Stop Writing Schema Markup by Hand: A Free JSON-LD Generator for Local SEO

Teo Stancu — Wed, 25 Mar 2026 14:38:52 +0000

Most of my agency work involves local businesses/cafes, auto shops, dentists and every single site needs Schema.org markup for LocalBusiness.

I used to write this by hand. Nested JSON brackets, OpeningHoursSpecification syntax, wondering if geo goes inside location or parallel to it.

Then I automated it.

The Tool

Nereteus JSON-LD Generator: https://nereteus.com/tools/json-ld-generator/en/

No signup. No tracking. Just fill the form, get valid structured data, paste it in your <head>.

Why Not WordPress Plugins?

They inject 47 scripts and kill your Core Web Vitals
Enterprise tools want your email before showing code
Most use Schema.org specs from 2019 that Google rejects

This runs on Astro + TypeScript. Client-side only. Your data never hits my server.

Features

LocalBusiness subtypes (Restaurant, AutoRepair, Dentist, etc.)
Smart Opening Hours with proper Schema.org formatting
Physical vs Service Area toggle (crucial for local SEO)
Entity building with sameAs social profiles
Real-time validation against Google's specs

Quick Implementation (Astro)

---
const schema = {
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "Client Business",
  // ... generated automatically
};
---

&lt;head&gt;
  &lt;script type="application/ld+json" set:html={JSON.stringify(schema)} /&gt;
&lt;/head&gt;

Works the same for Next.js, Nuxt, or vanilla HTML.

The point

Writing Schema markup manually is tedious debugging at 2AM. This generates valid JSON-LD in 30 seconds so you can get back to actual development.

Try it: https://nereteus.com/tools/json-ld-generator/en/