TOML Formatter
About TOML Formatter
The TOML (Tom's Obvious Minimal Language) Formatter and Pretty Printer standardizes and beautifies TOML configuration files (Cargo.toml, pyproject.toml, Netlify, Hugo) with clean section sorting, key alignment, and table normalization.
How to Use TOML Formatter
Step 1
Paste your raw TOML configuration into the editor.
Step 2
Click "Format TOML".
Step 3
Inspect the beautified TOML output.
Step 4
Click "Copy TOML" or "Download .toml".
Practical Use Cases for TOML Formatter
Rust & Python Project Configuration (Cargo & PyProject)
Format and organize `Cargo.toml` and `pyproject.toml` configuration files with aligned key-value pairs and ordered dependency tables.
Static Site Generator & Hugo Config Standardization
Beautify Hugo static site `config.toml` files for readability and team consistency.
Input & Output Examples
Formatting Unaligned TOML
[package]\nname="renderxd"\nversion="1.0.0"\n[dependencies]\nserde={version="1.0"}[package]\nname = "renderxd"\nversion = "1.0.0"\n\n[dependencies]\nserde = { version = "1.0" }Key Features & Performance
- ✓Formats TOML 1.0 specifications with configurable key-value assignment alignment.
- ✓Properly indents nested inline tables, array of tables (`[[table]]`), and multi-line strings (`"""`).
- ✓Syntax error reporting with exact line and column highlights.
- ✓100% Client-Side memory execution guarantees configuration confidentiality.
- ✓1-Click Copy and 1-Click `.toml` download.
Key Terminology & Definitions
TOML (Tom's Obvious Minimal Language)
A minimal configuration file format designed to be easy to read due to obvious semantics, widely used in Rust (Cargo) and Python (Poetry/Pip).
Table Section (`[table]`)
A collection of key-value pairs defining a dictionary in TOML surrounded by square brackets.