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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.

Generate a plausible fake dataset (fakeson).

Render JSON as HTML with syntax highlighting classes.

Render JSON as an indented tree with box-drawing characters.

Query JSON with a documented jq subset: .key, .a.b, .[0], .a[0], keys, values, length, type, first, last, |.

Wrap list items in an XML document.

Extract the text of XML elements into a list.

Generate a random XML document.

Render list items as a YAML sequence.

Read a YAML sequence back into a list.

Generate a random YAML document.

Draw a JSON document as a framed bar picture.