Most "free SEO audit" tools hand you a score and a report, then ask for a credit card the moment you want to know what to actually do about it. Here is an honest side-by-side of the best free SEO audit tools in 2026 - what each checks, where it is genuinely free, and which ones tell you how to fix what they find.
| Tool | Genuinely free tier | Plain-English fixes | AI-written fixes | AI-visibility check | No signup to start |
|---|---|---|---|---|---|
| HopHQ | Yes | Yes | Yes (paid) | Yes | Yes |
| SEOptimer | Limited | Partial | No | No | No |
| Sitechecker | Trial | Partial | No | No | No |
| SEO Site Checkup | Limited | Partial | No | No | No |
| Seobility | Yes (capped) | Partial | No | No | No |
| Ubersuggest | Daily cap | Partial | No | No | No |
All are real, credible tools. The split that matters: most stop at a report, and only some tell you what to actually do. Details below.
Paste your URL and HopHQ's free audit grades your site across 40+ signals, explains every issue in plain English, and on paid plans writes the exact title tag, meta description, or schema block to paste in. It also runs an AI-visibility check - whether ChatGPT and Google's AI Overviews can find and cite you - which most audit tools ignore. Where it stops: no white-label client reports today. Best for: owners and marketers who want the fix, not just the report.
Get your score and every issue in plain English - with the fixes - free, in under a minute.
Audit My Site FreeA long-running audit and reporting tool, popular with agencies for white-label PDFs and an embeddable audit widget. The free audit is a teaser; the useful parts are paid. Best for: agencies that live on white-label reporting. (More detail: HopHQ vs SEOptimer.)
A polished SEO monitoring platform with site audits, rank tracking, and change alerts. It is a paid SaaS with a trial rather than a genuinely free tool. Best for: teams wanting ongoing monitoring and willing to pay for it.
Runs a broad technical checklist and gives a score with pass/fail checks. The free version is limited to a handful of checks or audits before it asks you to upgrade. Best for: a quick one-off technical scan.
Has a genuinely useful free tier (capped pages per day) covering on-page and technical basics. Solid for a free check, but the guidance is technical and there is no AI-fix or AI-visibility angle. Best for: a free technical crawl if you are comfortable reading SEO terms.
Neil Patel's tool leans toward keyword research and competitive data, with a site audit included. The free tier is capped to a few searches or audits per day. Best for: keyword research first, audits second.
If you want ongoing monitoring or white-label client reports, a paid platform earns its cost. If you just want to know what is wrong with your site and exactly how to fix it - for free, without a signup wall - start with a plain-English free audit. There is no single "best," just the right fit for whether you want a report to read or fixes to apply.
Get your score and every issue in plain English - with the fixes - free, in under a minute.
Audit My Site Free