How one developer built 160 browser-only tools with no backend using Next.js

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A solo developer has published the key engineering decisions behind freetoolsy.com, a collection of 160 browser-based utility tools built with Next.js 14, TypeScript, and Tailwind CSS. The site serves 399 static pre-rendered pages in English and Turkish from a single codebase, with all URL construction centralised in one file to simplify maintenance. A dynamic sitemap generated directly from route data ensures new tools appear in search indexes immediately after deployment, eliminating a recurring class of stale-sitemap bugs. The developer also built a pre-build registry consistency checker that catches mismatched tool imports in seconds, preventing mid-build failures across a growing 160-tool catalogue. Running entirely client-side with no backend, the tools function offline and require no server logs, data retention policies, or analytics infrastructure.

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