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Mastering.to is a free browser-based audio mastering quality control tool. Analyze loudness (LUFS), true peak, dynamics, stereo width, clipping, and get platform-specific assessments for Spotify, Apple Music, YouTube, vinyl, and 35+ formats.
As an independent artist and mastering engineer, I was frustrated with the free tools available for artists to check their masters and get basic metrics like LUFS, dynamic range, true peak, and more. So, I built Mastering.to first as a free quality control resource for anyone releasing music, and second as a suite of premium tools for artists and engineers needing more specialized tools for analysis of post-rendered audio outside the DAW.
One night when mastering a track for another artist, I realized I didn't have any tools that could provide instant information when loading a track while also being able to A/B with references. To solve this, while also making the most useful and flexible tool possible, I created Mastering.to to use inside or outside the studio. You can run the app on your phone or another device paired to your car audio and A/B up to 24 tunes in your car—functionality I've always wanted but never found anywhere else. I hope you find it useful, and thanks for checking it out!
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About Mastering.to on Product Hunt
“Quality control for your masters”
Mastering.to was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #156 on the daily leaderboard. Mastering.to is a free browser-based audio mastering quality control tool. Analyze loudness (LUFS), true peak, dynamics, stereo width, clipping, and get platform-specific assessments for Spotify, Apple Music, YouTube, vinyl, and 35+ formats.
Mastering.to was featured in Music (53.5k followers), Spotify (24.2k followers), Audio (2.1k followers) and Vercel Day (26 followers) on Product Hunt. Together, these topics include over 16.4k products, making this a competitive space to launch in.
Who hunted Mastering.to?
Mastering.to was hunted by John B. 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.
Want to see how Mastering.to stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
John B
As an independent artist and mastering engineer, I was frustrated with the free tools available for artists to check their masters and get basic metrics like LUFS, dynamic range, true peak, and more. So, I built Mastering.to first as a free quality control resource for anyone releasing music, and second as a suite of premium tools for artists and engineers needing more specialized tools for analysis of post-rendered audio outside the DAW.
One night when mastering a track for another artist, I realized I didn't have any tools that could provide instant information when loading a track while also being able to A/B with references. To solve this, while also making the most useful and flexible tool possible, I created Mastering.to to use inside or outside the studio. You can run the app on your phone or another device paired to your car audio and A/B up to 24 tunes in your car—functionality I've always wanted but never found anywhere else. I hope you find it useful, and thanks for checking it out!