Deep audio insight
Detailed reports and complete track-level measurements.
AnalyzeDiscoverCompareVerify
Explore every detail with clear metrics, precise visualizations, comparisons, and reliable results.
Free download. Pro is a one-time purchase - no subscription.
Standards-based precision
Measure loudness, True Peak, dynamics, clipping, stereo balance, and more.
Mono, stereo, surround, and ADM
Complete mono and stereo analysis, plus multichannel QC and ADM masters.
Built for Apple
A fast, native interface with local-first analysis.
One app
Understand your audio
Explore the dynamics, frequency content, and spatial detail of your recordings with clear measurements and visual tools. All audio analysis runs locally on your device.
Analyze audio
LUFS-I, True Peak, LRA, PLR, PSR, Legacy DR, clipping, stereo balance, and more in one native report.
Reports
Organize your reports with tags and favorites, and search by artist, album, or dynamic range.
Detector
Review evidence that helps identify whether a source is Lossless, Lossy, or uncertain.
Visualizer
Explore audio visuals and comparisons with precise controls.
Live Audio Pro
Spatial Visualizer Pro
Inspect horizontal layouts and ADM objects, levels, and channel correlation.
Compare Pro
Compare tracks or albums with Mastering DNA, level-matched A/B, and blind ABX.
Batch Export Pro
Export visuals for folders and SACD ISO tracks.
Extract SACD tracks
Extract tracks from one or more SACD ISOs, including album information and artwork.
Formats
Studio masters and playlists
AudioGrade works directly with the lossless audio and playlist formats used by real music libraries.
Audio formats
FLAC
WAV / BW64
AIFF
DSF
SACD ISO
DFF / DSD
ALAC
WavPack
APE
MP4 / M4A / MOV
MKV / MKA
Playlist formats
M3U
M3U8
PLS
XSPF
CUE
Immersive master formats
ADM BWF / BW64
Automatic
CPU usage
50%
CPU
Auto uses 50% of available processors.
Automatic
Memory limit
40%
RAM
Auto uses a 40% memory budget.
Performance
Control resources
Tune CPU and memory budgets for album analysis, the analysis and batch queue, Detector scans, the Surround Visualizer, and Compare analyses.
Presets
CPU usage
Choose how many processing workers AudioGrade can use. Lower presets keep the operating system more responsive while work runs.
Presets
Memory limit
Pauses before starting more file work when the selected memory budget is exceeded.
Free configures resources automatically. Pro lets you adjust CPU and memory limits.
Foundations
Documented foundation
The report engine and ADM processing follow recognized standards for loudness, metadata, and rendering. Detector findings use a separate, versioned validation methodology designed to remain conservative when the evidence is ambiguous.
Standards behind reports and ADM
Programme loudness, True Peak, EBU Mode metering, Loudness Range, ADM metadata, and ITU reference rendering are implemented against the following primary specifications.
ITU-R BS.1770-5
Programme loudness and True Peak algorithms
EBU R 128 v5.0
Loudness normalisation and permitted maximum level
EBU Tech 3341 v4.0
EBU Mode loudness metering
EBU Tech 3342 v4.0
Loudness Range measurement
ITU-R BS.2076-3
Audio Definition Model metadata
ITU-R BS.2127-1
ADM reference rendering for advanced sound systems
Evidence behind the Detector
The Detector evaluates spectral cutoffs, retained high-frequency energy, temporal persistence, sample-rate consistency, and contradictory evidence. Its thresholds and safeguards are versioned and tested before release.
Spectral evidence
Conservative verdicts
Reproducible validation
Measurement profile
Standards-strict-v1
Measurement suite
2026.3
Detector profile
Deep v10
These are transparent engineering claims, not third-party certifications. Detector is a forensic screening aid, not proof of a file's provenance.
Options
Compare Free and Pro
Free includes complete analysis of individual mono and stereo files, report organization, and extraction of one complete SACD ISO with tags and artwork. Pro adds multichannel analysis, Live Audio, ADM, advanced Visualizer tools, and folder, album, and playlist analysis. It also includes extraction of multiple SACD ISOs, Batch Export, Compare, CSV exports, Shortcuts, and unlimited files per Detector scan.
| Feature | Free | Pro |
|---|
The same measurement engine powers Free and Pro. Pro expands workflow and capacity, not measurement accuracy.
Ready
Start now, free
Download AudioGrade and upgrade to Pro if you need all its features or simply want to support its development. Thank you!