GLOW Mastering
GLOW Mastering is a web-based AI mastering engine that adjusts tone and dynamics to produce masters with an analogue-studio character.
What GLOW Mastering is
GLOW Mastering is a web-based AI mastering engine that adjusts tone and dynamics to produce masters with an analogue-studio character. It runs in the browser using your computer’s power, without uploading audio files to a backend server. The service accepts WAV, MP3, FLAC, AAC, M4A, OGG, WEBM, and AIFF files, and can process batches of up to 10 files or 2GB total before providing a ZIP download. WAV exports include Streaming Ready at 16-bit / 44.1kHz, Cinema & Pro at 24-bit / 48kHz, and Studio Archive at 24-bit / 96kHz. AI detection, tonal and dynamic controls, and multi-speaker processing target phones, headphones, cars, and club systems. Dedicated EDM profiles cover techno, house, psytrance, dubstep, dub, trance, and chillout; hip-hop and rock are also supported. Users can listen before downloading and compare original and mastered versions. Plans include three free masters, a 5-master top-up for 7.99 USD once, and unlimited masters for $139 a year.
Good
- Audio stays on your computer during mastering
- Supports eight listed input formats
- Batch processing up to 10 files
- Multiple WAV export resolutions
- Free plan with three masters
Watch out
- Free plan limited to 5 tracks per month
- Batch limit is 2GB total
- Unlimited plan costs $139 a year
- Web platform only
Who it suits
GLOW Mastering suits web users who want browser-based mastering with local audio processing, WAV exports, and genre-oriented profiles. The free plan is for trying the service, while paid options target occasional or regular releases.
Verdict
GLOW Mastering combines local browser processing with comparison tools, batch handling, and several WAV output choices. Its free allowance and paid plans provide distinct options for occasional and ongoing releases.
Plans and prices
From GLOW Mastering's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Start Free | Free | 3 free masters · Hi-Rez WAV · Standard and EDM modes · no credit card required |
| Top Up With 5 Masters | $7.99, paid once | 5 masters · credits never expire · One-time payment |
| Unlimited Access | $139 a year | Unlimited masters · no top-ups needed · cancel anytime · per year |
The facts
Each one read from GLOW Mastering's own pages, with the date it was checked.
What it does
- Batch mastering
- Its batch processor can handle up to 10 files and 2GB total, with finished masters downloadable as a ZIP file.checked 8 Oct 2026
- Genre support
- GLOW offers dedicated EDM profiles for techno, house, psytrance, dubstep, dub, trance, and chillout, and says it also handles hip-hop and rock.checked 8 Oct 2026
- Input formats
- It accepts WAV, MP3, FLAC, AAC, M4A, OGG, WEBM, and AIFF files.checked 8 Oct 2026
- Intended users
- The site describes its free plan as a way to try the service and its top-up and unlimited plans as options for occasional and regular releases, respectively.checked 8 Oct 2026
- Listening and comparison
- Users can upload and listen before downloading and compare the original mix with the mastered version.checked 8 Oct 2026
- Local processing
- GLOW says it uses your computer's power to master tracks in your browser without uploading audio files to a backend server.checked 8 Oct 2026
- Mastering features
- The engine includes AI smart detection, tonal and dynamic adjustments, and a multi-speaker processor for devices including phones, headphones, cars, and club systems.checked 8 Oct 2026
- Output formats
- WAV export options include Streaming Ready (16-bit / 44.1kHz), Cinema & Pro (24-bit / 48kHz), and Studio Archive (24-bit / 96kHz).checked 8 Oct 2026
- Payments
- The site says payments are handled securely via Stripe.checked 8 Oct 2026
- Support
- The site provides a contact support form with fields for name, email, and message.checked 8 Oct 2026
- What it does
- GLOW Mastering is an AI-powered mastering engine that produces clean, dynamic masters with analogue-studio character.checked 8 Oct 2026
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