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Free Online Audio Mastering Tool
Free Automatic Mastering Tool
Free online audio mastering with loudness normalization, compression, and true-peak limiting. Upload WAV, choose your platform (Spotify, YouTube, CD), and download mastered audio instantly.
Top comment
Hey Product Hunt! 👋 I'm a musician from Berlin, and this tool was born from frustration. Every time I finished a track, the mastering step felt like a roadblock. Professional mastering costs $50-100 per track. Online services either sound robotic or require endless tweaking. And my DAW's built-in limiter? Let's just say Spotify wasn't impressed. So I built what I actually needed: **The problem I solved:** - Streaming platforms normalize loudness differently — get it wrong and your track sounds quieter than others - True peak limiting prevents codec distortion (that "crunch" you hear on loud tracks) - Genre matters — Jazz needs breathing room, Metal needs punch **What makes this different:** - Picks settings automatically based on your genre + target platform - BPM-synced compressor (release time follows your track's tempo) - 8× oversampling limiter (most DAWs max out at 4×) - No account needed, files auto-delete after 14 days **Built with:** - FFmpeg for audio processing - Java/Spring Boot backend - Web Audio API for instant preview This is 100% free — no premium tier, no limits. Just musicians helping musicians. I'd love to hear: - What genres do you produce? - Any features you'd want added? - How does it compare to your current workflow? Drop your tracks in and let me know what you think! 🎸 --- Tagline suggestion: "Free automatic audio mastering for Spotify, YouTube & CD — no signup" Topics: Audio, Music, Productivity, Developer Tools, Open Source
About Free Online Audio Mastering Tool on Product Hunt
“Free Automatic Mastering Tool”
Free Online Audio Mastering Tool was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #156 on the daily leaderboard. Free online audio mastering with loudness normalization, compression, and true-peak limiting. Upload WAV, choose your platform (Spotify, YouTube, CD), and download mastered audio instantly.
On the analytics side, Free Online Audio Mastering Tool competes within Music, Spotify and YouTube — topics that collectively have 94.3k followers on Product Hunt. The dashboard above tracks how Free Online Audio Mastering Tool performed against the three products that launched closest to it on the same day.
Who hunted Free Online Audio Mastering Tool?
Free Online Audio Mastering Tool was hunted by Oleg Tsymaenko. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Free Online Audio Mastering Tool including community comment highlights and product details, visit the product overview.