https://schema.qbmfx.com/Published tools, practical guides, editorial articles and release notes. Unapproved drafts are excluded.enhttps://schema.qbmfx.com/changelog/https://schema.qbmfx.com/changelog/Versioned product updates, fixes and limitations for Schema Support Checker.Product updates https://schema.qbmfx.com/tools/json-ld-generator/https://schema.qbmfx.com/tools/json-ld-generator/Build JSON-LD for eleven Schema.org types using real field values, see live local checker feedback, and copy or download the output.Tool https://schema.qbmfx.com/tools/csv-to-json-ld/https://schema.qbmfx.com/tools/csv-to-json-ld/Map CSV columns to Product or LocalBusiness markup, validate up to 500 rows, and download per-row JSON-LD plus a report in a ZIP.Tool https://schema.qbmfx.com/tools/json-ld-formatter/https://schema.qbmfx.com/tools/json-ld-formatter/Format, minify, or sort JSON-LD keys without changing facts or array order; find invalid JSON syntax before publishing.Tool https://schema.qbmfx.com/tools/schema-type-finder/https://schema.qbmfx.com/tools/schema-type-finder/Describe your page or choose a subject to find offline Schema.org types, with optional Google feature and rich-result candidate filters.Tool https://schema.qbmfx.com/tools/graph-visualizer/https://schema.qbmfx.com/tools/graph-visualizer/View labeled JSON-LD nodes, directed @id relationships, duplicate IDs, unresolved references and isolated nodes in a browser-local diagram.Tool https://schema.qbmfx.com/tools/html-schema-converter/https://schema.qbmfx.com/tools/html-schema-converter/Convert simple Schema.org HTML Microdata or RDFa to JSON-LD, or generate basic HTML markup from JSON-LD, locally with explicit subset limits.Tool https://schema.qbmfx.com/tools/schema-diff-checker/https://schema.qbmfx.com/tools/schema-diff-checker/Compare two JSON-LD documents and inspect added, removed and changed JSON properties with a downloadable report.Tool https://schema.qbmfx.com/tools/property-coverage-scorecard/https://schema.qbmfx.com/tools/property-coverage-scorecard/Compare present JSON-LD fields with dated Google required and recommended property lists; no rich-result guarantee.Tool https://schema.qbmfx.com/tools/meta-tags-checker-generator/https://schema.qbmfx.com/tools/meta-tags-checker-generator/Inspect HTML title, description, canonical and social tags, or generate escaped meta tags from your own page facts.Tool https://schema.qbmfx.com/tools/serp-preview/https://schema.qbmfx.com/tools/serp-preview/Preview page titles and descriptions on desktop or mobile with advisory length and pixel-width checks; no Google appearance guarantee.Tool https://schema.qbmfx.com/tools/robots-txt-tester/https://schema.qbmfx.com/tools/robots-txt-tester/Paste robots.txt and test a URL path for Googlebot, Bingbot or a custom user-agent with local rule matching.Tool https://schema.qbmfx.com/tools/sitemap-validator-generator/https://schema.qbmfx.com/tools/sitemap-validator-generator/Validate pasted or uploaded XML sitemaps and sitemap indexes, or generate sitemap.xml from supplied URLs.Tool https://schema.qbmfx.com/tools/llms-txt-generator-validator/https://schema.qbmfx.com/tools/llms-txt-generator-validator/Create and inspect voluntary llms.txt Markdown files locally; no AI indexing or ranking promise.Tool https://schema.qbmfx.com/tools/hreflang-checker-generator/https://schema.qbmfx.com/tools/hreflang-checker-generator/Generate HTML and XML hreflang annotations; inspect page tags and verify reciprocal links only across supplied pages or sitemap entries.Tool https://schema.qbmfx.com/tools/date-duration-currency-helper/https://schema.qbmfx.com/tools/date-duration-currency-helper/Validate dates, timezone offsets, ISO 8601 durations and ISO 4217 currency codes; generate factual Schema.org JSON-LD examples.Tool https://schema.qbmfx.com/tools/agency-report-generator/https://schema.qbmfx.com/tools/agency-report-generator/Build branded, browser-local client audit reports from supplied findings with Before/After notes, printable HTML and PDF via browser print.Tool https://schema.qbmfx.com/guides/json-ld-errors/https://schema.qbmfx.com/guides/json-ld-errors/Learn why JSON-LD breaks: trailing commas, quotes, missing fields, invalid dates and @id references.Guide