The 5 Best Loudness Meter Plugins in 2026
The best loudness meter plugins in 2026 for LUFS and true peak. What the numbers mean, what to master to for Spotify, and which meter suits you.
If you've ever finished a track, uploaded it, and found it sounds quieter or flatter than everything around it on Spotify, a loudness meter is the tool you were missing.
Your DAW's normal meters show you peak level. That tells you whether you're clipping. It tells you almost nothing about how loud your track will actually sound to a listener.
Here are the five worth using in 2026, and what the numbers on them mean.
What the Numbers Actually Mean
Three readings matter, and everything else on these plugins is detail.
LUFS (integrated) — the average perceived loudness of the whole track. This is the number streaming platforms use.
True peak — the real maximum level after your file is converted to MP3 or AAC. It can be higher than the peak your DAW shows, which is how a track that looked fine ends up distorting on Spotify.
LRA (loudness range) — how much the loudness varies across the track. A very low number usually means you've squashed it flat.
1. Youlean Loudness Meter 2
Best for: almost everyone, and it's free.
The free version has been the default recommendation for years and still is. Clear, resizable, and it shows LUFS, true peak, loudness range and dynamic range in one window. You can also drop a finished file in and analyse it offline rather than playing the whole thing through.
Pro is a one-off $37 and adds a dynamics graph, exportable reports and A/B comparison.
Worth knowing: the Spotify and YouTube presets sit in the Pro version; the free edition covers film, TV and gaming standards. You can still hit the streaming targets free, you just need the numbers yourself, and they're below.
2. Mastering The Mix LEVELS 2
Best for: producers who'd rather not read numbers at all.
LEVELS splits everything into sections — loudness, true peak, dynamic range, stereo field and bass space — and lights each one green when it's fine and red when it isn't. It's the fastest way to spot a problem without knowing what a LUFS is.
It uses 16x oversampling on true peak, so it catches inter-sample clipping that simpler meters miss.
Weakest at: depth. The simplicity that makes it good for learning is limiting once you know what you're doing.
3. iZotope Insight 2
Best for: anyone who wants one window with everything in it.
Insight is the professional all-rounder: integrated, short-term and momentary LUFS, loudness range, true peak, RMS, plus spectrum and stereo analysis. It has presets for a long list of delivery destinations, which is handy if you're doing anything beyond music.
Weakest at: price and overkill. If you only ever release music to streaming, you're paying for a lot you won't open.
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4. sonible true:level
Best for: judging loudness and dynamics together.
Most meters give you loudness on one side and dynamics on the other and leave you to work out the relationship. true:level shows both at once, so you can see whether you've bought loudness by flattening the track.
You can load up to eight reference tracks to compare against, and its Level Check gives written suggestions rather than just numbers. It's £59 with a 30-day trial and no free version.
Weakest at: being another opinion. If you already trust your ears, the suggestions can be noise.
5. Waves WLM Plus
Best for: people already inside the Waves ecosystem.
A long-standing standard that unusually includes a true peak limiter alongside the metering, so you can measure and correct in one place.
Worth knowing: it now mostly turns up inside Waves' subscription bundles. If you're not already a Waves user, one of the four above is a simpler purchase.
What Should You Actually Master To?
Spotify normalises playback to -14 LUFS integrated and recommends mastering to that figure, with true peak below -1 dBTP — or below -2 dBTP if your master is louder than -14 LUFS, because transcoding can push peaks up.
Premium listeners can change that: Loud is -11 LUFS, Normal is -14, Quiet is -19.
So mastering a club track to -6 LUFS doesn't make it louder on streaming. It just gets turned down, and you've given away your dynamics for nothing. More on that in our guide to making your mix louder.
Common Mistakes
Mixing to a LUFS target — meter at the mastering stage, not while you're still writing
Chasing the number instead of listening — the meter tells you where you are, not whether it sounds good
Ignoring true peak — this is what causes distortion that only appears after upload
Forgetting club playback isn't normalised — a track for a DJ set has different needs to a Spotify release
Real-World Insight from Future Sound Academy
The most common thing we see isn't tracks that are too quiet. It's tracks that have been pushed so hard there's nothing left moving.
A meter is genuinely useful for catching that early, because the loudness range number will tell you plainly what your ears have got used to over a long session. If your LRA is tiny and your track feels lifeless, the problem is upstream — usually the arrangement or the gain staging, which we cover in why productions sound thin.
Final Takeaway
Install Youlean Loudness Meter 2 free, aim for around -14 LUFS integrated with true peak under -1 dBTP, and stop there unless you have a reason not to.
The meter won't make your track better. It just stops you damaging it. If you want someone to listen properly and tell you what's actually holding a mix back, that's what our production coaching is for.
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