62 free tools for SEO, content, analytics, and AI — no signup, right in your browser.
62 tools
Analyze and optimize the technical foundation of your website — from meta tags to sitemaps.
Optimize meta tags for SEO with character count, preview, and best practice recommendations.
Open toolCheck for similarity between two texts using advanced string comparison algorithms.
Open toolVisually configure robots.txt rules for LLM bots with live preview.
Open toolLists H1-H6 order for a page and flags skips.
Open toolCounts occurrences & % for tokens or n-grams in pasted text.
Open toolFetch and analyze hreflang implementations across multiple URLs with reciprocity validation.
Open toolGenerate XML sitemaps from URL lists with proper formatting and download options.
Open toolFeaturedAnalyze website performance using Google PageSpeed Insights API with Core Web Vitals metrics.
Open toolFeaturedAnalyze SERP overlap between 2-3 keywords with visual Venn diagrams and competitive insights.
Open toolValidate and preview JSON-LD schema for entity-based indexing with Schema.org support.
Open toolVisualize XML sitemaps grouped by URL depth or last modification date.
Open toolFeaturedAnalyze Google's AI Overview results for entities, brands, and references with AI-powered insights.
Open toolGroup keywords intelligently using advanced clustering algorithms. Upload keywords, visualize clusters, and export to Excel.
Open toolGenerate structured data markup for rich snippets. Create JSON-LD for Article, Organization, Product, Recipe, FAQ, Event, and more.
Open toolTools for better copy: count, check, format, and generate.
Convert between Markdown and HTML formats with live preview, syntax highlighting, and sanitization.
Open toolFeaturedGenerate multiple documents from Excel data using customizable templates with variable placeholders.
Open toolCount words in your text with accurate results using intelligent word boundary detection.
Open toolCount characters in your text with options to include or exclude spaces.
Open toolGenerates Lorem Ipsum placeholder text.
Open toolRemoves line breaks from text.
Open toolCalculates readability scores (Flesch-Kincaid, etc.) for pasted text.
Open toolVisual diff viewer comparing two text blocks with character and line-level highlighting.
Open toolConvert headlines to URL-safe slugs with German umlaut support and smart formatting.
Open toolBuild campaigns, calculate KPIs, and set up clean tracking.
Calculates Click-Through Rate (CTR).
Open toolCrafts campaign URLs with on-the-fly validation & copy button.
Open toolCalculate Jaccard index between two sets of pre-hashed emails for privacy-focused audience analysis.
Open toolGenerate GA4-compatible regex patterns from lists of paths or events with RE2 compatibility.
Open toolCreate direct Google Review URLs from Place IDs for easy customer review collection.
Open toolCalculate key performance indicators like CPC, CPA, ROAS, breakeven points, and maximum CPA based on marketing spend.
Open toolCompute customer lifetime value vs. acquisition cost with churn & margin sliders.
Open toolParse campaign URLs and extract UTM parameters into a downloadable CSV spreadsheet.
Open toolPlan and evaluate A/B tests, run the numbers on margins and budgets.
Calculates statistical significance of A/B test results.
Open toolUses z-test formula to compute needed samples for given baseline & lift.
Open toolFinds final price, margin %, and revenue impact for any discount scenario.
Open toolConvert, merge, and prepare CSV, Excel, and JSON — right in your browser.
Calculate costs, compare models, and count tokens for your AI projects.
Calculate API costs for AI/LLM projects across providers like OpenAI, Anthropic, and Google with preset scenarios.
Open toolCounts tokens for a very limited set of models using simple JS regex/split logic.
Open toolEstimate token counts and costs for GPT-4 and GPT-3.5 models with batch CSV/TSV processing and pricing calculations.
Open toolFeaturedCompare LLM model capabilities and parameters in an interactive comparison grid.
Open toolFind the best AI model for your needs through an interactive questionnaire.
Open toolEncoders, regex testers, diff viewers, and other everyday helpers.
Counts occurrences of different HTML tags on a page.
Open toolInstant round-trip encoding for text blobs, images via File API.
Open toolLive regex pattern testing with match highlighting and captured groups display.
Open toolConvert between raw characters and HTML entities for safe display and storage.
Open toolGenerate random numbers within a specified range with customizable quantity and decimal precision.
Open toolFormat posts and create assets for LinkedIn & co.
Convert and optimize images and PDFs — without uploading to third-party servers.
Convert between pixels and millimeters based on DPI for design and print applications.
Open toolConvert PDF pages to JPEG images with adjustable quality and batch download options.
Open toolConvert PNG images to optimized WebP format with size savings display using browser-image-compression.
Open toolInteractive decision frameworks for tricky SEO questions.
Determine whether to publish and index product or service pages for new markets with this SEO decision flowchart.
Open toolDecide when to implement hreflang tags for international SEO with this decision flowchart.
Open toolChoose the best site structure for international expansion - ccTLD, subdomain, or subfolder.
Open toolDetermine whether to index or noindex product pages based on SEO value and user experience.
Open toolDecide whether to keep, optimize, redirect, or remove underperforming pages.
Open toolNavigate the post-core update recovery process with this strategic decision flowchart.
Open toolDetermine whether to create a new landing page or optimize existing content for target keywords.
Open toolMake informed decisions about disavowing potentially harmful backlinks with this flowchart.
Open toolKnow when and how to update your XML sitemap for optimal search engine crawling.
Open toolChoose the right schema.org structured data type for your content to enhance search visibility.
Open toolDetermine whether to build or buy an SEO tool with this comprehensive decision flowchart covering costs, data privacy, ROI, and technical resources.
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