Sometimes your configuration data starts in a spreadsheet. Our CSV to TOML converter allows you to transform flat tabular data into rich, hierarchical TOML files, making it perfect for migrating datasets into configuration files.
What is CSV to TOML Conversion?
This process takes raw rows and columns and organizes them into TOML tables. Using dot notation in CSV headers, you can even create complex nested structures automatically.
Why Use Our CSV to TOML Converter?
- Unflatten dot-notation columns into nested TOML tables
- Bulk process large CSV files in seconds
- Automatic data type detection for numbers and booleans
- Privacy-first: everything happens in your local browser
- Instant download of the generated .toml file
- Completely free with no limits
How to Convert CSV to TOML
Paste CSV Data
Input your spreadsheet data. Ensure the first row has headers.
Use Dot Notation
Optionally use `user.name` in headers to create nested tables.
Review Tables
Check the output to see how rows are mapped to TOML array of tables.
Export
Copy the result or download as a .toml file.
Key Features
Dot Notation Unflattening
Transforms columns like `app.server.ip` into triple-nested TOML tables.
Array of Tables
Converts each row into an entry in a `[[data]]` array of tables.
Smart Parsing
Correctly identifies numbers, booleans, and null values in your CSV.
Custom Delimiters
Supports commas, tabs, and semicolons.
Best Practices
- Clean your CSV headers to remove spaces before converting
- Use consistent dot notation for all hierarchical paths
- Check for duplicate column names that might cause collisions
- Preview the first few rows to verify the unflattening logic
Common Use Cases
Project Initialization
Bulk generating configuration files from a master spreadsheet.
Data Migration
Importing tabular business data into TOML-based system settings.
CMS Export
Transforming CSV records into a TOML data source for static sites.
Frequently Asked Questions
How is nesting handled?
We use dot notation in the headers. For instance, a column named "metadata.version" creates a table [metadata] with a key "version".
Can I convert TOML back to CSV?
Yes! The tool can flatten complex TOML hierarchies into a simple CSV table.
What is the maximum file size?
The tool handles files up to 50MB comfortably in most modern browsers.
Is it safe?
Yes, our tool never uploads your data to any server.
Ready to Get Started?
100% browser-based. Your data never leaves your device.
Open CSV to TOML Converter