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.properties / .env ⇄ JSON Converter

Convert between .properties (.env) and JSON locally in your browser.

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

Frequently asked questions

Is my data uploaded?

No. Everything runs locally in your browser.

What is supported?

Java-style .properties with comments (# or ;), key separators (= : space), escapes, and line continuations.

Can I copy or download?

Yes. Copy to clipboard or download results.

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Frequently asked questions

What are .properties and .env files?
.properties files are Java\\
How do I convert .properties to JSON?
Paste your properties content. The tool parses key=value pairs into JSON object properties. Dotted keys (like app.database.host) can optionally be expanded into nested objects for hierarchical JSON structure.
Are comments preserved during conversion?
Comments (lines starting with # or !) are stripped during conversion to JSON. If you need to preserve comments, keep the original .properties file. When converting back from JSON, comments must be re-added manually.
How are special characters handled?
Standard escape sequences (\\\\n, \\\\t, \\\\\\\\, \\\\=) are interpreted. Values containing equals signs after the first are preserved. Unicode escapes (\\\\uXXXX) are converted to actual characters. Keys with spaces use backslash escaping in .properties.
Can I convert nested JSON to flat .properties?
Yes, nested JSON objects are flattened using dot notation. {\\\"app\\\": {\\\"db\\\": {\\\"host\\\": \\\"localhost\\\"}}} becomes app.db.host=localhost. Array indices use bracket notation: items[0].name=value.

About This Tool

Convert between .properties (.env) 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: properties to json, json to properties, .env converter, properties 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