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Tools / Formatters & Beautifiers

TOML Formatter & Beautifier

Serialize a supported TOML table and review type and comment changes.

Input

Up to 100,000 bytes. The contents determine validity; filename and MIME type never change the selected formatter.

Content-only hints, up to16,384 characters, checked on Run/file load or your request. Filenames and MIME types never select a tool. Ambiguous text may fit more than one format. Switching keeps source and never processes it automatically.

0 characters

Output preview

Work through the task
Serialize a supported TOML table.
  1. Enter a table-root TOML document and format it.
  2. Review strings, numbers, booleans and table structure. Null and unsupported source types are rejected.
  3. Review the result before copying or downloading. Editing an input invalidates the previous result; keep an original if the transformation matters.
Example to check
v = "007" keeps the leading-zero identifier as text.
Limits and output behavior
Source is limited to 100,000 characters. JSON/YAML/TOML have 10,000 values and 40 data levels; XML has separate node/attribute and element-depth guards. Comments, numeric spelling and other lexical formatting may normalize. YAML aliases/custom tags and TOML null values are unsupported.
Troubleshooting
Use a table/object root and valid TOML types. Remove null values and duplicate definitions; quote text identifiers with leading zeros.
Questions
Can TOML represent a JSON null directly?
No. This supported TOML representation has no null value. Choose a different data representation explicitly rather than silently substituting text.
Input and privacy
Processing runs in this browser. Inputs are not saved automatically. An explicitly chosen local draft, where offered, is plaintext storage on this device. Downloaded files, clipboard contents and browser extensions have separate retention behavior.