Free TOML Tools
Free online TOML tools for converting, editing, and validating TOML configuration files. Convert TOML to JSON, YAML, XML — all in your browser.
Available Tools
CSV to TOML Converter
Convert CSV data to TOML format
ENV to TOML Converter
Convert .env files to TOML configuration
INI to TOML Converter
Convert INI files to TOML format
JSON to TOML Converter
Convert JSON objects to TOML format
Properties to TOML Converter
Convert Java properties files to TOML
TOML Beautifier/Formatter
Format and beautify TOML files
TOML Comment Remover
Remove comments from TOML files
TOML Diff/Compare
Compare two TOML files and highlight differences
TOML Key/Value Extractor
Extract specific keys or values from TOML
TOML Merge Tool
Merge multiple TOML files into one
TOML Minifier/Compressor
Minify TOML by removing whitespace and comments
TOML Schema Generator/Validator
Generate or validate TOML schemas
TOML to CSV Converter
Convert TOML data to CSV format
TOML to ENV Converter
Convert TOML to .env file format
TOML to Go Struct Converter
Generate Go structs from TOML
TOML to Java Properties Converter
Convert TOML to Java properties format
TOML to JavaScript Object Converter
Convert TOML to JavaScript objects
TOML to JSON Converter
Convert TOML to JSON format
TOML to Markdown Table Converter
Convert TOML to Markdown tables
TOML to PHP Array Converter
Convert TOML to PHP arrays
TOML to Properties Converter
Convert TOML to Java properties
TOML to Python Dictionary Converter
Convert TOML to Python dictionaries
TOML to Ruby Hash Converter
Convert TOML to Ruby hashes
TOML to Rust Struct Generator
Generate Rust structs from TOML
TOML to SQL Converter
Convert TOML data to SQL INSERT statements
TOML to TypeScript Interface Generator
Generate TypeScript interfaces from TOML
TOML to XML Converter
Convert TOML to XML format
TOML to YAML Converter
Convert TOML to YAML format
TOML Validator/Linter
Validate TOML syntax and structure
XML to TOML Converter
Convert XML to TOML format
Need More Config Tools?
Check out our YAML tools or JSON tools for more configuration utilities.
What These TOML Tools Do
This is a collection of 29 free TOML tools that run entirely in your browser. No software installation, no server uploads, no waiting. You paste TOML content or upload files, click a button, and get results instantly.
The tools cover four main workflows: converting TOML to other formats (JSON, YAML, XML, programming language structures), converting other formats to TOML (JSON, YAML, INI, CSV, ENV), editing and validating TOML (formatter, minifier, validator, diff), and extracting or merging TOML data.
How to Use These Tools
Most tools follow the same pattern:
- Paste your TOML content or upload a .toml file
- Select the conversion or operation type
- Adjust settings like indentation or type inference
- Copy the result or download as a file
Everything happens client-side using JavaScript TOML parsers. Your data stays in your browser tab and never touches any server.
Who Uses These Tools
Rust developers work with Cargo.toml files, generate Rust structs from configuration, or convert between dependency formats.
Python developers use TOML for Poetry configuration, convert requirements.txt to TOML, or generate Python dictionaries from TOML.
DevOps engineers convert configuration between formats (JSON, YAML, INI, TOML), validate configuration files, or merge configurations from multiple sources.
Web developers work with Hugo static site configuration, convert theme settings between formats, or generate TypeScript interfaces from configuration schemas.
Tool Categories
Format Conversion to TOML
JSON to TOML, YAML to TOML, XML to TOML, INI to TOML, CSV to TOML, ENV to TOML, and Properties to TOML converters transform various formats into TOML structure.
TOML to Data Formats
TOML to JSON, TOML to YAML, TOML to XML, TOML to CSV, TOML to INI, TOML to Properties, TOML to ENV, TOML to Markdown Table converters transform TOML to other data formats.
TOML to Code Generation
TOML to Go Struct, TOML to Rust Struct, TOML to TypeScript Interface, TOML to C# Class, TOML to PHP Array, TOML to Python Dictionary, TOML to Ruby Hash, TOML to JavaScript Object, TOML to Java Properties converters generate code from TOML.
TOML to SQL
TOML to SQL Converter generates INSERT statements from TOML data for database seeding.
TOML Editing
TOML Beautifier/Formatter indents and formats TOML. TOML Minifier/Compressor removes whitespace. TOML Comment Remover strips comments. TOML Merge Tool combines multiple files.
TOML Validation
TOML Validator/Linter checks syntax. TOML Schema Generator/Validator validates structure. TOML Diff/Compare highlights differences. TOML Key/Value Extractor pulls specific data.
Limitations and Gotchas
TOML spec versions: TOML 1.0 is current standard. Some tools may not support all TOML 1.0 features like inline tables or arrays of tables.
Type inference: Converting from untyped formats (JSON without schema) may infer incorrect types. Review generated code before use.
Nested structures: Deep nesting may not convert cleanly to flat formats like INI or ENV. Complex tables may require manual adjustment.
Code generation: Generated structs and interfaces are starting points. You may need to add validation, methods, or custom fields.
Why 1000freetools
TOML tools often mean installing language-specific packages, writing conversion scripts, or using command-line tools. But sometimes you need to quickly convert a Cargo.toml to JSON, validate a Hugo config, or generate a Go struct from TOML. These tools exist because configuration shouldn't require a build process. Everything runs in your browser — no installation, no dependencies, no friction.