Format Java .properties files into a clean, readable structure. Align key-value pairs, sort keys, preserve comments, detect duplicate keys, find empty values, and prepare configuration files for easier review.
This tool produces a cleaned or analyzed result for Properties File Formatter. The result card shows the main output, issue counts, practical interpretation, and a quality score from 0 to 100.
The output is generated locally in your browser. Review production configuration files or academic submissions before final use.
Use the sample button to load a realistic example for Properties File Formatter, then change options to see how the output and score respond.
Processing is rule-based and designed for transparent formatting, counting, sorting, removal, and quality scoring. It does not send your text to a server.
For strict production formats, verify the final output with your runtime, linter, validator, or assignment requirements.
Paste the .properties content, choose alignment or sorting options, and run the formatter to clean spacing and key-value structure.
Duplicate keys can override earlier values or create confusing behavior depending on how the application loads the file.
Both styles can work, but consistent spacing makes configuration easier to review and maintain.
This formatter counts empty values and keeps them visible so you can decide whether they are intentional.
Use sorting, comment preservation, duplicate detection, and empty value checks before copying the cleaned result back into your project.
| Module | Purpose |
|---|---|
| Input parser | Reads pasted text and uploaded files. |
| Processor | Applies selected formatting, cleanup, sorting, removal, or counting logic. |
| Quality score | Scores readability, completeness, structure, or safety indicators. |
| Export | Provides TXT, CSV, and JSON downloads. |