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Convert a JSON object into an urlencoded form body.

Parse an urlencoded form body into JSON.

Render JSON as nested HTML tables and lists.

Convert a JSON object into TOML.

Parse TOML into JSON.

Convert JSON into indentation-based CSON.

Parse CSON back into JSON.

Generate random JSON documents.

Generate random newline-delimited JSON.

Generate random TOML documents.

Generate random CSON documents.

Generate random bencode documents.

Decode BSON documents into MongoDB Extended JSON.

Generate random BSON documents as a downloadable .bson file.

Keep the array items whose field matches a rule.

Group array items into an object keyed by a field.

Concatenate two JSON arrays (optionally de-duplicated). Separate them with ---.

Merge two JSON objects. Separate them with ---.

Show added, removed and changed paths. Separate the documents with ---.

Locate keys or values matching a query, with their paths.

Split text on a separator into a JSON array.

Normalise single quotes and unquoted keys into strict JSON.

Repair comments, trailing commas, smart quotes and unquoted keys.

Introduce one documented corruption to test parsers and formatters.