About SEO Site Checker

Great SEO tools
free for everyone.

We built SEO Site Checker because professional SEO tools shouldn't cost $139 a month. 100+ tools, zero paywalls for freelancers, bloggers, small businesses, and developers worldwide.

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Free Tools & Counting
Across 11 categories: SEO, image, domain, dev & more
$0
Forever Free
No paid plans, no credit card
6
Paid Tools Replaced
Semrush, Ahrefs, SE Ranking & more
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Our Mission

SEO shouldn't be a luxury for big budgets.

When we built SEO Site Checker, we started from a frustrating observation: the tools website owners actually need day-to-day. An SEO audit, a domain checker, an image compressor, were all locked behind expensive subscriptions built for enterprise teams.

Semrush costs $139/month. Ahrefs raised its prices 50% in 2024. SE Ranking charges $64/month. For a freelancer or small business owner, that's a real barrier and an unnecessary one.

SEO Site Checker exists to remove that barrier entirely. Every tool here is free not free-with-limits, not free-for-14-days, but permanently, unconditionally free.

SEO tools should be like a calculator, available to anyone who needs them, without a monthly subscription just to do basic maths.

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Free forever, no exceptions

No premium tier, no freemium traps. Every tool available today will remain free. That's not a marketing promise, it's how the platform is structured.

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Built for real people, not enterprises

Freelancers, bloggers, students, developers, these are the people we build for. Not Fortune 500 teams with six-figure software budgets.

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Simple, not dumbed down

Clear, actionable results without needing a certification to understand them. Professional-grade output without the professional-grade complexity.

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Continuously improving

New tools, bug fixes, updates from real user feedback. The platform you use today is better than six months ago and will keep getting better.

Our Story

How SEO Site Checker was built

1

The frustration that started it all

We were freelancers and small business owners ourselves. Every time we needed to check a domain's authority or audit a website, we hit a paywall. The free tools that existed were cluttered, unreliable, or constantly pushing upgrades.

2

Building the first tools

We built the tools we needed: a clean SEO score checker, a domain authority checker, a proper WhoIs lookup. Simple, fast, no paywalls interrupting the workflow.

3

Growing the toolkit

Users kept asking for more, image compressor, JSON formatter, QR code generator, binary converters. We kept building. The philosophy never changed: build it right, keep it free.

4

Where we are today

100+ tools across 11 categories, used daily by freelancers, bloggers, developers, and small businesses around the world. Still free. Still growing.

How We Stay Free

Ad-supported, not subscription-dependent.

The platform is funded by non-intrusive ads, not investor pressure to add paywalls or premium tiers. Ads fund the servers, the development, and the team so users never pay a cent.

We've deliberately stayed focused on tools that website owners, developers, and content creators actually use every day not on building enterprise dashboards with features that sit unused.

Platform at a glance

Total free tools 100+
Tool categories 11
Paid plans None
Account required to start No
Competitor pages published 6
Annual cost to users $0
What We Offer

100+ free tools across 11 categories

View all tools →
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Website SEO Tools
Full SEO audit, screenshot generator, HTML viewer, WordPress theme detector, XML formatter, code minifiers.
Browse →
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Domain Tools
Domain authority checker, WhoIs lookup, domain age, DNS records, blacklist checker, IP address location.
Browse →
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Tags Tools
Meta tag generator & analyzer, Open Graph generator, Twitter Card generator, preview your SERP snippet.
Browse →
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Image Tools
Image compressor, resizer, JPG ↔ PNG converter, favicon generator, reverse image search, no watermarks.
Browse →
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Developer Tools
JSON formatter, validator, beautifier, editor, JSON ↔ XML converter. Everything for structured data work.
Browse →
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Password Tools
Secure password generator, strength checker, MD5 hash generator, WordPress password generator.
Browse →
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Unit Converters
11 converters: weight, length, temperature, speed, pressure, area, volume, torque, voltage, power and time.
Browse →
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Binary Converters
Text ↔ Binary, Hex ↔ Binary, ASCII ↔ Binary, Decimal ↔ Hex and more. Essential for developers.
Browse →
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Text Analysis
Case converter, reverse text, image-to-text (OCR), RGB ↔ Hex, word combiner, article rewriter.
Browse →
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Calculators
Age, percentage, average, sales tax, discount, and probability calculators, fast and accurate.
Browse →
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Video Tools
Growing video toolkit for content creators and website owners, more tools being added regularly.
Browse →
Who We're Built For

Anyone who manages a website or works online

SEO Site Checker isn't built for enterprise agencies. It's built for the people who actually do their own website work.

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Freelancers
Manage client sites without paying $100+/month for tools you use occasionally.
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Bloggers
Audit posts, check meta tags, compress images, fix SEO issues, all in one place.
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Small Businesses
Professional-grade website tools without enterprise pricing.
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Students
Learn SEO and web development with real tools, no student discount needed.
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Developers
JSON, XML, binary tools, code minifiers, no subscriptions needed.
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Agencies
Run quick audits and utility tasks without burning premium tool credits.
How We Compare

The free alternative to every major paid SEO tool

Every tool in this space charges for things SEO Site Checker gives away free. Here's where we stack up.

vs Semrush $139–$499/mo
$0 vs $139/mo
Industry-leading platform for agencies. SEO Site Checker is the free alternative for everyone who doesn't need that complexity.
See full comparison →
vs Ahrefs $129–$1,499/mo
$0 vs $129/mo
Ahrefs raised prices 50% in 2024 and added credit limits. No credits, no limits, no monthly bill here.
See full comparison →
vs SE Ranking $64–$207/mo
$0 vs $64/mo
Solid rank-tracking platform. If you don't need daily keyword monitoring, SEO Site Checker covers the rest at zero cost.
See full comparison →
vs SEO Site Checkup $29–$89/mo
$0 vs $29/mo
Removed their free tier entirely. We give you a full SEO audit and 100+ tools, permanently free, no account required.
See full comparison →
vs Small SEO Tools Freemium
$0 vs paid Pro plans
Claims to be free but paywalls its most popular features. Every single tool here is genuinely free.
See full comparison →
vs Sitechecker.pro $59–$349/mo
$0 vs $59/mo
Charges $5 per one-time audit. We audit any website, unlimited times, completely free forever.
See full comparison →
Our Promise

What you can always count on from us

Not aspirational values written for a pitch deck, how the platform actually operates.

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Always free, no exceptions
No plans to introduce paid tiers or paywalls on existing tools. The platform is funded by ads, not subscriptions. That model won't change.
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No data selling, no spam
We don't sell user data to third parties. We don't send marketing spam. Creating a free account stays private, always.
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Honest, accurate results
Every tool gives real, accurate results. We don't inflate SEO scores to make you feel good or show misleading data to nudge upgrades. What you see is what your site actually looks like.
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Actively maintained
Tools are kept current. When Google changes something, we update the audit. When users find bugs, we fix them. This isn't abandoned software.

Start using the tools.
Right now.

No account required. No credit card. No 14-day trial. Just 100+ free tools, ready immediately.

Run Free SEO Audit → Browse All 100+ Tools

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