Drop your track. HALO listens, then masters it to studio‑grade perfection — your song, only better.
Free to preview · Pay only to download — from $0.99
Play, then sift Original → Enhanced → Studio. Every move above was decided for this track.
Finish another? Drop a new track at the top.
From rough mix to release-ready master — entirely on your phone.
Drop your track right in the header. HALO reads and analyzes it in seconds.
A/B your song against the HALO master — every move tailored to your track.
Download a 24-bit studio master — ready for Spotify, Apple Music, TIDAL and beyond.
Streaming platforms normalize loudness to published targets. HALO masters to spec — verified by measurement, not guesswork.
One master, safe everywhere: a −14 LUFS integrated master with a −1.0 dBTP true-peak ceiling plays clean on every major platform — louder platforms turn it down gracefully, and nothing ever clips.
Your release stands shoulder-to-shoulder with major-label tracks in every playlist — measured, not guessed.
Spatial width opens the mix around the listener while vocals stay locked center and bass stays mono-solid.
Harmonic bass excitement means your low end is felt even on tiny speakers — and multiband dynamics keep it smooth on big ones.
Finish tonight, release Friday. Every master ships with verified loudness and true-peak numbers.
HALOSOUNDS is an online music mastering studio in your browser. The engine listens to your track — frequency balance, loudness, dynamics, stereo image — then masters it with adaptive EQ, four-band dynamics and a true-peak limiter to the loudness streaming platforms expect: −14 LUFS integrated, −1.0 dBTP. Upload a WAV, FLAC, AIFF or MP3, A/B the result free, and download a 24-bit studio-grade master ready for Spotify, Apple Music, TIDAL and YouTube Music — in about a minute, from $0.99.
Your music never leaves your device. Unlike traditional online mastering services, HALOSOUNDS processes audio entirely in your browser — nothing is uploaded, stored or shared. Your unreleased songs stay yours.
The engine analyzes your track — frequency balance, loudness, dynamics and stereo image — then applies adaptive EQ, four-band dynamics, parallel density compression and a true-peak brickwall limiter, finishing at −14 LUFS integrated with a −1.0 dBTP ceiling.
Yes. Upload your song and A/B the original against the HALO master free, as many times as you like. You only pay to download the finished file.
No. HALOSOUNDS processes your audio entirely in your browser. Your music never leaves your device and is never uploaded, stored or shared.
WAV, FLAC, AIFF and MP3. Your master is delivered as a 24-bit WAV — the Studio tier renders at 48 kHz.
Yes. Masters are measured and normalized to −14 LUFS with a −1.0 dBTP true-peak ceiling, which plays clean on Spotify, Apple Music, TIDAL and YouTube Music.
$0.99 per track for an Enhanced streaming master, or $2.99 for the Studio + Spatial master with harmonic bass, air excitement and immersive width.
About a minute. Analysis takes seconds, you audition the result instantly, and the final 24-bit master renders in under a minute for a typical song.
Every HALOSOUNDS master is measured against the published loudness specifications of the major streaming platforms — one file, clean everywhere.