Free Online SEO & HTML Tools
Find a tool by name or category. Open each tool to see how it works and what it can do.
SEO Tools20 tools
Best free SEO tools to improve your website ranking.
Keyword & Content Analyzer
Review keyword and phrase frequency alongside a useful set of draft metrics in one private, browser-based workspace.
Open toolMeta Tag Generator
Create copy-ready title, description, canonical, and keyword tags from your page details.
Open toolTitle Tag Preview
Preview a title and check its length and wording before you publish it.
Open toolMeta Description Checker
Review description length, empty wording, and a search-result-style text preview.
Open toolOpen Graph Tag Generator
Generate Open Graph metadata for a page title, summary, URL, and share image.
Open toolTwitter Card Generator
Create social card metadata for a page title, description, and preview image.
Open toolCanonical URL Tag Generator
Create a canonical link element for a URL you have confirmed as the preferred version.
Open toolRobots.txt Generator
Draft simple robots.txt allow and disallow rules with a sitemap line.
Open toolXML Sitemap Generator
Build a basic XML sitemap from a list of absolute page URLs.
Open toolArticle and Organization Schema Generator
Create starter JSON-LD for an article or an organization from facts you provide.
Open toolFAQ Structured Data Generator
Format visible question-and-answer pairs as FAQPage JSON-LD.
Open toolBreadcrumb Schema Generator
Create BreadcrumbList JSON-LD from an ordered list of page labels and URLs.
Open toolHreflang Tag Generator
Create alternate-language link annotations from locale and URL pairs.
Open toolSEO URL Slug Generator
Turn a draft heading into a readable, lowercase URL path suggestion.
Open toolOn-Page SEO HTML Auditor
Review pasted page HTML for title and description tags, canonical and robots directives, social metadata, headings, image alternatives, language, viewport, and links in one report.
Open toolHeading Structure Checker
Review heading order and flag missing levels in pasted HTML.
Open toolImage Alt Text Checker
Find images with missing or empty alt attributes in pasted HTML.
Open toolInternal Link Extractor
List links in pasted HTML and classify them against a page URL you provide.
Open toolMeta Robots Tag Generator
Create a robots meta element for index/follow and snippet-preview directives.
Open toolSEO Content Brief Builder
Build a practical article outline and research checklist from a topic and audience.
Open toolHTML & Developer Tools5 tools
Free HTML tools for web developers.
HTML Formatter
Format and beautify messy HTML code.
Open toolHTML Minifier
Minify HTML to reduce file size.
Open toolHTML to Markdown Converter
Convert pasted HTML into a readable Markdown draft in your browser.
Open toolHTML Structure Checker
Review selected HTML structure, IDs, labels, images, and links.
Open toolJSON Formatter and Validator
Validate JSON syntax, format or minify it, and optionally sort object keys.
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Free online SEO and HTML tools
ItsFreelancer tools are free, browser-based utilities for freelancers, marketers and developers. Each tool page explains how the tool works, what input it reads and what it cannot check, so you can trust the result and know when you need a second check.
Browse the SEO tools for metadata, schema, sitemaps, robots rules and on-page audits, or the HTML and developer tools for formatting, minifying, converting and validating code. Pasted content is processed in your browser unless a tool page says otherwise.