Private by design
Inputs are processed locally. Tools do not upload your pasted data.
BROWSER-LOCAL UTILITIES
Useful work.
Nothing leaves your browser.
Useful browser tools for calculations, data conversion, and validation. Your inputs stay in your browser.
Everyday tools, clearly built
3 reviewed tools ready to use.
CSV to JSON Converter
Convert quoted CSV rows into JSON in your browser without sending file contents to a server.
Open tool →JSON Validator and Formatter
Validate and pretty-print JSON locally, with a clear parsing error when the input is invalid.
Open tool →Percentage Calculator
Calculate a percentage of a value and the resulting total locally in your browser.
Open tool →No account needed
Open a tool and work immediately, without a signup wall.
Reviewed scope
Only allow-listed browser logic can be generated by the factory.