Don’t take our word for it — hear your master, with every stage named, free, before you pay a cent.
Up to 16 stages · from $9.99 · no subscription · see how we compare · free LUFS check
This is the actual tool, mid-master. Broadcast-grade meters, not a preset dial — real-time spectrum, phase goniometer, BS.1770-4 LUFS, EBU R128, live as the track plays.
Try it live →Our mastering chain in your browser — or outboard gear, plug-ins, and a treated room, worked by hand. Same standard, either way.
Upload, hear the mastering chain in about five seconds, A/B against your raw mix, and read a 10-category score. Pay only if you keep it.
A professional mastering engineer masters your track by hand on real monitors — 48-hour turnaround, one free revision, plus a full report of exactly what was done.
Runs in your browser. Nothing is uploaded.
No account. No software. Drop your file and we handle the rest.
Drag any audio file into the browser. We analyze your mix instantly — genre, loudness, dynamics, and source quality issues.
Our named-stage chain masters your track (12, 14 or 16 stages, depending on your tier). You get a score out of 100 across 10 categories. Tweak the EQ and tone controls to dial it in.
A/B compare against your original. Hit Finalize for a second QC pass. Export in WAV, MP3, FLAC, or AAC when you're ready.
We built the chain an engineer would actually use.
Detects clipping, over-compression, phase issues in YOUR mix — before we process it. Tells you exactly what to fix.
Kiley walks you through every step. Announces your score, guides your tweaks. Like having an engineer in the room.
Second QC pass catches anything missed. Saves your tweaks, re-analyzes, confirms you're release-ready.
Four saturation curves modeled on SSL, Neve, API and tape machines, each with its own harmonic character.
22 genre profiles. Frequency-dependent mid/side shaping. Automatic.
Loudness, dynamics, spectral, stereo, transients — scored 0 to 100.
Instantly toggle original vs mastered. Hear the raw difference — no tricks.
EQ without phase shift in every export, so transients stay intact.
ITU-R BS.1770-4 LUFS, 4x true peak, phase correlation, LRA and PSR, matched against ffmpeg’s reference meter.
ML Demucs split into vocals, drums, bass, other. Per-stem EQ, volume, solo, mute — plus stem-aware mastering treatments before recombining.
Active 7-band spectral alignment to a chosen reference fingerprint. 219 references across 22 genres, intensity slider, ±3 dB per-band cap.
Consistent tone, loudness, and dynamics across every track in your album. LUFS-normalized batch render.
Render at 192 kHz internal (4× oversampled). Export 3 deliverables in one shot: 24/192 vinyl + 24/96 streaming + 16/44.1 CD.
Live LUFS / true-peak / LRA delta vs your master. See exactly how MP3 / AAC / Opus will affect loudness before you ship.
Section Gain Ride for verse-level dynamic contrast. M/S Spectral Compression for stereo-width-safe glue. Spectral De-Ess for surgical sibilance control.
Hear your master a step fuller (and a step gentler on Studio), level-matched so only the tone differs, then pick the one you like.
Wannamaker 5-tap noise shaping at 16-bit reduces quantization noise where the ear is least sensitive.
Lacquer-ready target: mono bass, −16 LUFS, −1.5 dBTP, softened sibilance. One click.
Here's what each option includes. You decide.
YOU ARE HERE LuvLang.studio from $9.99/track | LANDR $10/track or plans | eMastered $15–$39/mo | Human from ~$49/track |
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Competitor columns reflect what each service lists on its own public pages. "Not listed," "Not published" and "Not disclosed" mean we did not find the detail there, not that the service lacks it. Services change their features and prices, so please confirm on their sites. See the detailed comparisons.
No subscription required. Ever.
Try It FreeHear your master free first. One price per track, no subscription.
What is a “stage”? One processing step in your master, like EQ, compression or limiting. More stages means more control over the sound.
What you get: Standard runs 12 stages. Professional adds multiband compression and stereo width for 14. Studio adds mid/side processing and console emulation for 16, plus stem mastering and extra finishing passes.
Why not all 24? The live preview on desktop uses the full 24-stage engine. Your download uses the stages we measured as cleanest for each tier, because stacking all 24 hurt dynamics and added clicks. The settings inside those stages adapt to your track and genre.
For demos and rough cuts. 12-stage chain, MP3 only. Perfect for SoundCloud, demos, and reference bounces — not for commercial releases.
Releasing? → Most releasing artists pick Studio
For indie releases on Spotify. Lossless WAV/FLAC (44.1 or 48 kHz), Versions to choose your master, and a louder Competitive option. Solid for streaming-only releases that don’t need stems or analog character.
Need stems or vinyl? → Studio is only $20 more
The flagship. Built for releases. Every feature unlocked, every format delivered, three Versions to choose from. The only tier with stem separation, analog console emulation, vinyl-safe mastering, and 192 kHz output.
Choose Studio if you’re releasing on Spotify, Apple Music, Bandcamp, vinyl, or anything beyond demos.
Hand-mastering by a person is a separate, one-time service. The three per-track tiers above are self-serve, and nothing here is a subscription.
A qualified mastering engineer hand-masters your track — the full Studio chain tuned to your song, a full report, both 24-bit 44.1 kHz & 96 kHz files, your metadata embedded, and a revision if you want one. Delivered in hours.
Get my track mastered →Real customers, real audio, real verifiable before/after. Hearing is believing.
