Data processing

Encode text to Base64, or decode Base64 back to plain text.

Decode BSON hex dumps into a readable tree and encode JSON back to BSON hex.

Preview the first rows of a CSV file with delimiter detection and row and column counts.

Turn CSV rows into a JSON array of objects, using the first row as the header.

Turn CSV rows into a GitHub-flavoured Markdown table with an optional header row.

Generate CREATE TABLE and INSERT statements from CSV rows with inferred column types.

Check a CSV file: delimiter, quoting, column count consistency and a preview.

Compare two texts and show the added, removed and unchanged lines.

Turn CREATE TABLE statements into a Mermaid or Graphviz entity-relationship diagram.

Beautify or minify GraphQL queries, mutations and fragments with brace validation.

Compress and decompress gzip, zlib and raw deflate payloads given as text or Base64.

Escape or unescape HTML entities in a string.

Strip HTML markup down to readable plain text while keeping block boundaries.

Validate JSON syntax with precise line and column errors, then beautify, minify or sort the keys.

Infer a draft 2020-12 JSON Schema from a sample JSON document.

Validate a JSON document against a JSON Schema and list every violation.

Flatten a JSON array of objects into CSV rows.

Convert a JSON document into XML, using the @attribute and #text conventions.

Convert a JSON document to YAML, or a YAML document back to JSON.

Validate tolerant JSON5 with comments, trailing commas, single quotes and unquoted keys.

Convert between JSON Lines and a JSON array in either direction.

Evaluate a JSONPath expression against a JSON document.

Drop duplicate lines while keeping the original order, optionally ignoring case.

Validate MongoDB-style queries and aggregation pipelines against known operators.

Convert an integer between base 2, 8, 10, 16 and 36, with arbitrary precision.

Pretty-print a SOAP envelope with consistent indentation while preserving CDATA.

Detect common SQL performance problems such as SELECT star and missing WHERE clauses.

Format or minify SQL with uppercase keywords, one clause per line and indented subqueries.

Convert a temperature between Celsius, Fahrenheit and Kelvin and show all three scales.

Convert between Unix timestamps and readable dates.

Convert a wall-clock time between two IANA time zones with offsets and DST state.

Convert a TOML document to JSON, keeping key order where the decoder allows.

Validate a TOML document and list its top-level keys with their value types.

Percent-encode text for use in a URL, or decode a percent-encoded string.

Pretty-print a WSDL document and list the operations it exposes.

Check that an XML document is well-formed (mismatched or unclosed tags) and re-indent it.

Convert an XML document into JSON, using the @attribute and #text conventions.

Convert a YAML mapping to TOML and refuse documents TOML cannot represent.

Validate YAML syntax, catch indentation errors and normalize the indentation.