Convert INI & .properties Files to JSON Instantly (Auto-Detect Format)
Convert INI configuration files and Java .properties files to JSON format instantly. Paste any INI file — php.ini, app.ini, Windows .ini — or a Java .properties file with dotted keys and get clean, structured JSON output. Supports section headers, inline comments, quoted values, boolean coercion (true/false/yes/no/on/off), numeric parsing, continuation lines, and Unicode escapes.
How to Use INI / Properties to JSON Converter
How to Use the INI / Properties to JSON Converter
Step 1: Paste Your Config File
Paste the contents of your INI or .properties file into the input panel. The conversion is instant.
INI example:
[database]
host = localhost
port = 3306
enabled = true
Output:
{
"database": {
"host": "localhost",
"port": 3306,
"enabled": true
}
}
Step 2: Select the Format
- Auto — the tool inspects your input and picks INI or .properties automatically. Use this when unsure.
- INI — use for files with
[section]headers (php.ini, Windows .ini, app configs). - .properties — use for Java-style files with dotted key names (
database.host=localhost).
Step 3: Choose JSON Indent Style
- 2 spaces — compact and widely supported (default)
- 4 spaces — more readable for deeply nested configs
- Compact — minified, no whitespace
Step 4: Copy or Download
- Copy JSON — copies the output to your clipboard
- Download — saves an
output.jsonfile
Format Reference
INI format
| Feature | Example | Notes |
|---|---|---|
| Section header | [database] | Creates a nested object |
| Key=value | host = localhost | Both = and : work |
| Comment | ; comment or # comment | Skipped entirely |
| Quoted value | name = "My App" | Quotes are stripped |
| Inline comment | port = 3306 ; default | Stripped after value |
| Boolean true | debug = yes | yes, on, true → true |
| Boolean false | debug = no | no, off, false → false |
| Numbers | port = 8080 | Parsed as JSON number |
| No section | key = value | Goes to root level |
.properties format
| Feature | Example | Notes |
|---|---|---|
| Dotted key | db.host=localhost | Creates nested { "db": { "host": ... } } |
| Comment | # comment or ! comment | Skipped entirely |
| Colon separator | host: localhost | Equivalent to = |
| Whitespace separator | host localhost | Key ends at first whitespace |
| Continuation | value = line1 \ | Backslash joins next line |
| Unicode escape | name = \u0041pp | Decoded to character |
| Escaped separator | key\=name = val | = in key name |
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