Data Format Validator
Data format validator checks phone, email, ID card, bank card, and IP inputs with batch validation and export support.
Validation Type
Input Data
Validation Results
Enter data to start validation
Validation Rules
China Mainland Phone
11 digits, starts with 1, second digit is 3-9
Sample Format
Examples: 13812345678, 15912345678
Tool Guide
Overview
Data Format Validator quickly checks common business field formats with single or batch input. All processing runs locally in your browser.
Key Features
- Supports phone, email, ID card, bank card, IP, and smart detection mode.
- Supports line-by-line batch validation with real-time valid/invalid feedback.
- Supports copying valid records for secondary processing.
- Supports CSV export for auditing and traceable records.
Use Cases
- Pre-validate registration forms to reduce invalid backend requests.
- Clean marketing lists by filtering malformed entries.
- Validate API payload fields during integration debugging.
- Check field quality before data migration to avoid dirty writes.
How to Use
- Choose a validation type or switch to smart detection mode.
- Paste data and enable batch mode for line-based checks.
- Review result panel and focus on invalid-item messages.
- Copy valid data or export full results as CSV.
FAQ
Is my data uploaded to a server?
No. All validation is executed locally in your browser, and input data never leaves your device.
Why does smart detection show unrecognized?
The input does not match any of the supported five formats. Switch to a specific type to troubleshoot further.
Does CSV export include error details?
Yes. The exported file includes validation result and related message or detail for each entry.