The Schemantra Insider’s Guide
Everything we know about Schemantra in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Schemantra
The Insider’s Guide
Free web-based JSON-LD generator for every schema.org type
Every plan, grade, refund rule and rival among technical SEO tools, read from Schemantra’s own pages.
Made by Schemantra Inc. · checked Oct 23, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Schemantra’s own pages, its app-store listings and our grades. Every fact in it is on Schemantra’s page too, where it is kept up to date. Checked Oct 23, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.6
GPA, above 56 of the 83 other technical SEO tools we grade
Schemantra is a free web app, marked as a beta, for writing schema.org markup in JSON-LD without code. It covers the whole schema.org vocabulary, about 1,350 types and 1,450 properties, and lets you nest related entities as sub-schemas to build a knowledge graph of a page, shown as a diagram. Markup is copied from the app and added to pages by hand or through a tag manager.
To get you started, here are 8 things to know about Schemantra, taken from its own pages and our grades.
You sign in and build each schema field by field, and nesting sub-schemas means knowing how schema.org types relate.
- 1
Best for free JSON-LD for any schema.org type
If you want markup checked or kept up for you, look elsewhere.
- 2
It is free
Schemantra has no paid plan at all. Free account to build, save and visualize JSON-LD markup for any schema.org type; the site shows no paid plan.
- 3
It runs on Web
Web.
- 4
The full schema.org vocabulary
Its guide lists 1,353 schema types and 1,448 properties, so less common types can be built as well as the ones Google uses for rich results.
- 5
Sub-schemas and linked entities
Properties that are themselves types, such as an organization's founder as a Person, are added as sub-schemas linked to the main entity.
- 6
Knowledge graph view
Shows the entities on a page and how they relate to the main one as a diagram while you build.
- 7
A 2.6 GPA, above 56 of 83
That is against the other technical SEO tools we grade, on value, the free plan, features, ease of use and platforms.
- 8
Keep it
Schemantra is free, so making your own would save you nothing.
Schemantra at a glance
- Pricing
- Free
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web
- Made by
- Schemantra Inc.
- Category
- Technical SEO & Site Audits
- Our grade
- 2.6 GPA, good
The report card
Best for free JSON-LD for any schema.org type
Schemantra is a free web app for writing schema.org markup of any type, with linked sub-schemas and a diagram of how a page's entities connect. It's still labeled a beta, the footer reads 2022 and the newest posts are from March 2024, it doesn't test or deploy anything, and you add the JSON-LD by hand. If you want markup checked or kept up for you, look elsewhere.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | Free: an account builds, saves and draws markup for any schema.org type, and the site shows no paid plan. Custom ontology work is a separate service with no prices shown. |
| Free plan and trial | A | Free outright, with no limits stated. You need an account to create and save schemas. |
| Features | D | One narrow job: writing JSON-LD across the full schema.org vocabulary, 1,353 types and 1,448 properties, with sub-schemas and a graph view. It doesn't test markup, add it to pages or watch it afterward. |
| Ease of use | C | No rating on record. You sign in and build each schema field by field, and nesting sub-schemas means knowing how schema.org types relate. There's a free course and step-by-step guides. |
| Platforms and integrations | C | Web only, with no integrations or API on record. Markup leaves the app by copy and paste, or through a tag manager you set up. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Schemantra is for
- Fits if you need a schema.org type that Google's rich result tools don't cover
- Works for mapping how the entities on a page relate before you write the markup
Who it is not for
- Watch out: it's still labeled a beta, the footer copyright reads 2022 and the newest blog posts are from March 2024
- Not for you if you want markup tested, as it only writes it
- Too light for sites that need markup added and monitored, as you paste it in yourself and nothing is checked later
- Skip it if you don't want an account, which is needed to create and save schemas
Good to know
Good for
- SEOs who need schema.org types that simpler generators leave out
- Describing how the people, places and products on a page relate to each other
- Learning structured data from worked examples
Worth knowing
- It is labeled as a beta; the footer copyright reads 2022 and the newest blog posts date from March 2024.
- It only writes markup: you add the JSON-LD to your pages yourself or through a tag manager, and nothing is monitored afterward.
- An account is needed to create and save schemas.
- Custom ontology building is offered as a service, with no prices shown.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
Free
No paid plan at all
Schemantra is free to use.
Free: an account builds, saves and draws markup for any schema.org type, and the site shows no paid plan.
Free
$0
Sign in to create, link and save schema markup of any schema.org type, with no limits stated.
The free plan
Free account to build, save and visualize JSON-LD markup for any schema.org type; the site shows no paid plan.
Read from schemantra.com on Oct 23, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Free web-based JSON-LD generator for every schema.org type. Here is what it does, as its own site describes it, and what it covers: no-code, schema markup.
It doesn't test markup, add it to pages or watch it afterward.
- The full schema.org vocabulary
- Its guide lists 1,353 schema types and 1,448 properties, so less common types can be built as well as the ones Google uses for rich results.
- Sub-schemas and linked entities
- Properties that are themselves types, such as an organization's founder as a Person, are added as sub-schemas linked to the main entity.
- Knowledge graph view
- Shows the entities on a page and how they relate to the main one as a diagram while you build.
