Extract Keys and Values from TOML

Quickly find and extract specific configuration values from large TOML files. Use dot-notation paths or regex to query nested tables and get just the data you need.

Extract Keys and Values from TOML

Query and extract specific configuration values from TOML files using dot-notation or regex.

TOML Input

Query Pattern

Use dot-notation (e.g., database.host) or regex (e.g., ^.*.port$)

Export Format:

How the TOML Key-Value Extractor Works

This tool queries and extracts specific values from TOML files. Use dot-notation paths or regex patterns to find matching keys. Export results as JSON, TOML, or CSV for further processing or analysis.

Extraction Process

Paste your TOML content into the input area
Enter a query pattern (dot-notation or regex)
Select export format: JSON, TOML, or CSV
Click "Extract Values" to search
Matching keys and values are collected
Results are formatted in your chosen export format
Copy or download the extracted data

Specific Use Cases

Configuration Auditing

A security team extracts all password-related keys from configs. Query pattern ".*password.*" finds sensitive fields.

Environment Variable Extraction

A developer extracts database settings for deployment scripts. Query "database.*" gets all database configuration.

Documentation Generation

Auto-generate documentation by extracting all config keys. Export to JSON for processing into documentation.

Config Validation

Extract required keys to verify they exist in a config file. Missing keys indicate incomplete configuration.

Data Analysis

Extract numeric values from TOML for statistical analysis. Export to CSV for import into spreadsheet tools.

What to Know Before Using This Tool

Understanding query patterns:

Dot-notation: database.host matches exactly that key
Partial match: host matches any key ending with .host
Regex: ^.*\.port$ matches all port keys
Empty query returns all keys
Export formats: JSON (structured), TOML (config), CSV (tabular)
Nested values are flattened in CSV export

Frequently Asked Questions

What query formats are supported?

Exact dot-notation (database.host), partial matches (host), and regex patterns (start with ^ for regex mode).

How do I match all keys in a section?

Use the section name as query: "database" matches database and all nested keys like database.host.

What export format should I use?

JSON for programmatic processing, TOML for config reuse, CSV for spreadsheet analysis or data import.

Can I extract nested values?

Yes, nested values are extracted with their full path. database.connection.host extracts the nested host value.

What if no keys match my query?

The result will be empty. Try a broader pattern or check your query syntax for errors.

How does regex mode work?

Start your query with ^ to enable regex mode. Example: ^.*\.port$ matches all keys ending in .port.

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Extract Keys and Values from TOML