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Free tools.
Small tools for useful work. Compare data, prepare campaign links and plan automation.
4 tools · Browser-local · No account
Compare two lists
Find shared items, differences and duplicate counts.
JSON to CSV converter
Turn a JSON export into a previewable CSV table.
UTM campaign URL builder
Build consistent links for one campaign or several channels.
Automation ROI calculator
Estimate time, operating costs and cash payback separately.
About these tools
Private inputs, practical results
Your inputs and selected files are processed in your browser. No file upload or account is needed. Each tool includes an example, export options and clear limits. Pages and assets load normally; site analytics follow your privacy choice.
More planning calculators
These calculators live inside practical guides, alongside the assumptions behind the numbers.
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