- Industry starting points
- Lists the usual types for local businesses, healthcare, real estate, ecommerce, car dealers, airlines, hotels and publishers.
- Free course and guides
- A schema markup crash course with a car dealership example, step-by-step guides, and a forum for questions.
Where it runs
- Web
What it works with
Its own pages name no integrations.
Schemantra is made by Schemantra Inc.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
56/83
Other technical SEO tools it is graded above
Schemantra's GPA of 2.6 is higher than 56 of the 83 other technical SEO tools we grade, and level with 7.
It stands best on free plan and trial (A, above 62 of 83) and worst on features (D, above 0).
Schemantra has no paid plan.
On features, ease of use and platforms it scores 1.7 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Each grade against the category
Every bar is all 84 technical SEO tools we grade, cut by the letter each got. Schemantra’s own letter is outlined.
- AValue for moneyAbove 54 of 83
- AFree plan and trialAbove 62 of 83
- DFeaturesAbove 0 of 83
- CEase of useAbove 7 of 83
- CPlatforms and integrationsAbove 3 of 83
Price against what you get
Each dot is one of 73 technical SEO tools. Further left costs less; higher up scores better on features, ease of use and platforms. Schemantra is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
Schemantra is free, so making your own would save you nothing.
And it is not the kind of software a weekend replaces. It is one of the better ones too: its GPA of 2.6 is higher than 56 of the 83 other technical SEO tools we grade.
What you could make
- Schema markup: an app builder makes this well.
What you could not
- A builder that other people can use without writing code.
What this rests on. Schemantra’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Schema.dev, Schema App, WordLift, Schema Markup Validator and Google Rich Results Test
The 5 tools Schemantra is most often weighed against, with where each one differs from it.
- 2.8GPA
Schema.dev
Free
Free point-and-click schema markup builder for Chrome.
- Only Schemantra lists a web app.
- Only Schema.dev lists a browser extension.
- 1.8GPA
Schema App
Paid
Managed enterprise schema markup and content knowledge graph.
- Schemantra has a free plan. Schema App does not.
- Schemantra also covers no-code.
- Schema App also covers reports and AI search visibility.
- 1.6GPA
WordLift
From $879/mo
Knowledge graph, schema markup and AI content for search and AI.
- Schemantra has a free plan. WordLift does not.
- Schemantra also covers no-code.
- WordLift also covers rank tracking, AI search visibility, content optimization and internal linking.
- 2.8GPA
Schema Markup Validator
Free
Free schema.org checker for any structured data on a page or snippet.
- Schemantra also covers no-code.
- Schema Markup Validator also covers site audit.
- 2.8GPA
Google Rich Results Test
Free
Free Google check of which rich results a page's structured data earns.
- Schemantra also covers no-code.
- Google Rich Results Test also covers site audit.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
11
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Schemantra free?
Yes. Schemantra is free to use.
How much does Schemantra cost?
Schemantra lists one plan. Free: $0.
What platforms does Schemantra work on?
Schemantra is available on Web.
Does Schemantra have an Android app?
No Android app was listed when its pages were read on Oct 23, 2026. Schemantra is listed for Web.
Does Schemantra have an iPhone app?
No iPhone app was listed when its pages were read on Oct 23, 2026. Schemantra is listed for Web.
Is Schemantra open source?
Schemantra is not described as open source on its own site, as read on Oct 23, 2026.
Who makes Schemantra?
Schemantra is made by Schemantra Inc.
What are the alternatives to Schemantra?
The closest alternatives to Schemantra in our directory are Schema.dev, Schema App, WordLift, Schema Markup Validator and Google Rich Results Test.
How does Schemantra compare with other technical SEO tools?
Schemantra's GPA of 2.6 is higher than 56 of the 83 other technical SEO tools we grade, and level with 7.
Is Schemantra good value for money?
ToolGPA grades Schemantra A for value for money. Schemantra has no paid plan.
Could I make my own version of Schemantra?
Schemantra is free, so making your own would save you nothing. And it is not the kind of software a weekend replaces.
Where this guide comes from
The prices, plans, platforms and features were read from Schemantra’s own pages on Oct 23, 2026, and the grades were given on Oct 23, 2026. Graded from this listing, whose facts were read from Schemantra's own pages on 23 October 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Schemantra Inc. Prices change, so check schemantra.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Schemantra, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/schemantra
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Schemantra: The Insider's Guide", checked Oct 23, 2026. https://toolgpa.com/tools/schemantra
Know someone choosing between technical SEO tools?
Send them this guide: toolgpa.com/tools/schemantra/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded technical SEO tools after Schemantra, each with an Insider's Guide of its own.
- Technical SEO & Site Audits Insider's GuideEvery one of the 84 technical SEO tools we grade, compared
- Lighthouse Insider's GuideGoogle's open-source audit of page speed, accessibility and SEO3.2 GPA
- PageSpeed Insights Insider's GuideFree Google speed test with real-user Core Web Vitals and Lighthouse3.2 GPA
- Yellow Lab Tools Insider's GuideFree open-source audit of a page's speed and front-end code3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Schemantra’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Schemantra is a trademark of its owner, and this guide is not made, paid for or approved by Schemantra Inc. Prices and plans change: check schemantra.com before you buy.