“I have been trying to learn and the LuvLang online platform seems like a great way to do just that. Your attention to the feedback has made the experience extremely helpful to me.”
“…going the extra mile by creating both master formats, embedding the metadata, and explaining everything so clearly. Your generosity and professionalism have meant a great deal to me.”
Already a customer? Send your master + a one-line review to hello@luvlang.studio.
Measured answers for every platform, from real loudness data.
See exactly what Spotify, Apple Music, YouTube, Tidal and 4 more platforms will do to your track, and whether it will clip.
How much Spotify and Apple Music turn down 17 genres, from 151 measured releases.
Why Spotify turns 81% of commercial releases down, and what to aim for instead.
Sound Check, -16 LUFS and the Apple Digital Masters -1 dBTP guideline.
YouTube turns loud audio down but never boosts quiet uploads.
Turn-down-only normalization and album-level loudness.
No normalization: how loud your master should actually be.
Why a streaming master is not a vinyl premaster.
Bit depth, sample rate and headroom, with steps for every major DAW.
Online audio mastering is mastering done by a web service instead of in a studio: you upload a finished mix, and processing sets its tone, dynamics and loudness for release. LuvLang runs it in your browser with up to 16 measured stages (12 on Standard, 14 on Professional, 16 on Studio), loudness targeting for Spotify, Apple Music, YouTube and other platforms, a 10-category score explaining what to fix in the mix, and a free before/after preview. You only pay, from $9.99 per track, if you download the master.
Transparency you can check. Most platforms don’t publish their processing. We name every stage in your master: up to 16, each kept because it measured cleaner. We score your master across 10 categories. We detect problems in your source mix and tell you exactly what to fix. We use linear-phase EQ on every master, with console emulation and M/S processing on Studio. Many services don’t publish any of this.
Yes. Same signal processing as high-end desktop plugins. Same math, different delivery. Compare your results to any commercial release.
No. There are no subscriptions. Single masters from $9.99 with zero commitment.
Standard: MP3 320kbps. Professional: WAV + FLAC (16/24-bit). Studio: WAV 32-bit float, FLAC, AAC. All with ISP correction.
Yes. Your master is yours. Streaming, physical, sync — no royalties, no attribution.
All purchases are final after download. You hear a full A/B preview before paying — that is your trial. Full policy.
Full preview before paying. A/B compare original vs mastered in real-time. Only pay when you're satisfied.
Yes — our free LUFS check tool measures your track's integrated loudness, true peak, and dynamic range against Spotify/Apple/YouTube targets, no upload limits or signup. Full mastering starts at $9.99/track when you're ready.
Upload your track to LuvLang in your browser — no plugin purchase, no install, no subscription. A mastering chain like the ones that cost hundreds in desktop plugins (EQ, bus compression, true-peak limiting, BS.1770-4 loudness targeting) runs from $9.99 per track, and Studio adds multiband, M/S processing and console emulation, with a full A/B preview before you pay.
AI audio mastering usually means automated mastering: software measures your track and chooses the EQ, compression and limiting for you. LuvLang is automated mastering. It measures loudness to BS.1770-4, runs your track through a named signal chain of up to 16 stages in your master, and lets you hear and A/B the result free before you pay. The processing itself is conventional audio processing; only the optional stem separation uses a trained machine-learning model. See AI audio mastering vs human mastering for what the label does and does not tell you.
LANDR is cheaper per track ($10) and well proven. LuvLang is the pick if you want to see what happens to your song: every stage in your master is named (up to 16), your master gets a 10-category score, and you can A/B it free before paying. Prices start at $9.99 per track with no subscription, and the Studio tier adds exact targets for Apple Music, Deezer, podcasts and vinyl. See the full comparison.
Select the Spotify/streaming preset before exporting — LuvLang targets -14 LUFS integrated loudness with a true peak ceiling that avoids inter-sample clipping on lossy encodes, measured via real BS.1770-4 K-weighted metering rather than a generic loudness slider.
Yes — LuvLang has a dedicated vinyl-safe preset targeting -12 LUFS / -3 dBTP, the actual physical-cut spec that keeps low-end mono-compatible and peaks under control for lacquer cutting, not just a louder streaming master relabeled "vinyl."
Real BS.1770-4 K-weighted integrated loudness, loudness range, and 4x-oversampled true-peak measurement — run in a dedicated Web Worker with a convergent loudness/TP optimizer, not a single-pass gain slider. You can see the exact numbers on every master via the 10-category live scorecard.
Our engine has 24 stages, and we measured every one. Stacking all of them in the file you download crushed dynamics (classical tracks lost 5.9 LU of loudness range) and caused clicks on fast transients, so your master goes through the stages that measured cleanest: up to 12 on Standard, 14 on Professional and 16 on Studio. On desktop, the live preview runs the full 24-stage engine; the file you download uses that measured subset.
LuvLang's Standard tier is $9.99 per track: a 12-stage chain with EQ, bus compression, harmonic exciter, warmth and true-peak limiting. Professional and Studio add multiband, stereo width, M/S processing and console emulation. You hear the complete A/B preview before paying, so you can judge the actual result rather than trusting a price point.
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Give your music the Luv it deserves.
Upload your track. Hear it mastered. No account, no credit card.
Start MasteringFree Cheat Sheet
Not ready to drop a track yet? Grab the cheat sheet — the 10 patterns I see most often when reviewing indie producer mixes, with the concrete fix for each. No nag, one email.
