Free SEO tools that actually work
A complete toolkit for keyword research, technical SEO audits, on-page optimization, and content planning — built by the team behind the Glarify analytics platform. No signup, no limits, no upsell walls.
Everything you need to rank — without paying for another SEO subscription
Most "free" SEO tools cap your searches, hide results behind a signup, or push you into a trial after three queries. Glarify takes a different approach: every tool on this page runs unlimited, in your browser, with no account required. You get the same engines that power our paid analytics platform — question research from Google and Bing autosuggest, full-site crawls, meta tag generation, SERP previews, robots.txt validation, page-speed scoring, backlink discovery, and a live directory of llms.txt files across the web.
Whether you're auditing a new client site, researching content topics, fixing indexing issues, or shipping a meta description before a launch, the tools below are built to give you a real answer in seconds — not a teaser screenshot. Pair them with the full Glarify analytics platform when you're ready for multi-site dashboards, AI insights, scheduled reports, and Google Search Console + GA4 integration.
Free Site Audit & Health Score
Get an instant SEO health score for any URL. Connect your site to crawl up to 500 pages with AI fix recommendations.
- Health score
- AI fix recommendations
- Full-site crawl
Website Crawler & SEO Analyzer
See how Google views your website. Instant SEO audit with meta tags, headings, links, and technical SEO analysis.
- SEO scoring
- Meta analysis
- Link checking
Web Writing Guide
Master web writing with proven techniques for scannability, SEO optimization, and content that converts.
- SEO best practices
- Content structure
- Analytics tips
HTML Previewer
Live preview HTML, CSS & JavaScript code with responsive device modes and secure sandbox execution.
- Live preview
- Device modes
- Code templates
Visual HTML Editor
WYSIWYG editor that turns messy vibecoded HTML into clean, WordPress-ready blocks. One-click sanitize, beautify, strip boilerplate.
- Visual + code + split
- WordPress-safe cleanup
- Live preview
Markdown to HTML
Convert Markdown to clean, semantic HTML instantly with live preview and GitHub Flavored Markdown support.
- Real-time conversion
- GFM support
- Secure output
Meta Tags Generator
Create SEO-optimized meta titles and descriptions that drive clicks and improve search rankings.
- Custom character limits
- SERP preview
- Keyword optimization
Keyword Density Analyzer
Analyze keyword density and optimize your content for better search engine visibility.
- Density analysis
- Keyword suggestions
- Content optimization
SERP Preview Tool
Preview exactly how your pages will appear in Google search results before publishing.
- Real-time preview
- Mobile/desktop views
- Rich snippets
Page Speed Analyzer
Comprehensive site speed analysis with actionable recommendations for better performance.
- Core Web Vitals
- Performance scoring
- Optimization tips
Robots.txt Analyzer
Analyze your robots.txt to see which bots are allowed or blocked. Validate syntax and get recommendations.
- Bot status check
- Syntax validation
- 20+ known bots
Robots.txt Generator
Generate and validate robots.txt files to control how search engines crawl your site.
- Custom directives
- Syntax validation
- Best practices
Backlink Analyzer
Discover and analyze backlinks pointing to any website with detailed authority metrics.
- Domain authority
- Link quality
- Competitor analysis
Trusted by SEO Professionals
Why Our Tools Stand Out
Enterprise-Grade Technology
Built with the same advanced algorithms and infrastructure that powers our premium platform.
Lightning Fast Results
Get instant results with our optimized processing engine. No waiting, no delays.
Always Up-to-Date
Our tools are continuously updated to match the latest search engine algorithms and best practices.
Built for every kind of SEO work
From solo bloggers to in-house teams and agencies, here's how people use Glarify's free tools every day.
Content marketers & bloggers
Use Glarify Ask to map every question your audience is searching, then export a Markdown brief grouped by intent. Validate the angle with the SERP preview tool before you write a word.
SEO agencies & freelancers
Run a free site audit and website crawl on every prospect, generate meta tags in bulk, and check robots.txt and page-speed health — perfect for sales decks and client onboarding.
In-house SEO managers
Monitor technical health with the crawler, track question-search trends for editorial planning, and benchmark backlinks against competitors — all without burning an Ahrefs or Semrush seat.
Developers & technical SEOs
Validate robots.txt syntax, preview SERP snippets, audit Core Web Vitals, and inspect llms.txt files across the web to keep your site AI-crawler ready.
Founders & solopreneurs
Ship SEO basics yourself: generate meta tags, check keyword density, preview how Google sees your homepage, and find the questions your customers actually ask before hiring an agency.
AI & LLM teams
Browse the largest public llms.txt directory, inspect adherence scores, and benchmark how leading sites structure their AI-discovery files.
Frequently asked questions
Everything people ask before using Glarify's free SEO tools.
Are these SEO tools really free?+
Yes. Every tool on this page is 100% free with no signup, no credit card, and no usage limits. Glarify funds them through its paid SEO analytics platform, so the free tools stay free forever.
What is the best free alternative to AnswerThePublic?+
Glarify Ask is a free, unlimited alternative to AnswerThePublic. It pulls live questions from Google and Bing autosuggest, classifies search intent, clusters themes, and exports CSV or Markdown content briefs — with no daily search cap.
Do I need to install anything?+
No. All tools run in your browser. There is nothing to download, no Chrome extension required, and no API key to configure for the free tools.
Can I use these tools for client SEO work?+
Yes. Freelancers and agencies use Glarify free tools for client audits, content briefs, technical SEO checks, and keyword research. For white-label reports and multi-site dashboards, upgrade to Glarify Pro or Business.
How accurate is the question research data?+
Glarify Ask queries Google Suggest and Bing Autosuggest in real time — the same data sources that power the search box on each engine. Results reflect what real users are typing today.
How is Glarify different from Ahrefs, Semrush or Moz?+
Those platforms are great for competitive intelligence but cost $99–$449/month. Glarify focuses on the workflows most teams actually need every day — question research, site audits, content briefs, GSC + GA4 dashboards — at a fraction of the price, with a generous free tier you can use without signing up.
Unlock the full Glarify platform
These free tools are just the beginning. Unlock the full power of our AI-driven SEO platform with comprehensive analytics, automated reporting, and enterprise-grade insights.