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TOML ⇄ JSON Converter

Convert between TOML and JSON locally in your browser.

🌐 Uses API
Also try:Historical Age Calculator·Pet Age Calculator·Relationship Timeline

Frequently asked questions

What is TOML?

TOML (Tom’s Obvious, Minimal Language) is a config file format that is easy to read due to obvious semantics.

Is the conversion private?

Yes. All processing happens in your browser; no data is sent to our servers.

Does it support complex structures?

Yes, it handles nested tables, arrays of tables, and various data types.

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Frequently asked questions

What is TOML and when is it used?
TOML (Tom\\
How do I convert TOML to JSON?
Paste your TOML content and click Convert. Tables become JSON objects, arrays of tables become arrays of objects, and scalar values convert to appropriate JSON types (strings, numbers, booleans, dates become ISO strings).
What TOML features are supported?
The converter handles all TOML 1.0 features: basic and literal strings, integers, floats, booleans, dates/times, arrays, tables, inline tables, and arrays of tables. Multi-line strings and dotted keys work correctly.
Can I convert JSON back to TOML?
Yes, bidirectional conversion is supported. JSON objects become TOML tables, arrays become TOML arrays. Some JSON structures may need adjustment as TOML is more strict (e.g., mixed-type arrays require special handling).
Why use TOML over JSON or YAML for configuration?
TOML advantages: supports comments (unlike JSON), unambiguous syntax (unlike YAML\\

About This Tool

Convert between TOML and JSON locally in your browser.

Key Benefits

How This Tool Works

  1. 1Enter your information in the input fields above
  2. 2Results calculate automatically in real-time
  3. 3Copy, share, or download your results as needed
  4. 4All processing happens locally in your browser for privacy

When to Use This Tool

Pro Tip:

Why Use INSINEX Tools?

Privacy First

Your data never leaves your device. All calculations happen locally in your browser.

Instant Results

No waiting, no loading—results appear immediately as you type.

Works Everywhere

Access from any device with a browser. Many tools even work offline.

Related topics: toml to json, json to toml, toml converter, json converter

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Privacy

Most processing happens locally in your browser for speed & privacy. Network calls occur only for live rates or updates.

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Premium

Premium feature

Historical analysis & trends

Track your past calculations and visualize patterns.

Calculation presets

Save, load, and manage your favorite calculation setups.

No presets saved yet.

Scenario planning

Compare multiple inputs side-by-side.

Batch processing

Upload a CSV to compute results in bulk.

Custom formulas

Create and reuse your own rules.

External data

Connect Google Sheets or an API as inputs.

By paying you agree to our Terms & Conditions • Privacy Policy • Shipping Policy • Cancellation & Refunds

Free Tier Usage0/100 calculations today
Premium feature

Historical analysis & trends

Track your past calculations and visualize patterns.

Calculation presets

Save, load, and manage your favorite calculation setups.

No presets saved yet.

Scenario planning

Compare multiple inputs side-by-side.

Batch processing

Upload a CSV to compute results in bulk.

Custom formulas

Create and reuse your own rules.

External data

Connect Google Sheets or an API as inputs.

By paying you agree to our Terms & Conditions • Privacy Policy • Shipping Policy • Cancellation & Refunds