Convert TOML tables, arrays of tables and simple key = value pairs into formatted JSON.
TOML to YAML Converter
Runs locally
Use TOML to YAML Converter
What it does
Convert a simple TOML configuration into block-style YAML with two-space indentation.
It runs entirely in your browser: nothing you enter is uploaded.
Example
Server config
title = "Report feed"
[server]
host = "127.0.0.1"
port = 8080
tls = true
tags = ["web", "api"]
[[owners]]
name = "alice"
[[owners]]
name = "bob"title: Report feed
server:
host: "127.0.0.1"
port: 8080
tls: true
tags:
- web
- api
owners:
-
name: alice
-
name: bobtitle: Report feed, a server mapping with host written as "127.0.0.1" and a tags list, and an owners list of two mappings.
FAQ
Which TOML input does it understand?
The same subset as the TOML to JSON converter: [table] and [[array]] headers, and key = value lines with quoted strings, numbers, booleans and one-line arrays. A # inside a quoted value is read as a comment, and multi-line arrays, inline tables and dotted keys are not supported.
When are strings quoted in the YAML?
When they are empty, start with a digit, equal true, false or null, or contain a YAML indicator such as a colon, comma, bracket, brace, #, &, *, ?, |, >, %, @, backtick or exclamation mark. Words like yes, no, on and off stay unquoted, and YAML 1.1 parsers read those as booleans, so quote them by hand.
Is the file uploaded?
No. The conversion runs in your browser, and nothing leaves the page.