Free Tools
Practical tools that compute your marketing, SaaS and growth metrics in seconds. All free, all client-side — nothing is sent to a server.
//Tools
ARR Calculator
Annual Recurring Revenue calculator for subscription products.
CAC Calculator
Analyse your Customer Acquisition Cost across marketing and sales.
Churn Rate Calculator
Measure your customer churn rate and retention performance.
LTV Calculator
Calculate customer lifetime value and compare it against CAC.
ROAS Calculator
Measure Return on Ad Spend and campaign profitability.
UTM Link Builder
Build UTM-tagged links for accurate campaign attribution.
llms.txt Generator
Create a free llms.txt so AI bots (ClaudeBot, GPTBot, Perplexity) understand your site.