https://schema.qbmfx.com/guides/retired-schema/https://schema.qbmfx.com/guides/retired-schema/Valid Schema.org markup can remain useful even when Google retires a specific rich-result feature.Guide https://schema.qbmfx.com/guides/schema-validator-vs-rich-results/https://schema.qbmfx.com/guides/schema-validator-vs-rich-results/Understand why Schema.org conformance checks and Google rich-result feature checks are not interchangeable.Guide https://schema.qbmfx.com/guides/google-feature-support/https://schema.qbmfx.com/guides/google-feature-support/A schema type can be perfectly legitimate vocabulary without producing a Google rich result. This guide explains how to read support tables, feature diffeGuide https://schema.qbmfx.com/guides/guided-schema-fixes/https://schema.qbmfx.com/guides/guided-schema-fixes/Good validation explains the problem, the likely impact and the safest next action. Learn how to repair JSON-LD without silently inventing facts or weakenGuide https://schema.qbmfx.com/guides/before-after-schema/https://schema.qbmfx.com/guides/before-after-schema/A repair is only trustworthy when you can inspect what changed. This article shows how to use side-by-side comparison to distinguish harmless normalizatioGuide https://schema.qbmfx.com/guides/html-schema-content-match/https://schema.qbmfx.com/guides/html-schema-content-match/Google expects structured data to describe what readers can actually find on the page. A lightweight local comparison can flag missing product names and sGuide https://schema.qbmfx.com/guides/client-schema-reports/https://schema.qbmfx.com/guides/client-schema-reports/A useful SEO report is a decision document, not a pile of red indicators. Learn how to turn JSON-LD findings into clear priorities, official references, bGuide https://schema.qbmfx.com/guides/bulk-jsonld-html-zip/https://schema.qbmfx.com/guides/bulk-jsonld-html-zip/Batch processing can turn hours of opening separate files into a short review, provided the tool keeps results separate, avoids unsafe archives and never Guide https://schema.qbmfx.com/guides/upload-corrected-schema-files/https://schema.qbmfx.com/guides/upload-corrected-schema-files/Code paste is useful for quick experiments, but real teams work with files. This hands-on guide explains how to upload source documents, preview safe editGuide https://schema.qbmfx.com/guides/schema-error-explanations-language/https://schema.qbmfx.com/guides/schema-error-explanations-language/Understanding a technical warning is often harder than fixing the punctuation. Clear explanations bridge the gap between website owners, developers and SEGuide https://schema.qbmfx.com/guides/json-ld-generator/https://schema.qbmfx.com/guides/json-ld-generator/Create factual Product, Article, FAQPage and other JSON-LD with the free generator, then check syntax and Google feature guidance.Guide https://schema.qbmfx.com/guides/csv-to-json-ld/https://schema.qbmfx.com/guides/csv-to-json-ld/Map CSV columns to Product or LocalBusiness JSON-LD, validate each row and download per-row structured data with a report.Guide https://schema.qbmfx.com/guides/json-ld-formatter/https://schema.qbmfx.com/guides/json-ld-formatter/Pretty-print, minify and reorder JSON object keys without changing structured-data facts or array order.Guide https://schema.qbmfx.com/guides/schema-type-finder/https://schema.qbmfx.com/guides/schema-type-finder/Find Schema.org type candidates from a category or custom subject and understand dated Google feature filters.Guide https://schema.qbmfx.com/guides/graph-visualizer/https://schema.qbmfx.com/guides/graph-visualizer/Explore directed JSON-LD entity relationships, @id references, duplicate IDs and unresolved links with a local SVG diagram.Guide https://schema.qbmfx.com/guides/html-schema-converter/https://schema.qbmfx.com/guides/html-schema-converter/Step-by-step browser-local conversion between simple Schema.org HTML Microdata, RDFa and JSON-LD with explicit limitations.Guide https://schema.qbmfx.com/guides/schema-diff-checker/https://schema.qbmfx.com/guides/schema-diff-checker/Use the Schema Diff Checker to find added, removed and changed properties and export a structural comparison report.Guide https://schema.qbmfx.com/guides/property-coverage-scorecard/https://schema.qbmfx.com/guides/property-coverage-scorecard/Compare your