Inspect and prepare regex, HTTP, CSS, JavaScript, SQL, XML, Markdown, hashes and identifiers.
Run JavaScript regular expressions and inspect indexes, captures and named groups.
Escape text for literal use in a regular expression and optionally wrap it with anchors.
Parse raw HTTP headers into a structured table or JSON object.
Build a URL from a base address and editable key-value query parameters.
Indent CSS rules and declarations while protecting comments and quoted strings.
Remove comments and unnecessary whitespace while protecting quoted strings.
Remove comments and unnecessary whitespace from small JavaScript snippets conservatively.
Break common SQL clauses and comma-separated lists into readable lines.
Validate XML with the browser parser and indent nested elements for reading.
Preview common Markdown locally and export sanitized HTML for simple documents.
Generate SHA-256, SHA-384, SHA-512 or legacy SHA-1 for text and files.
Validate canonical UUIDs and identify versions, RFC variants and the nil value.
These tools are grouped for faster navigation, but each operation still runs in the current browser. Favorites, recent tools and local usage counts remain on this device and can be cleared or exported from the home page.