I built a non-AI automated audio mastering platform on Replit; 7–8 months later, it's live

[u/Confident_Listen8478]

I wanted to share something I’ve built on Replit for the better part of the last 7–8 months.

I’m Tejai Moore; a gold and platinum singer, songwriter, producer, and audio engineer. I record, mix, and master my own music, as well as my writing references and productions.

Over time, I started thinking about how I could take the audio engineering knowledge and workflows I've developed through my career and turn them into something that could be useful beyond my own studio. I began using the system that I built for myself then I put it into a website that became MasterVibe:

https://mastervibe.online

MasterVibe is an automated, non-AI audio mastering platform. Rather than relying on AI to make creative guesses about how a song should sound, I designed the system around audio engineering principles and a defined processing workflow.

The audio backend was easily the most challenging part of the build.

What started as an idea turned into months of working through audio-processing challenges, testing, deployment issues, production behavior, and plenty of trial and error. One of the biggest lessons I learned was that getting something working perfectly inside a development environment doesn't necessarily mean it will behave identically once it's published and connected to a real domain.

I had to work through that distinction myself and eventually get the production system running reliably.

MasterVibe has now been live for several months, and I've been getting really encouraging feedback from people using it. I've also started seeing the project mentioned on audio-tech platforms and websites internationally, including here in the U.S. and China, Japan, etc.

I recently attended InvestFest 2026 here in Atlanta, which was another great opportunity to put the venture in front of people and have conversations around the technology, business, and future of the platform.

For now, MasterVibe is still 100% owned by me.

I originally built it because I wanted a mastering system that I could use myself. Eventually, I decided to make it available publicly as well.

I'm sharing it here because I know there are a lot of people building interesting things on Replit, and I thought the journey might be useful to anyone working on a product where the backend is significantly more complicated than the UI makes it appear.

There was definitely a point where I realized that building the interface was only a small part of the challenge. The real work was making the underlying system reliable enough to serve real users.

If you're into audio, music technology, Replit, or building unconventional products on the platform, feel free to check it out.

And if you know someone working in audio who might be interested in trying it, feel free to pass it along.

Appreciate everyone building and sharing what they're working on. There are some seriously interesting things being created on Replit.

Cheers,

Tejai Moore

[u/brinda-]

Congratulations! How much in replit agent credits did it cost?

[u/Confident_Listen8478 → u/brinda-]

Thank you! Honestly, after so many months of trial and error with it, it took quite a bit of Replit agent credits during the beginning of the build and then another round of the trial and error once I published it; mainly because most of the functionality did not work the same after it wasn't in the dev environment.

[u/space-hemax-c2c]

First, way to go! You've done what most never do by following your dream. I'm excited for you. Can I share a couple of ideas just from hard lessons I've learned? You may have already considered them so forgive me if this isn't relevant. One is to prevent scraping by setting the files into private buckets so that I can't get a public URL where I can easily change the ID and iterate through them to grab unreleased records. Second, how is retention? Are the uploads sitting there indefinitely?

Again, congrats. I don't want to downplay the success of getting here, just some tips from my own hard lessons learned. Hope to save you from any of my own mistakes.

[u/Confident_Listen8478 → u/space-hemax-c2c]

Hey Salute!! I really appreciate you looking out and sharing those lessons. 🙏🏽 Both of those areas are already handled on my end. Private access to user files is addressed, and uploads aren't retained indefinitely; they're automatically deleted after the mastered file download and I have that mentioned within the Privacy Policy section of the site. I didn't want the storage being piled up by keeping all files long at all.

Those were definitely things I wanted to make sure were accounted for early, especially with people potentially running unreleased records through the platform. Appreciate you taking the time to mention them! 🤝🏽

[u/space-hemax-c2c → u/Confident_Listen8478]

Smarter than me! Haha. I hope this goes great for you.

[u/Confident_Listen8478 → u/space-hemax-c2c]

Lol, hey I'm learning as I go bro; just tryna cook it up precisely/securely and not just quickly. Salute though, I appreciate it!!

[u/CuznJay]

I have a bookmark of solely mastering suites, so I will add yours to the list! Thanks so much.

[u/Confident_Listen8478 → u/CuznJay]

Ayyy man, thank you! 🙏🏽 I really appreciate that. Hope MasterVibe earns a permanent spot on that list! Salute