Validate XML sitemaps — checks urlset/sitemapindex root, loc entries, XML declaration, and URL count. Supports standard sitemap protocol formatting. Code never leaves your device — formatting and validation run locally in your browser.
Content reviewed October 2026 · About Toolzum
Validate GitHub Actions workflow YAML — checks for workflow name, on trigger, jobs section, and correct YAML structure. Identifies formatting issues and missing fields.
Minify XML by removing whitespace, or validate XML syntax. Paste your XML and choose an operation. Minify for transit or validate for correctness — free, local, no signup.
Validate GraphQL schema syntax and structure. Detect missing root types, unknown type references, and common schema issues.
Validate canonical tags — protocol, www, trailing slash, and page consistency. Catch the canonical pointing at staging — local checks, free, no signup.
Converts JSON files to XML format — APIs, configuration files, and data exchange between web services to enterprise systems, SOAP APIs, document formatting, and legacy integration pipelines.
Malformed XML fails fast with the error location highlighted.
Checked — sitemaps cap at 50,000 URLs and 50MB uncompressed.
Validated when present, with all of their required tags checked thoroughly.
No — validation runs locally in your browser, free with no signup.
RSS Feed Validator
Validate RSS/Atom feeds for spec compliance — required fields, date formats, enclosures. Fix podcast feeds Apple rejects — local validation, free, no signup.
robots.txt Validator
Validate robots.txt syntax — user-agents, allow/disallow, sitemaps, wildcards. Catch the Disallow: / that deindexed everything — local validation, free, no signup.