Converters, viewers, formatters and validators — fast, local, private. Sign up once and run every tool; your data never leaves your machine.
Turn a JSON array of records into CSV, with proper escaping.
Convert XML into JSON, attributes and text nodes included.
Convert JSON into XML, with sensible element names and nesting.
Turn a CSV (or TSV, ; and | files) into a JSON array of records — headers become keys.
Turn an X12 or EDIFACT file into readable XML — in your browser, nothing uploaded.
Turn an X12 or EDIFACT file into JSON — the shape you map from.
Turn an SAP IDoc into JSON — the shape you map from.
Turn a WSDL's operations, messages, and types into JSON.
Encode text to Base64 — payloads, certificates, attachments.
Decode Base64 back to text, UTF-8 safe.
Percent-encode text for URLs and query strings.
Decode percent-encoded URL text back to readable form.
Read a JWT's header and claims — it never leaves your browser, and we never verify the signature.