MasterForge

MasterForge is a browser-based mastering platform for music makers who want genre-aware tools and ways to address artifacts common in AI-generated tracks. It is strongest as a flexible, device-local workspace, though the free plan’s five-master cap makes it a starting point rather than an unlimited option.

Overview

Its AI cleanup tools target shimmer, weak bass, stereo artifacts and flat dynamics, while Pro Master adds a real-time DSP engine, multiband compression, M/S EQ, stem mixing and platform preview. The balance favors users who want both an automated route and room to refine a mix.

The free analyzer is a useful first step: it gives an AI audio health score, streaming-readiness assessment, shimmer and fog detection, and a seven-band spectrum without requiring signup. Auto-Master uses credits to repair a track, prepare a mastering plan and render a release-ready WAV; the run page also provides the prepared FLAC and plan. Supported audio formats are WAV, MP3, FLAC, OGG and M4A/AAC.

Key features

Analysis and cleanup

MasterForge’s focus on AI-music artifacts gives it a more specific purpose than a general-purpose mastering tool. The analyzer can flag several common sonic issues, while the cleanup tools aim to address them. The free analyzer has no signup requirement, but the free plan allows only five masters, so regular users may need a paid tier.

Automatic and manual workflows

Auto-Master is suited to a quick repair-and-render workflow; Pro Master is the better fit when users want a real-time DSP engine, multiband compression, M/S EQ or a multi-track stem mixer. Reference-track matching, stem mastering, loudness targets and WAV export are supported. Platform preview and 24-bit WAV export are reserved for Pro, making the entry-level paid plan less complete for users who need those controls or output format.

Local processing and privacy

The free mastering and analysis tools, along with Pro Master, process audio on the user’s device. Server-based services instead receive uploaded audio; files uploaded for Pro Analysis, Preparation, Auto-Master and the API are automatically deleted 90 days after a run finishes. Sunrise Software Oy says it follows GDPR and Finnish data-protection laws and does not use audio to train machine-learning models or improve its algorithms. The local-processing distinction matters to privacy-conscious users, who should still note which workflows involve uploads.

Pricing

Plan	Price	What it includes
Free	free	Five free masters, AI cleanup, music, podcast, voice and video presets, WAV and MP3 export, and unlimited free audio analysis.
Starter	€4.99 a month	Unlimited masters, 80 genre presets, batch mastering for up to 10 tracks, and WAV and MP3 export.
Pro	€9.99 a month	Starter features plus real-time DSP, a multi-track stem mixer, platform preview and 24-bit WAV export.
One-off mastering	€14.99, paid once	A hand-mastered track, 24-bit / 48 kHz WAV, a six-page PDF report and about 48 hours’ turnaround.

Free suits occasional users who can work within five masters and need standard WAV or MP3 output. Starter removes the master limit and adds batch work and a broader preset selection, but does not include the Pro-only DSP engine, stem mixer, platform preview or 24-bit WAV export. Pro is aimed at users who need those controls and output. The one-off service is a separate choice for someone seeking a hand-mastered track rather than ongoing software access. The listed monthly prices are 4.99 EUR for Starter and 9.99 EUR for Pro.

Platforms

MasterForge runs on the web as a Progressive Web App and can be installed to a home screen or desktop. It works offline after its initial load, though processing speed depends on the device’s hardware. A desktop or laptop is recommended for best performance, so it is less compelling for phone-first mastering.

Who it's for

MasterForge is a good fit for independent producers and creators who want to assess and clean up AI-generated music, automate a master, or move into more detailed stem and DSP controls. The free analyzer suits anyone who wants a quick audio-health check without signup. Users who need unlimited masters can move to Starter; those who need platform preview or 24-bit WAV export need Pro. It is a weaker fit for mobile-first users or anyone who wants unlimited free mastering.

Pros and cons

• Pros: The no-signup analyzer combines a health score, streaming readiness, artifact detection and a seven-band spectrum, making it useful before committing to a mastering workflow.
• Pros: Local processing for the free tools and Pro Master keeps those workflows on the user’s device.
• Pros: The progression from automated mastering to Pro’s DSP, stem mixing and platform preview offers distinct levels of control.
• Cons: Free mastering stops at five tracks, limiting continued use without a paid plan.
• Cons: The cheaper paid tier lacks Pro’s 24-bit WAV export, platform preview and advanced controls.
• Cons: The desktop-or-laptop recommendation and hardware-dependent speed make the experience less suited to phone-centered work.
• Cons: Server-based runs involve uploads, which are retained until automatic deletion 90 days after the run finishes.

Alternatives

For a category-wide comparison, see AI Music Mastering Software. Choose Auralith Forge if a one-time extra master without a subscription is preferable: its Single Master plan costs €2.99, paid once, and its free plan includes three full-length masters with unlimited 30-second previews. Tunr is the alternative to consider for a desktop app on macOS or Windows. SoundBoost.ai offers Android, iOS and web access, but its free plan allows revisions without finalizing or downloading. Matchering is a free, open-source option for users who want software available across desktop, web and self-hosted environments. TrackGleam is worth considering for unlimited free mastering with WAV and MP3 output and no signup. AI Mastering offers a free plan with unlimited mastering across a broad range of platforms. Cryo Mix is another web option with a free trial. WhitePrint AudioEngine is another web-based freemium alternative.

Verdict

Choose MasterForge if you want an analyzer and cleanup tools aimed at AI-music artifacts, with a path from automatic mastering to more detailed Pro controls. Its strongest advantage is that several key workflows process audio locally; its clearest drawback is that free mastering is capped at five tracks and advanced output and controls require Pro. If you need unlimited free masters, phone-first access or a different platform mix, compare alternatives before subscribing.