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Free CRO tools for marketers.
For marketers running lead-gen pages: where a page leaks, what a lead costs, and the specs you keep looking up. Each answer points to what to fix next.
Measure
Work out where you stand.
Plan
Get the next campaign right.
Reference
Look it up, then get back to work.
How they work
Each tool asks for a few numbers or a page address, gives you one answer with its meaning, and points to the next step. Calculators compare against sourced medians, and the scanner hands your result to Crow when you want the full fix list.
Questions? Contact us
Before you start
Do I need an account?
No. The tools on this page work without signing in. Crow only asks for an email if you choose to have a result emailed to you.
What happens to my data?
Numbers you type into calculators are used in your browser to work out the result. If you choose Email me this, or run the scanner, the details you submit are sent to us to deliver that result. See the privacy policy for specifics.
Are they really free?
Yes, there is no charge. Some tools, such as the Page Scanner, may limit how often you can run them to keep them available for everyone.
Keep learning
When you want the why, not just the number.
- The CRO Guide →Ten chapters, plain English.
- CRO Glossary →Terms defined in a sentence.
- Landing page inspiration →Examples that convert, by industry.
Learn
How this is worked out
How to use the free CRO tools
- Choose the tool that matches the question you need to answer.
- Enter your own campaign or website data, or select a media channel.
- Review the result, then scan the page your visitors land on to find the next improvement.
Common questions
Are the Crow tools free?
Yes. You can use these tools and see their results without creating an account. The scanner's full Crow report is a separate sign-up step.
Which tool should I start with?
Start with the page scanner if you want to review a landing page. Use the conversion rate or cost per lead calculator when you already have campaign figures to compare.
Do I need to give you my email address?
No. Your results stay visible without email. Some tools offer an optional results email, with the consent and unsubscribe details shown before you send.
Should I treat the reference figures as delivery specifications?
Use them for planning, then confirm the current requirements with the platform or media owner. Calculator ranges are illustrative guidance; your own campaign history is the better comparison.