Free Schema Markup Generators

A schema markup generator is a tool that turns details you type into a form into JSON-LD, the structured data code that tells search engines what a page is about. The free generator here covers eight common types, including Organization, LocalBusiness, Article and FAQPage, and runs entirely in your browser.

The 2024 Web Almanac reported JSON-LD on 41% of pages, up from 34% in 2022, the fastest growing of the structured data formats, so adding it is now ordinary practice rather than an advanced trick.

What schema markup does and does not do

Schema markup is a block of code, normally JSON-LD, that sits in the page and describes it in a vocabulary search engines share. Where your visible text says “Open Monday to Friday, call 0300 000 0000”, markup says the same thing in labelled fields: this is a LocalBusiness, these are its opening hours, this is its telephone number.

Markup does not give you a ranking boost on its own, and I would never promise one. What it does is remove ambiguity, make your pages eligible for certain rich results where Google still offers them, and give AI and search systems cleaner facts about who you are. Eligible is the key word. Google decides whether to show a rich result, and it can change which types it supports. If a markup type matters to your plans, check Google’s current documentation before you invest time.

Google recommends JSON-LD over the older Microdata and RDFa formats, and its introduction to structured data points to the Rich Results Test for checking markup before and after it goes live. I built the generator around that advice.

The Schema Markup Generator, field by field

I built this tool because most free generators either bury you in optional fields or output code you cannot tell is correct. This one asks only for the details that belong to each type and produces JSON-LD you can copy straight into a page. Because it runs in your browser, the details you type are not sent to my server.

Choosing the right type

The generator supports Organization, LocalBusiness, Article, FAQPage, Product, BreadcrumbList, Person and Service. Picking the right one is a decision about the page, not about the site. Use this rule of thumb:

• Organization belongs on your home page or about page and describes the business as a whole: name, logo, website, and profiles elsewhere on the web.
• LocalBusiness suits a business with a physical location or service area. It adds address, telephone and opening hours. If you serve customers at a shopfront or from a base, use this on the page that represents that location.
• Article belongs on blog posts and news items. It records the headline, author, and publish and modified dates.
• FAQPage belongs on a page that genuinely has questions and answers written out in the visible text.
• Product belongs on a page that sells or describes one specific product.
• BreadcrumbList mirrors the breadcrumb trail a visitor sees, so a search engine understands where the page sits in your structure.
• Person suits an author or founder page, and Service suits a page describing one service you provide.

Filling in the form

Fill in every field you can answer truthfully and leave the rest empty. Do not invent a rating, a price or a review count to make a form look complete. Markup must match what a visitor can see on the page. Google’s guidelines treat markup that describes content not visible to users as a problem, and fake review markup is the quickest way to lose trust with a search engine.

Reading the output

The output is a script block of JSON-LD. Read it once before you paste it. Check that the name, address and telephone number are spelled exactly as they appear on your site and in your Google Business Profile. Small inconsistencies between your markup and your profiles are a common data quality problem.

Adding and testing the generated code

The code goes in the page, either in the head or in the body.

1. WordPress: use a header and footer scripts plugin, or your SEO plugin’s custom schema field if it has one, so the code is limited to the page it describes.
2. Shopify and other hosted platforms: add the script to the relevant template or a custom code section, and confirm your theme is not already outputting the same type.

Before you add anything, check whether your theme or SEO plugin already outputs markup. Two competing Organization blocks, or two Article blocks with different dates, confuse more than they help.

Never publish markup untested. The routine I use takes a few minutes:

1. Paste your generated code into a testing tool, such as Google’s Rich Results Test or the Schema Markup Validator, before the page goes live.
2. Fix every error. Treat warnings as optional recommendations, though a missing field Google lists as recommended is usually worth filling if the information is true.
3. Publish, then test the live URL, because your platform may alter or strip the code.

A valid block is not the same as a useful one. The test cannot tell you whether the facts are correct or the type fits the page.

Which rich results each type can support today

Rich result support changes, which is why I avoid hard promises. A few notes that have held for a while:

I treat markup as data hygiene that sometimes earns a bonus, not as a guaranteed display feature.

Honest limits of a generator

A generator is only as good as your input and your judgement. These are the limits to keep in mind:

• It does not inspect your live site. It builds code from what you type. It will not warn you that your theme already outputs a conflicting block.
• It does not decide eligibility. A well formed type can still produce no rich result.
• It covers eight common types. Specialised types such as event markup need to be written elsewhere.

A workflow that fits schema into your wider site work

Markup works best as one step in a larger piece of work. This is the order I would follow on a small site:

1. Start with the page itself. Make sure the visible content answers the question the page exists to answer, then describe that content in markup.
2. Add Organization on the home page, with LocalBusiness if you have a location, and BreadcrumbList across the site.
3. Add Article to your blog posts and Service or Product to commercial pages.
4. Test each type, publish, and review whenever business details change.

Markup is only one part of how a page is understood. The words on the page, your headings and your meta tags carry more weight, which is why I pair this tool with the content and writing tools when I review a page, and why slow pages need attention from the image and speed tools. The full set lives in the free SEO tools hub.

When a free tool is not enough

For a ten page brochure site, the generator and a testing tool may be all you need. Things change when the site is large or complex. A shop with hundreds of products needs markup generated from catalogue data, not typed into a form. A site where templates already output conflicting markup needs someone to trace where each block comes from and remove the duplicates.

Those are the jobs where a professional audit saves time. It looks at rendering, templates, crawl behaviour and how markup connects to the rest of the technical setup. You can see how I approach this kind of work in the case studies.

Questions about schema markup generators

If your markup is already on the site but you are not sure it is correct, or you want it built properly across a larger site, my technical SEO services cover that work, and you can ask for a free audit through the contact page.