Does TOML Formatter upload my file or text to Tool-You servers?

No. TOML Formatter runs in this browser tab. Files stay on the device. Limit note: Comments and original key order may change. Max 500,000 characters.

Should I use TOML to JSON instead of TOML Formatter?

Use TOML Formatter when you need Parse TOML and dump it again. Use TOML to JSON when you need Parse TOML into JSON. They share a category (Developer) but not the same job.

What are the limits of TOML Formatter?

Comments and original key order may change. Max 500,000 characters. Also: Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved.

TOML Formatter

Parse TOML and dump it again.

Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved.

What TOML Formatter does

Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved.

The interactive controls for TOML Formatter load after this article so crawlers still read the instructions. Path /developer/toml-formatter is the canonical address. Work happens on this device; Tool-You does not take a copy of the file or pasted text for TOML Formatter.

How to use TOML Formatter

Keep this tab on TOML Formatter (/developer/toml-formatter). Pasting into the wrong Developer tool (for example TOML to JSON) changes the job.
Paste or type the input TOML Formatter expects. Path hint: developer · toml formatter. Parse TOML and dump it again.
Apply the TOML Formatter action only. JSON to TOML is a different transform (Dump a JSON object as TOML.). Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved.
Copy the output of TOML Formatter if you need it elsewhere. Size/complexity still follows: Comments and original key order may change. Max 500,000 characters.
If the text job is actually Parse TOML into JSON., leave TOML Formatter and open TOML to JSON.

When not to use TOML Formatter

Skip TOML Formatter when a neighbor tool matches better — start with TOML to JSON or JSON to TOML — or when the description already warns the job will fail. In the tool’s own words: Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved.

Questions about TOML Formatter

What does TOML Formatter do that other Developer pages on this site do not?: Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved. Short version: Parse TOML and dump it again.
Does TOML Formatter upload my file or text to Tool-You servers?: No. TOML Formatter runs in this browser tab. Files stay on the device. Limit note: Comments and original key order may change. Max 500,000 characters.
Should I use TOML to JSON instead of TOML Formatter?: Use TOML Formatter when you need Parse TOML and dump it again. Use TOML to JSON when you need Parse TOML into JSON. They share a category (Developer) but not the same job.
What are the limits of TOML Formatter?: Comments and original key order may change. Max 500,000 characters. Also: Round-trip through smol-toml parse then stringify. Invalid TOML fails. Comments are not preserved.