Pretty-print and convert structured data. All 10 tools below run locally in your browser — nothing is uploaded.
Structured data is readable right up until it is not: a minified API response, a one-line SQL query, a CSV that needs to become objects. These tools pretty-print, validate and convert between the formats that configuration and API work runs on.
The formatters validate as they go, so a stray comma or an unbalanced brace is reported with the exact position rather than a generic failure. The converters cover the pairs that come up in practice — CSV and JSON, .env and JSON, JSON to YAML, and JSON to TypeScript interfaces generated from a sample payload.
Yes — CSV and JSON in both directions, .env and JSON in both directions, JSON to YAML, JSON to TypeScript interfaces, a delimited list to a Markdown table, and Markdown to HTML. The formatters — JSON, SQL and XML — reshape a format rather than change it.
It never leaves your browser, so there is nothing to intercept in transit or retain on a server. That is the main reason to use a local formatter for anything from a real system.
Twenty, including PostgreSQL, MySQL, SQLite, BigQuery, Snowflake, T-SQL and Oracle — dialect matters because each one quotes identifiers and breaks clauses differently.