LANDR
The most established name, and a genuinely good ecosystem: mastering plus distribution, plugins, samples, and collaboration under one subscription. The catch for bargain-hunters: as of August 2026 the free tier is preview-only behind a signup wall, the cheapest download is $10 for one WAV, and your audio is processed on their servers — with one exception, since their DAW mastering plugin processes inside your DAW without uploading. Watch which tier you buy: Studio Essentials at $99/yr is unlimited MP3 with no WAV at all; WAV starts at Standard ($144/yr, unlimited MP3 plus 36 WAV), and Pro is $192/yr for unlimited WAV and HD WAV. Those are annual-billing prices — monthly costs more. If you want the whole platform, LANDR earns its price; if you just want a track mastered, you're paying for a lot you may not use. Full TrackGleam vs LANDR comparison →
BandLab Mastering
The most generous free tier among the big names: BandLab's help centre states the free plan gives unlimited WAV and MP3 downloads of your mastered tracks, with no per-track fee. Their documentation doesn't mention a watermark and none is widely reported, though the wording we could verify covers the downloads rather than explicitly promising none. The trade-offs, checked August 19, 2026: you must create a BandLab account to download (the master lands in your BandLab projects), audio is processed on their servers, and extra presets plus the intensity control sit behind Pro — $14.99/month, or $99 for the first year and $149/year after. A fine choice if you're already in the BandLab ecosystem; less so if you want to master without an account.
eMastered
Founded by Grammy-winning engineers and respected for tonal balance and reference matching. It's subscription-only, with one product and three ways to pay, checked August 19, 2026: $15/month if you pay $180 upfront for the year, $19/month on the yearly plan billed monthly, or $39/month month-to-month. There is no pay-per-track option. Read the middle one carefully — eMastered's own pricing copy describes it as a one-year commitment, and while their terms do let you cancel before a renewal date, payments already made are non-refundable, so it is effectively priced as a year. The free tier is a preview after signup — there are no free downloads. Worth it for high-volume releasers who like its sound; expensive for occasional use.
Waves Online Mastering
Built by one of the most trusted names in pro audio plugins, with quality to match the brand. Pricing note worth reading twice: as of July 2026 — the one service on this page we did not re-check in the August pass — the advertised "$1.99 per track" is the per-track math of a $71.64/year subscription (36 credits); a single credit is $3.99, and the free tier is a 30-second preview. TrackGleam's AI master is $1.99 flat, one time, no plan required — so if that number is what caught your eye, check which version of it you're getting.
CloudBounce
Gone. As of August 19, 2026 the CloudBounce site is unreachable, and CD Baby — which resold CloudBounce mastering — ended that partnership in February 2025. It still appears in “best of 2026” roundups, which is a useful test of whether anyone actually checked. If you're searching for a CloudBounce alternative, the closest successor is Image-Line's FL Cloud Mastering, or a browser tool like TrackGleam — which, running on your device rather than rented cloud servers, has no per-track compute bill and can keep its free tier free.
TrackGleam (that's us)
One job: mastering, in your browser. The free tier is a real downloadable WAV/MP3 — no signup, no watermark, no cap — because all 14 stages of the Gleam Engine V2 run on your device and your audio never uploads. Masters target release-competitive loudness (Auto ≈ −11 LUFS, streaming-safe −14 on Low) at a −1.0 dBTP ceiling, with a volume-matched A/B. The paid tier comes as five AI mastering engineers — punch, warmth, space, energy or transparency — each reading 60+ measurements of your track and adapting to it; every one previews free, and switching is one tap. (They’re fictional TrackGleam characters — creative mastering directions, not real people.) The optional AI-Enhanced Master is $1.99 one-time (Creator Pack: 10 for $5, credits never expire; heavy users can add the optional Producer plan — $8.99/month or $89.99/year — for unlimited masters under fair use), with a 14-day money-back guarantee on one-time purchases. No distribution, no plugins, no ecosystem — deliberately.