Tool Category: developer-tools

This tool gives a quick browser-based check for well-formed XML and formats a small document so nested elements and attributes are easier to inspect.

This explainer turns common five-field cron syntax into a visible field-by-field summary so you can catch obvious mistakes before adding a scheduled job.

This builder makes the structure of a small JavaScript regular expression visible instead of hiding it behind a generated opaque string.

This calculator derives the network address, broadcast address, host range, and address count for a basic IPv4 CIDR block.

This tool creates UUID v4 values for examples, fixtures, and local testing without requiring a server request.

This tool calculates a repeatable digest for a text input so users can compare whether two inputs produce the same SHA-256 output.

This tool provides a small, visible test loop for a JavaScript pattern so users can inspect matches before placing the expression into application code.

This tool makes it easier to inspect Unix timestamps and compare them with a readable date-time in the browser’s local time zone.

This tool converts text to the Base64 representation used in many transport and test contexts, and it reverses Base64 text back into Unicode text when the input is valid.