Mastering is often seen as the final polish — the step that gives your track loudness, clarity and balance before release.
But if you don’t have access to a professional mastering engineer, online instant mastering tools offer a fast, affordable alternative. Here’s a comparison of some of the best services available for DIY musicians.
LANDR
LANDR is one of the most well-known online mastering tools. It uses AI to analyse your mix and apply genre-specific processing. You can preview different mastering styles (warm, balanced, open) and adjust intensity. It’s beginner-friendly and integrates directly with distribution platforms. A great choice if you’re looking for an all-in-one solution.
Best for: quick mastering with a wide feature set
Free version: yes, with limitations
Subscription starts at: £6/month
CloudBounce
CloudBounce offers instant mastering with adjustable settings like EQ, loudness and brightness. It’s ideal if you want a bit more control over the process. It also supports batch mastering, which is helpful for EPs or albums.
Best for: mastering multiple tracks or tweaking your sound
Free version: preview only
One-off master: around £9 per track
BandLab Mastering
Completely free and surprisingly good, BandLab’s mastering tool offers four preset styles and delivers fast, clean results. While it’s not as detailed as paid options, it’s a fantastic starting point for new artists.
Best for: quick, free masters
Free version: yes
Pricing: free forever
eMastered
Created by Grammy-winning engineers, eMastered offers a sleek interface and solid results. It leans towards a louder, commercial sound, making it ideal for pop or hip hop tracks.
Best for: radio-ready loudness
Free version: preview only
Subscription starts at: around £13/month
These tools can’t replace a human ear entirely — but for independent artists on a budget, they’re a powerful way to master music in minutes.
