HALOSOUNDS vs LANDR vs eMastered: Online Mastering Compared

Three popular ways to master your music online — but they are built for different artists. Here is an honest breakdown of pricing, privacy, sound and who each one actually suits in 2026.

If you are an independent artist, you have probably searched for the best online mastering service and hit the big names. They all take a finished mix and give you a louder, more polished, streaming-ready master. Where they differ is how you pay, what happens to your file, and how much control you get. Let us compare.

Quick comparison

Competitor details are based on publicly described models and can change — always check each provider's current site for exact pricing and features.

LANDR: best for high-volume subscribers

LANDR is the most established AI mastering name and has grown into a full platform — mastering, distribution, samples and plugins. Its mastering engine applies EQ, compression, stereo imaging and loudness, and it offers reference-track matching. The model is built around a subscription, which is excellent value if you release frequently and want unlimited masters, but less so if you only put out a few songs a year. Like most services, your mix is uploaded to LANDR's servers for processing.

eMastered: simple, quick masters

eMastered focuses on a straightforward master with a handful of adjustable controls, offered through subscription and per-track options. It is backed by a very large content library that ranks well in search, and it leans on engineer credibility for trust. As with LANDR, processing happens after your file is uploaded to their servers.

HALOSOUNDS: pay-per-track, in your browser

HALOSOUNDS takes a deliberately different position on the two things artists care about most: cost commitment and privacy.

No subscription. You pay $0.99 for an Enhanced master or $2.99 for the Studio + Spatial master, only when you decide to download. If you release a few singles a year, you never pay for months you do not use.

Your music never leaves your device. This is the one feature no server-based competitor can match — HALOSOUNDS processes your audio entirely in your browser. Your unreleased track is never uploaded, stored or shared. For artists who are protective of unreleased material, that is a meaningful difference.

Three previews, matched in volume. You hear Original, Enhanced and Studio + Spatial and compare them at the same loudness, so you are judging the mastering itself rather than a volume trick. Read more in how to master a song online.

So which should you choose?

If you release music constantly and want one platform for mastering plus distribution, a subscription service like LANDR can be great value. If you want the simplest possible quick master, eMastered is straightforward. If you release occasionally, care about not uploading unreleased songs, and prefer to pay only when you love the result, HALOSOUNDS is built for you. Many artists even use more than one — a per-track tool for most songs and a subscription or human engineer for flagship singles. See also how loud should my master be and mixing vs mastering.

Frequently asked questions

Which online mastering service is best?

The best service depends on your priorities. HALOSOUNDS masters entirely in your browser so your audio never leaves your device, with per-track pricing from $0.99 and no subscription. LANDR and eMastered are established subscription-based platforms that upload your audio to their servers for processing. If privacy, per-track pricing and instant local processing matter most, HALOSOUNDS is built around those.

Is online mastering worth it?

For most independent artists, yes. Online mastering delivers a professional, streaming-ready master in minutes for a fraction of a studio's cost, which is ideal for singles, demos and high-volume release schedules. Whether you choose HALOSOUNDS, LANDR or eMastered, the value is speed, consistency and affordability compared with booking a mastering engineer for every track.

Does HALOSOUNDS upload my music like other services?

No — that is the core difference. LANDR and eMastered process your audio on their servers, which means your track is uploaded. HALOSOUNDS runs the entire mastering engine locally in your browser, so your music never leaves your device and is never stored or shared.

Do these services charge a subscription?

LANDR and eMastered are primarily subscription-based, with monthly or annual plans that unlock downloads. HALOSOUNDS uses simple per-track pricing from $0.99 with no subscription, so you only pay for the masters you actually download.

Can I hear the master before paying?

On HALOSOUNDS you can A/B the full mastered result against your original for free, as many times as you like, and only pay when you download. Free preview policies vary across LANDR and eMastered, so always confirm you can audition the actual master before committing.

What audio quality do these services output?

All three target streaming-ready loudness around −14 LUFS with true-peak limiting. HALOSOUNDS delivers up to a 24-bit WAV (and a 32-bit float / 96 kHz Studio option), which is more than enough resolution for any distributor or platform.