All Free AI & SEO Tools
Browse 66+ powerful AI tools, SEO auditors, DNS checkers, email validators and developer utilities — all completely free. No signup, no limits.
AI Humanizer
Transform AI text into natural human writing
AI Humanizer Scorecard
Score and audit AI text for human-like writing patterns
AI Content Detector
Detect AI generated content
AI Paraphraser
Rewrite text with multiple styles
AI Email Writer
Generate professional emails instantly
AI Text Cleaner
Strip the dead giveaways from AI-generated text — em-dashes, emoji, 'delve/tapestry' filler, over-bolding, curly quotes. 100% client-side, no signup.
SEO Migration Recovery Suite
3-step migration recovery — discover all URLs, audit for 404s and redirect issues, generate redirect CSV, robots.txt and schema fix files. Free for 25 URLs. AI fixes from $9/mo.
360° SEO + AEO + GEO Audit
Complete 9-dimension audit — Technical SEO, On-Page, Schema, AEO content, GEO readiness & AI visibility. Every result verified against Google's own tools. Results in 20 seconds.
Technical SEO Auditor
Real-time technical SEO audit — detects 404 errors, redirect chains, robots.txt blocking, noindex tags, and canonical issues. 100% accurate using live HTTP requests.
SEO Audit Tool
Free real-time SEO audit powered by Google Lighthouse — check Core Web Vitals, SEO score and 40+ ranking factors
Broken Link Checker
Crawl any webpage and find every broken link, 404 error, redirect chain and dead image. Real HTTP requests — exact status codes for every link. Free for 100 links.
AI Crawler Checker
Check if ChatGPT, Claude, Perplexity and Gemini can crawl your site — analyze robots.txt for all AI bots
AEO & GEO Audit Tool
Check if your site is optimized for ChatGPT, Claude, Perplexity & Google AI Overviews — real schema, robots.txt, and live AI visibility test
Local Business AI Visibility Checker
Check how your local business appears in ChatGPT, Perplexity, Google AI & Claude — free AI visibility checker for USA & Canada businesses
Local Business FAQ & Schema Generator
Generate 10 AEO-optimized FAQ questions + FAQPage and LocalBusiness JSON-LD schema for your local business — get cited by ChatGPT, Perplexity & Google AI
Structured Data Validator
Fetch your live URL, validate every JSON-LD schema block against schema.org rules, see exact errors with line numbers, and get Claude AI auto-fixed schema ready to copy-paste
AI Search Intent Map
Generate 18 AI search intents for your local business — mapped to content format, schema type and citation potential. Includes gap analysis vs your existing site
GBP AEO Scorer
Score your Google Business Profile description on 10 AEO criteria, get a Claude-rewritten version, 10 weekly post ideas, and a missing attributes checklist
Robots.txt Generator
Generate robots.txt file
Website Speed Checker
Analyze website performance and Core Web Vitals
Meta Description Generator
Generate SEO optimized meta descriptions
Schema Markup Generator
Generate JSON-LD structured data
Internal Link Suggester
Find internal linking opportunities for your new articles instantly
SERP Snippet Preview
Preview exactly how your title, meta description and URL render in Google, Bing and AI Overviews — with truncation warnings
Security Headers Grader
Grade any URL's HTTP security headers A+ to F — HSTS, CSP, X-Frame-Options, Referrer-Policy — with copy-paste fix snippets for Nginx, Apache, Vercel & Cloudflare
Open Graph Validator
Paste any URL — see how its Open Graph and Twitter Card render on Facebook, LinkedIn, X (Twitter), Slack and Discord. Replaces Twitter's killed validator.
Sitemap Visualizer
Fetch and visualize any sitemap.xml — tree view, URL count, duplicate finder, lastmod analysis. Pairs with the SEO Migration Suite.
Keyword Density & N-gram Analyzer
Paste any text — get keyword density, bigrams, trigrams, Flesch-Kincaid readability and over-optimization warnings. No signup.
WHOIS / RDAP Domain Lookup
Free RDAP-based WHOIS lookup — registrar, registration date, expiry, name servers, abuse contacts. No API keys, no signup.
llms.txt Generator
Generate an llms.txt file for your site so ChatGPT, Claude, Perplexity and Cursor can find your best content. Auto-build from your sitemap, or write it by hand.
