KAGE Mastering
KAGE Mastering is a browser-based mastering studio that processes audio locally, so files are not sent to a server.
What KAGE Mastering is
KAGE Mastering is a browser-based mastering studio that processes audio locally, so files are not sent to a server. It accepts MP3, WAV, FLAC, AIFF, AAC, and OGG files. You can select mastering styles such as Balanced, Warm, Bright, Open Air, Bass Heavy, Punchy, Vintage, Modern Pop, EDM, Natural, Universal, Studio Lift, Hip-Hop, Cinematic, Tape, or Acoustic, then choose intensity from Subtle to Maximum drive. Loudness targets cover YouTube, Spotify, Apple, Tidal, Amazon, Broadcast, and EBU R128, with a custom option. Manual controls include EQ bands, stereo width, and compressor settings. A post-mastering parametric equalizer supports up to 20 bands, including Bell, LowCut, HighCut, shelf, Tilt, and Notch types. Loudness uses BS.1770-4 integrated, gated, K-weighted measurement. Exports are WAV, MP3, FLAC, or AIFF; WAV supports PCM or float with selectable sample rate and bit depth. It is Version 1.0 Public Beta and has a free web plan listed as free.
Good
- Files processed locally
- Accepts six listed input formats
- Loudness targets for major platforms
- Post-EQ supports up to 20 bands
- WAV export supports PCM or float
Watch out
- Version 1.0 Public Beta
- Web platform only
- Manual controls may require audio knowledge
Who it suits
KAGE Mastering suits musicians and audio creators who want browser-based mastering with local processing. It is useful for people needing preset targets, detailed controls, and multiple export formats.
Verdict
KAGE Mastering offers a free browser workflow with local file processing, broad format support, and adjustable mastering controls. Its public-beta status is the main qualification to keep in mind.
Plans and prices
From KAGE Mastering's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | KAGE Mastering is 100% free — and always will be · Version 1.0 Public Beta |
The facts
Each one read from KAGE Mastering's own pages, with the date it was checked.
What it does
- Beta status
- The product page identifies the software as Version 1.0 Public Beta.checked 9 Oct 2026
- Export formats
- Mastered audio can be output as WAV, MP3, FLAC, or AIFF.checked 9 Oct 2026
- Input formats
- It accepts MP3, WAV, FLAC, AIFF, AAC, and OGG files.checked 9 Oct 2026
- Intensity controls
- Mastering intensity options range from Subtle to Maximum drive.checked 9 Oct 2026
- Local processing
- The page says audio processing is done locally and files are never sent to a server.checked 9 Oct 2026
- Loudness targets
- Loudness presets include targets for YouTube, Spotify, Apple, Tidal, Amazon, Broadcast, and EBU R128, with a custom option.checked 9 Oct 2026
- Manual controls
- Fine-tuning controls include EQ bands, stereo width, and compressor settings.checked 9 Oct 2026
- Measurement
- The page says loudness is measured using BS.1770-4 integrated loudness with gated, K-weighted measurement.checked 9 Oct 2026
- Post-mastering EQ
- The post-EQ parametric equalizer supports up to 20 bands and offers Bell, LowCut, HighCut, shelf, Tilt, and Notch band types.checked 9 Oct 2026
- Purpose
- KAGE Mastering is a high quality mastering studio that runs entirely in the browser.checked 9 Oct 2026
- Style presets
- Mastering styles include Balanced, Warm, Bright, Open Air, Bass Heavy, Punchy, Vintage, Modern Pop, EDM, Natural, Universal, Studio Lift, Hip-Hop, Cinematic, Tape, and Acoustic.checked 9 Oct 2026
- WAV settings
- WAV exports support PCM or float with a selected sample rate and bit depth.checked 9 Oct 2026
The company
- Headquarters
- Seoul, South Koreachecked 28 Sep 2026
- Maker location
- KageProduction lists its address as 14 World Cup buk-ro 16-gil, Mapo-gu, Seoul.checked 9 Oct 2026
Alternatives to KAGE Mastering
- 1
Loudly
Free planAndroidiOSWebAPI8.3From $96 a year - 2
TrackGleam
Free planAndroidiOSWebLinux8.0Free plan - 3
AI Mastering
Free planOpen sourceAndroidiOSWebAPI7.8Free plan - 4
Matchering
Free planOpen sourceWebAPILinuxmacOS7.5Free plan - 5
SongUp AI
Free planWeb7.5From $9.99 a month - 6
Free Music Creator AI Mastering
Free planWeb7.3From $10.49 a month