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Engineering-as-marketing · Free forever

Free SEO & AI Tools That Actually Finish the Job

22 production-grade tools for keyword research, technical SEO, structured data, media editing and more. Most run 100% in your browser with zero API cost — no signup, no watermark, no limits.

SEO & GEO Agent & Dev Content & Operations Governance & FinOps

Agent & Dev

Agent & Dev⚡ Instant

Schema & llms.txt

Free structured-data generator: build valid JSON-LD (FAQ, Article, Product, Software, Breadcrumb), Open Graph meta tags and an llms.txt file to make your site AI-search ready.

Agent & Dev⚡ Instant

llms.txt Generator

Free llms.txt generator: build a spec-compliant llms.txt file that gives ChatGPT, Claude and Perplexity a curated map of your key pages, with sections, links and notes. Copy or download instantly.

Agent & Dev⚡ Instant

FAQ Schema

Free FAQ schema generator: build valid FAQPage JSON-LD from your questions and answers, preview the FAQ, and export schema that helps Google and AI answer engines read and cite your page.

SEO & GEO

SEO & GEO⚡ Instant

Keyword Research

Free keyword research tool: expand seed terms into hundreds of buyer-intent and question keywords with instant volume estimates, difficulty scores and CSV export. No signup.

SEO & GEO🛡 Guarded AI

SEO Audit

Free SEO audit tool: paste any URL to instantly score title, meta, headings, links, images and technical signals, with prioritised, fix-ready recommendations.

SEO & GEO🛡 Guarded AI

Backlink Analyzer

Free backlink checker: paste your link export to analyse referring domains, anchor-text distribution, dofollow vs nofollow and toxic-link signals — instantly, in the browser.

SEO & GEO⚡ Instant

SERP Preview

Free SERP preview tool: see exactly how your title, URL and meta description will look in Google search results on desktop and mobile, with pixel-accurate truncation warnings.

SEO & GEO⚡ Instant

Meta Description

Free meta description generator: turn a focus keyword and benefit into several Google-ready snippets with live pixel and character length checks, plus copyable title tags and HTML head. No signup.

SEO & GEO⚡ Instant

Keyword Density

Free keyword density checker: analyse any text for 1-word and 2-word phrase density, spot keyword stuffing, and get Flesch readability, word count and reading time instantly. No upload, no signup.

SEO & GEO⚡ Instant

robots.txt Generator

Free robots.txt generator: build a valid robots file with one-tap allow/block rules for AI crawlers like GPTBot, ClaudeBot and Google-Extended, then test any URL against your rules instantly. No signup.

SEO & GEO⚡ Instant

Hreflang Generator

Free hreflang generator: create correct reciprocal hreflang tags in HTML or XML-sitemap form with x-default and self-reference, plus instant validation for duplicate or invalid language codes.

SEO & GEO⚡ Instant

Alt Text Generator

Free alt text generator: turn what is in an image into concise, screen-reader-friendly alt text under 125 characters, with keyword stuffing, “image of” filler and file-name leaks flagged. No upload.

SEO & GEO⚡ Instant

Content Decay

Free content decay checker: score a page’s freshness from its publish date, time-sensitive wording and outdated year references, and get a prioritised refresh list. Runs instantly, no signup.

Governance & FinOps

Governance & FinOps⚡ Instant

AI Cost Calculator

Free AI cost calculator: estimate daily, monthly and yearly LLM API spend from your token usage across popular models, compare providers and find the cheapest option instantly.

Governance & FinOps🛡 Guarded AI

AI Readiness (llms.txt)

Free AI-readiness (GEO) checker: audit any site for an llms.txt file, valid JSON-LD, LLM-crawler robots rules and sitemap so ChatGPT, Claude and Perplexity can cite you.

Content & Operations

Content & Operations⚡ Instant

Diagram Maker

Free online diagram tool: turn plain text into flowcharts, sequence, ER and Gantt diagrams instantly in your browser, then export SVG or PNG. No account, no watermark.

Content & Operations⚡ Instant

Image Editor

Free online photo editor: crop, resize, compress and convert images to JPG, PNG or WebP right in your browser. Your files never leave your device.

Content & Operations⚡ Instant

Audio Editor

Free online audio editor: trim, normalise volume and convert MP3, WAV, M4A or OGG files in your browser with a live waveform. No upload, no install.

Content & Operations🛡 Guarded AI

Translation

Free online translation tool: translate text between 50+ languages with tone and glossary controls. Instant results with a transparent, rate-limited free tier.

Content & Operations⚡ Instant

OCR Text Extract

Free online OCR tool: extract selectable text from images and scans (JPG, PNG, TIFF, WebP) in 100+ languages. Runs 100% in your browser — your files are never uploaded.

Content & Operations⚡ Instant

Readability Score

Free readability score calculator: check any text against six formulas including Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG and ARI, with the longest sentences and complex words flagged. Instant and private.

Content & Operations⚡ Instant

Reading Time

Free reading time calculator: estimate how long an article takes to read, read aloud or skim using adjustable words-per-minute presets, with automatic image and paragraph overhead. No signup.

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