Word Counter
Count words and characters instantly
Case Converter
Convert text into different case styles
Character Counter
Count characters, words, sentences and readability with social media limits
Text Compare
Compare two texts side by side and highlight every difference instantly
Lorem Ipsum Generator
Generate placeholder text
Markdown to HTML
Convert markdown into HTML
Slug Generator & Diacritics Stripper
Bulk slug generator — paste 1 or 1,000 titles, get clean URL slugs with 12 transliteration schemes (Latin, Cyrillic, Greek, Arabic, Chinese pinyin, German umlauts).
Bulk Email Validator
Validate email addresses with 8 layers — RFC 5322 syntax, live MX lookup, SPF, DMARC, 750+ disposable domains, role detection, typo correction. Score 0–100 per email.
DNS Health Checker
Full DNS audit — checks A, AAAA, MX, NS, SPF, DMARC, DKIM, CAA, CNAME and SOA records. Live checks via Cloudflare. Health grade A+ to F with per-issue fix guidance.
JSON Formatter
Format and validate JSON
Base64 Encoder Decoder
Encode and decode Base64
CSS Gradient Generator
Generate CSS gradients visually
Password Generator
Generate strong passwords
QR Code Generator
Create QR codes instantly
JWT Decoder & Verifier
Decode any JSON Web Token, validate the signature (HS256, HS384, HS512, RS256) with your secret or public key. 100% client-side — your tokens never leave the browser.
cURL to Code Converter
Paste any cURL command — get equivalent code in fetch, axios, Python requests, Go, PHP, Ruby, Node http, Java OkHttp, .NET HttpClient and Rust reqwest. All client-side.
Regex Tester & Cheatsheet
Test JavaScript/PCRE regex live — see all matches, capture groups, replacement preview, full cheatsheet and common-pattern library. No paywall, no ads.
Data Format Converter
Bidirectional converter for CSV, JSON, YAML, TOML, XML and SQL INSERT statements. Drag a file or paste — switch formats instantly. Pure client-side.
Crontab Builder & Decoder
Build cron expressions visually, or paste any cron and get plain-English explanation + next 10 run times. Supports Vixie, Quartz, AWS and Kubernetes formats.
Timestamp & Timezone Converter
Convert Unix epoch ↔ ISO 8601 ↔ human-readable in any timezone. Includes a meeting planner that shows the same instant across up to 8 cities.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 and HMAC hashes for any text or file — using Web Crypto API. Browser-side, your data never uploads.
UUID, ULID & NanoID Generator
Bulk-generate UUID v1/v4/v7, ULIDs, NanoIDs and Snowflake IDs — copy as JSON, CSV, SQL INSERT or plain list. 1 to 10,000 at once.
HTTP Status Codes Reference
Searchable database of every HTTP status code (100–599) with plain-English meanings, examples, retry strategies and RFC links. Daily reference for devs.
Cursor Rules & AGENTS.md Generator
Build a .cursorrules, AGENTS.md, .windsurfrules, CLAUDE.md or copilot-instructions.md file from a guided form — tell your AI coding assistant your stack and conventions.
SGE Readiness Score
Check if your site is ready for Google AI Overview
SaaS Ghost Calculator
Calculate hidden SaaS costs
SaaS Free Tier Stack Builder
Build your complete startup tech stack using only free tier tools
Content Repurposing Multiplier
Turn one piece of content into multiple formats
Programmatic SEO Generator
Generate scalable SEO templates
Information Nugget Extractor
Extract AI-citeable facts and stats to optimize content for SGE
Vibe Coding Stack Suggester
Suggest the best modern development stack
AI Token Counter & Cost Estimator
Count tokens for GPT-4o, GPT-4.1, GPT-4 Turbo, Claude Opus/Sonnet/Haiku, Gemini, Llama and Mistral — and see exactly what your prompt will cost. 100% client-side.
LLM Pricing Comparison
Compare price, context window and capabilities of every major LLM — GPT-4o, Claude, Gemini, Llama, Mistral, DeepSeek — side by side. Live cost calculator built in.
Image Compressor (WebP/AVIF)
Batch-compress JPG, PNG, WebP and AVIF up to 90% smaller — quality slider, before/after preview, batch up to 20 files. Browser-side, never uploaded.
PDF Toolkit
Merge PDFs, split by page range, convert images → PDF, and reorder pages — all 100% in-browser. Files never leave your device. No watermarks, no signup.
Image EXIF Viewer & Stripper
Drag any photo — see every EXIF tag (camera, lens, GPS, software) and strip metadata with one click before sharing. Privacy-first, browser-side.
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