a WAV. Built for singles going to Spotify, Apple Music and YouTube.

    • Genre presets and adjustable parameters
    • LUFS loudness targeting with true-peak limiting
    • Instant preview before download
    • WAV output ready for streaming platforms
    • Free, no subscription

    For: Independent artists, producers and home studios who need a release-ready master without a studio booking.

    Master a track

  • AI stem splitter

    Separate any song into vocals and instrumental, or into vocals, drums, bass and other. Hear a 21-second preview of the separation without signing up, then process the full track in the background.

    • 21-second preview without an account
    • 2-stem and 4-stem separation
    • MP3, WAV, FLAC and AIFF up to 100 MB
    • Stems as 44.1 kHz stereo WAV files
    • Runs in the background; results in your dashboard

    For: Singers making covers and practice tracks, producers remixing, DJs and teachers isolating parts.

    Split a song

How the tools work

Upload a file, hear a preview, then process the full track. Mastering returns a WAV master at the loudness you choose; stem separation returns each stem as its own WAV in your dashboard. Files are processed on our servers and you keep your rights to your own recordings.

Made by a label, for musicians

BeatRootRaga is an independent label that records ghazals, Indian classical and film-song covers. The tools grew out of the label's own work: mastering singles for streaming and separating reference tracks so singers can practise. That is why they favour natural dynamics over loudness for its own sake.

Hear the label's releases

Learn while you work

The Learn section explains the ideas behind the tools in plain language: what LUFS means, how a mastering chain is ordered, how to mix a vocal, and how to make a female version cover from a separated reference.

Open the Learn section

Latest releases

All songs

From the Learn section

All guides

Questions people ask

Are the BeatRootRaga audio tools really free?

Yes. Mastering a track and separating a song into stems are free, with no subscription. An account is only needed to keep results in your dashboard and to run full-length stem separations.

Do I need to install anything?

No. Both tools run in the browser on desktop and mobile. You upload a file, preview the result and download the output.

Which audio formats can I upload?

MP3, WAV, FLAC and AIFF. For mastering, upload the final mix with a few decibels of headroom rather than an already limited file.

What loudness should I master to for Spotify or Apple Music?

Around minus 14 LUFS integrated with true peaks at or below minus 1 dBTP suits streaming platforms, which turn louder tracks down. The mastering tool lets you set the target and preview it.

Can I use the stems commercially?

Separating a song does not change who owns the recording. Use stems only from music you own, have permission to use, or that is licensed for your purpose.

Which AI model does the stem splitter use?

Demucs, an open-source hybrid transformer model for music source separation. The preview and the full song use the same model.