Overview
Postal Code Extractor automatically detects postal codes from mixed text. It supports strict mode, deduplication, and sorting for address cleanup and logistics data workflows.
Key Features
- Real-time postal code extraction
- Strict mode for China 6-digit postal codes only
- Optional deduplication and numeric sorting
- Result copy and TXT download
How to Use
- Paste text containing addresses or numbers
- Enable dedup/sort/strict mode as needed
- Review results and copy single codes or all output
FAQ
What is the difference between strict and non-strict mode?
Strict mode extracts only 6-digit China postal codes. Non-strict mode allows broader possible formats.
How does sorting work?
Codes are sorted in ascending numeric order.
Is my data secure?
Yes. Processing runs locally in your browser without uploading your text.