JSON Validator
Parses JSON syntax to report whether the document is valid and where an error may occur.
Parses JSON syntax to report whether the document is valid and where an error may occur.
Checks pasted XML for well-formed markup and reports parsing errors. It does not validate the document against an XSD or DTD schema.
Parses pasted HTML with the browser DOM parser and reports readability. Browser error recovery means this is not a standards conformance validator.
Parses pasted YAML and reports whether the parser accepts its syntax. It does not check application-specific configuration requirements.
Applies a JavaScript regular expression globally and lists each full match with its zero-based index.
Tests a pattern against sample text with the JavaScript RegExp engine, not a Java runtime, and returns full matches with zero-based positions.
Evaluates an XPath expression against pasted XML and returns the selected node values as JSON for inspecting document queries.
Runs a JSONPath expression against valid JSON and returns the selected values as a JSON array; use the root path to inspect the whole document.
Parses a cron expression and lists its next five scheduled dates. It previews a schedule and does not create or run background jobs.
Checks XML tag structure with the XML parser and reports a well-formed result or syntax error; schema and business rules are not checked.
Compares two pasted text blocks and shows added and removed content so revisions can be inspected without changing either input.
Shows differences between a source text and a comparison text, with a readable change view for checking line edits and copied revisions.
Parses two JSON documents and compares differences in their structures and values.
A category for validity checks, pattern testing, and parser-oriented utilities. This category groups 13 tools you can compare and open right away.
It includes tools such as JSON Validator, XML Validator, HTML Validator, YAML Validator, Regex Tester.
Browse this category when you want to pick the best tool before starting a Validation / Testing / Parsers task.