JSON-LD properties with dated Google feature field lists and understand what coverage does not prove.Guide https://schema.qbmfx.com/guides/meta-tags-checker-generator/https://schema.qbmfx.com/guides/meta-tags-checker-generator/Inspect static HTML metadata and generate escaped title, description, canonical and social sharing tags from real page facts.Guide https://schema.qbmfx.com/guides/serp-preview/https://schema.qbmfx.com/guides/serp-preview/Create a browser-local desktop or mobile search-result mockup and review advisory title-width and description-length warnings.Guide https://schema.qbmfx.com/guides/robots-txt-tester/https://schema.qbmfx.com/guides/robots-txt-tester/Paste robots.txt and check whether a selected user-agent can crawl a specific path using a documented local matching approximation.Guide https://schema.qbmfx.com/guides/sitemap-validator-generator/https://schema.qbmfx.com/guides/sitemap-validator-generator/Validate an XML urlset or sitemap index and generate a standards-shaped sitemap.xml from user-supplied URLs.Guide https://schema.qbmfx.com/guides/llms-txt-generator-validator/https://schema.qbmfx.com/guides/llms-txt-generator-validator/Build a voluntary llms.txt Markdown overview from real website links or check an existing file for structural issues.Guide https://schema.qbmfx.com/guides/hreflang-checker-generator/https://schema.qbmfx.com/guides/hreflang-checker-generator/Create hreflang link tags, inspect existing HTML and test reciprocal annotations across user-supplied language pages or XML sitemap entries.Guide https://schema.qbmfx.com/guides/date-duration-currency-helper/https://schema.qbmfx.com/guides/date-duration-currency-helper/Validate dates and timezone offsets, convert fixed durations to ISO 8601, and format ISO 4217 price/currency fields for Schema.org while preserving entered decimal precision.Guide https://schema.qbmfx.com/guides/agency-report-generator/https://schema.qbmfx.com/guides/agency-report-generator/Build branded, browser-local reports from manually entered findings or compatible SSC JSON findings arrays, with Before/After notes and printable exports.Guide https://schema.qbmfx.com/blog/google-feature-support/https://schema.qbmfx.com/blog/google-feature-support/A schema type can be perfectly legitimate vocabulary without producing a Google rich result. This analysis explains how to read support tables, feature diffeArticle https://schema.qbmfx.com/blog/guided-schema-fixes/https://schema.qbmfx.com/blog/guided-schema-fixes/Good validation explains the problem, the likely impact and the safest next action. Learn how to repair JSON-LD without silently inventing facts or weakenArticle https://schema.qbmfx.com/blog/before-after-schema/https://schema.qbmfx.com/blog/before-after-schema/A repair is only trustworthy when you can inspect what changed. This article shows how to use side-by-side comparison to distinguish harmless normalizatioArticle https://schema.qbmfx.com/blog/html-schema-content-match/https://schema.qbmfx.com/blog/html-schema-content-match/Google expects structured data to describe what readers can actually find on the page. A lightweight local comparison can flag missing product names and sArticle https://schema.qbmfx.com/blog/client-schema-reports/https://schema.qbmfx.com/blog/client-schema-reports/A useful SEO report is a decision document, not a pile of red indicators. Learn how to turn JSON-LD findings into clear priorities, official references, bArticle https://schema.qbmfx.com/blog/bulk-jsonld-html-zip/https://schema.qbmfx.com/blog/bulk-jsonld-html-zip/Batch processing can turn hours of opening separate files into a short review, provided the tool keeps results separate, avoids unsafe archives and never Article https://schema.qbmfx.com/blog/upload-corrected-schema-files/https://schema.qbmfx.com/blog/upload-corrected-schema-files/Code paste is useful for quick experiments, but real teams work with files. This analysis explains how to upload source documents, preview safe editArticle https://schema.qbmfx.com/blog/schema-error-explanations-language/https://schema.qbmfx.com/blog/schema-error-explanations-language/Understanding a technical warning is often harder than fixing the punctuation. Clear explanations bridge the gap between website owners, developers and SEArticle