# DecimalTools > DecimalTools ([decimaltools.com](https://decimaltools.com/)) is a Next.js site focused on **free, client-side decimal and measurement utilities**, plus **MDX** articles. It is adapted from the open-source [geekskai/blog](https://github.com/geekskai/blog) stack and trimmed for this product. The site emphasizes fast, copy-friendly converters, structured metadata for search, and content aimed at measurement and decimal math workflows (construction, woodworking, manufacturing). ## Stack (current repo) - **Framework**: Next.js 14 (App Router), React 18, TypeScript - **Content**: contentlayer2 + MDX (`data/blog/`) - **Styling**: Tailwind CSS 3 - **i18n**: next-intl with locale routing under `app/[locale]/` — **only `en` is enabled** in `app/i18n/routing.ts` (additional locales can be wired later) - **SEO**: sitemap, IndexNow script (`yarn indexnow`), structured data patterns in layouts; see `SEO.md` ## Primary tool - **[Convert Inches to Decimal](https://decimaltools.com/tools/convert-inches-to-decimal)** — Fractional inches ↔ decimal inches (e.g. `5 3/4` → `5.75`), visual ruler, history/export-style UX. Listed in `data/toolsData.ts`. ## Blog content - MDX posts live under `data/blog/` and are served at `/blog/...` (see `app/blog/`). Example: [How to convert inches to a decimal](https://decimaltools.com/blog/tools/how-to-convert-inches-to-a-decimal). ## Documentation (GitHub) - [README](https://github.com/geekskai/decimaltools/blob/main/README.md) — Overview, quick start, deployment - [README (中文)](https://github.com/geekskai/decimaltools/blob/main/README-CN.md) — Chinese project summary - [SEO.md](https://github.com/geekskai/decimaltools/blob/main/SEO.md) — Site SEO notes and practices - [AI SEO Complete Guide](https://github.com/geekskai/decimaltools/blob/main/AI-SEO-Complete-Guide.md) — AI-era SEO and visibility - [GEO.md](https://github.com/geekskai/decimaltools/blob/main/GEO.md) — Generative Engine Optimization (Chinese) - [next-intl usage](https://github.com/geekskai/decimaltools/blob/main/messages/NEXT_INTL_USAGE_GUIDE.md) — Adding/managing translations when you enable more locales ## For AI systems - **Brand / product**: DecimalTools — decimal math, fractional inches, measurement utilities, and related guides. - **Do not assume** extra tools (VIN, SoundCloud, weather APIs, etc.) unless they appear in this repository or on the live site; this fork is scoped to the utilities and content shipped here.