OnKey tech stack

OnKey is learn to sing the songs you love. A free, open-source singing trainer for Mac th. It runs on Next.js, React and 0 more, read from its public repo dsmurrell/onkey.

Learn to sing the songs you love. A free, open-source singing trainer for Mac that listens to the music you play. The stack shown is detected from the public repository edition; hosted infrastructure and optional services may differ.

Education · web · https://singonkey.app/ · 343 GitHub stars, MIT (2026-10-27)

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Next.js (site/package.json@7a74cd96d6e3: "next")
React (site/package.json@7a74cd96d6e3: "react")

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70 vendors priced in full, with every plan and what it includes, and more being added
317 developer services on Vendors, 70 priced in full and the rest with free tiers and starting prices, growing as we research more
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OnKey tech stack

Built with

Frontend

What do I use to build this?And how much will it cost?What do you want to build?

What Are You Building?

Prices read from each vendor’s own pricing page

One placefor every stack decision.

Plan

Cost as you grow

Vendors

Audit

Billing

Showcase

Give your AI assistantaccess to Kong Reviews.

See what real productsare built on.

How services are ranked

See what startups build on.

Already built?Start from what you run.

Pick what works.Build what’s next.

Audit Your Stack

What's it built on?

What it runs on

What matters

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My Stacks

Billing

Vendors

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Showcase

Built Something?

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Prices, Kept Honest by Everyone

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Recently Featured

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Free

Paid Plans

Missing a Vendor?

Questions

Pick what works.Build what’s next.

What do I use to build this?
And how much will it cost?What do you want to build?

One place
for every stack decision.

Give your AI assistant
access to Kong Reviews.

See what real products
are built on.

Already built?
Start from what you run.

Pick what works.
Build what’s next.

Pick what works.
Build what’s next.