Private, browser-local utility
TOML to JSON Converter
Parse TOML 1.0 data and serialize it as formatted JSON locally.
Your input and result stay in this browser tab. Nothing is uploaded, fetched, executed, logged, or stored.
Loading local tool…
Result
Parser and mapping
V1 uses the pinned BSD-licensed smol-toml 1.9.1 browser-local parser for TOML 1.0 syntax, including tables, dotted keys, arrays of tables, strings, arrays, dates/times, and numeric forms. Output uses native JSON serialization.
TOML date/time values become ISO strings. Non-finite floats and large integers are stringified with an explicit warning when accepted; unsupported or unsafe values fail clearly. Input is limited to 1 MB and output to 5 MB.