GuitarTunings is a fast, lightweight and completely ad-free guitar tuner built for alternate tunings. Tune in standard, drop, open, artist-specific or basically any custom tuning, then shift the entire tuning up or down by semitones with one click. It also includes a growing database of songs and artists with their guitar tunings. The tuner uses the YIN pitch detection algorithm for real-time pitch tracking, with everything running directly in the browser. No ads. No clutter. Just open and play.

Which Vercel product did you use? What new capability did it give your team, and how did that shape the product you launched?

I used Vercel for hosting and Web Analytics. It gave me a simple way to deploy the app globally, iterate quickly, and see how people were using it without adding a heavy analytics stack. That let me focus on the product itself: keeping GuitarTunings extremely fast and lightweight while building the tuner, alternate-tuning controls, and song database around a simple “find the tuning → tune your guitar” experience.

Hey Product Hunt 👋 I built GuitarTunings because I kept running into the same problem: I’d find a song I wanted to play, discover it was in some weird tuning, and then have to manually figure out how to tune my guitar. The thing that actually started the project was learning John Mayer’s *In Your Atmosphere*. I wanted to tune the whole thing down a semitone to get a little less string tension, but with the tuning being so unusual, the tuners I found online made that surprisingly annoying. I’d have to calculate the notes for every string and create a custom tuning myself. So I built a tuner where you can take basically any tuning and shift the whole thing up or down by semitones with one click. I also wanted the tuner itself to be really fast, lightweight and completely ad-free. And now there’s a growing database of songs and artists with their tunings, so you can go from: Find the song → see the tuning → shift it if you want → tune your guitar. Would love to hear what you think, especially from guitarists: what songs or weird tunings should I add next? 🎸

Which Vercel product did you use? What new capability did it give your team, and how did that shape the product you launched?

GUITARTUNINGS

The fast, ad-free guitar tuner for any tuning

The fast, ad-free guitar tuner for any tuning