Free tools for marketing, sales and e-commerce

Check campaign metrics, compare experiment results and prepare tracking links. These tools are free to use without an account.

Start with a task

• Price email marketing for your listThe plan that covers your contacts and automations, the monthly cost and what is not confirmed.Plan · purchase file
• Check a campaign's returnROAS, break-even and what is left after ads, three scenarios side by side.PDF report
• Compare customer cost and valueCAC, LTV, the ratio and payback from your own figures.PDF report
• Is your A/B test significant?Uplift, p-value and the interval for the difference.PDF report
• Build a tracking linkTagged links with presets and history kept in your browser.Copy link

Campaign performance

• CAC and LTVEnter acquisition spend, new customers, revenue, margin and lifespan to compare what a customer costs with what they bring in.PDF report · scenarios
• Conversion rateDivide conversions by visitors to get your conversion rate.PDF report · scenarios
• Engagement rateEnter followers and average likes and comments per post to get an engagement rate.PDF report · scenarios
• ROASCalculate revenue per unit of ad spend. Add your margin to estimate the return needed to cover advertising costs.PDF report · scenarios

Customers and revenue

• Churn rateEnter customers at the start of a period and customers lost to get the churn rate.PDF report · scenarios
• Cohort retention and LTVProject how a cohort shrinks and what it earns from its size, revenue per user and monthly retention.PDF report · scenarios
• DiscountSee the sale price and the amount saved for a given discount.PDF report · scenarios
• Pricing tier revenueEnter up to three tier prices and how customers spread across them to see MRR, ARR and blended ARPU.PDF report · scenarios

Experiments

• A/B test significanceEnter visitors and conversions for two variants to check whether the difference is statistically significant.PDF report · scenarios
• A/B test sample sizeEnter your baseline conversion rate and the smallest lift you want to detect to see how many visitors each variant needs.PDF report · scenarios

Content and tracking

• Subject line testerCheck a subject line's length, word count, emoji, capitals and common spam-trigger words, with an inbox preview.Copy result
• Keyword densityPaste content to list its most-used words and how often they appear.Copy result
• Readability checkerPaste text to get its Flesch Reading Ease score, grade level and sentence statistics.Copy result
• URL slug generatorTurn a title into a clean, lowercase URL slug.Copy result
• UTM link builderAdd utm_source, utm_medium and campaign tags to a link, and save presets in your browser.Copy result

Before you buy

• Email marketing plannerEnter your list size and what you need to see the plan that covers it, the monthly cost at your list size, and what is not confirmed.
• Before You RenewCheck a subscription before it renews: find your notice deadline, see unused licences, and get the questions to ask your supplier.Decision sheet
• Software Test DriveBuild a test plan for the software you are about to buy, record what worked in each product, and compare them on a decision sheet.Decision sheet

The calculations run in your browser. Each tool page explains what the result means and where its limits are.