The free mastering app has been rebuilt from the ground up. Starter v2 does not apply a preset and hope. It measures your track first, in the browser, and derives the whole mastering chain from what it hears. Same address, same 5 free masters, a different engine underneath.

Three ways in

What changed under the hood

Every master starts with a measurement: loudness, true peak, crest, spectral balance, stereo correlation and the artifact scores that neural audio tends to carry. The chain (tone, dynamics, cleanup, limiting) is derived from those numbers, so a dark, dense track and a thin, bright one get different treatment from the same preset. Six platform targets, each with its own loudness and true-peak ceiling: Streaming, Apple Music, YouTube, Podcast, Club and Reference.

What you get back

A WAV master (16- or 24-bit) and a mastering report that says what was measured, what was flagged and what was done about it. The A/B player matches loudness between original and master, so the louder one does not win by default.

Free and Starter

Every account gets 5 free masters. Starter subscribers (€4.99/mo) master without limits and can batch up to 10 tracks at once. Your audio never leaves your device on either tier.

Open Starter → Free, in the browser. Nothing to install.