Revenue-driven SEO
Free SEO tools

SEO tools that work for free

Seven working tools — checkers, analyzers and generators — built by a working SEO agency. No signup, no trial, no email gate. Everything runs in your browser and nothing you paste is uploaded anywhere.

AI & on-page

LLM SEO Toolkit

Check how ready your page is for ChatGPT, Perplexity and AI Overviews — 18 AI-visibility checks — and generate a valid llms.txt file for your site.

Check AI readiness →

On-Page SEO Checker

Paste any page's HTML and get a scored audit of title, meta, headings, alt text, schema, links, indexability — plus keyword placement checks.

Audit a page →
Research & forecasting

Keyword Gap Analyzer

Paste your keywords and a competitor's, see exactly which terms they rank for that you don't — sorted by search volume, exportable to CSV.

Find the gaps →

SEO Forecasting Tool

Forecast traffic, conversions and revenue keyword by keyword using real CTR curves and a realistic 12-month ramp — with a chart you can screenshot.

Build a forecast →
Content & SERP

SEO Content Analyzer

Score a draft before it ships: Flesch readability, sentence and paragraph length, passive voice, transition words, keyword density and placement.

Analyze a draft →

SERP Snippet Preview

See exactly how your title and meta description render in Google — desktop and mobile — with pixel-accurate truncation, not character guesses.

Preview a snippet →
Reporting

White-Label SEO Report Generator

Turn this month's metrics into a branded, print-ready client report — your logo, your color, keyword movement table, highlights and next steps.

Build a report →

SEO Calculators (10 more) ↗

ROI, budget, traffic value, forecasting, page speed revenue loss, local SEO, e-commerce and more — our full suite of SEO business calculators.

Open the calculators →

Tools show you the problem. We fix it.

Every tool here is a snapshot of what we check on day one of an engagement. If the scores worry you — or the gap analysis stings — that's exactly the conversation to have with us.

Talk to ThrillSEO →

SEO audits from €399 · Strategy from €2,500/month · thrillseo.com

All tools run entirely client-side in your browser — nothing you paste, type or upload leaves your machine. Free to use, no signup. Built by ThrillSEO.