Are comments preserved in the .env file?

During .env to JSON conversion, comment lines (starting with #) are automatically ignored and will not appear in the JSON output. JSON itself does not support comments, so they are discarded during conversion. If you need to keep comments, please back them up separately.

How are multi-line values handled?

When a value is wrapped in double quotes and contains newlines, the tool correctly recognizes it as a multi-line value. For example VAR="line1\nline2" would be parsed as a string containing a newline. When converting back to .env, values containing newlines are also automatically wrapped in double quotes.

What does the export prefix do?

Some .env loaders (like dotenv) do not need the export prefix, but shell scripts require export to make variables available to child processes. When this option is enabled, the output format changes to export KEY=VALUE, suitable for sourcing directly in a shell.

What JSON formats are supported?

Standard JSON object format (key-value pairs) is supported. Values in JSON are converted to strings in the .env output. Nested objects and arrays are serialized via JSON.stringify. Numbers, booleans, etc. are also converted to their string representation.

Env Variable Converter

Convert between .env and JSON

.env → JSON JSON → .env

.env Input

JSON Output

Env Variable Converter Usage Guide

Key Features

.env → JSON - Parse .env file into JSON object
JSON → .env - Convert JSON object to .env format
Comment Support - Automatically ignores lines starting with #
Quote Handling - Supports single and double quoted values
Multi-line Values - Supports newlines within double quotes
export Prefix - Optional export KEY= format when converting JSON to .env

Use Cases

Docker Compose environment variable configuration
Convert env files to/from JSON in CI/CD pipelines
Kubernetes ConfigMap configuration conversion
Manage frontend project .env files visually
Export JSON configuration files to .env format

Env Variable Converter

Env Variable Converter Usage Guide

Key Features

Use Cases

常见问题

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