VCard Validator Online

Validate vCard files and text for format compliance and errors

Request Feature / Support

7,592+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

AI Web Tool Generator

Build Your Own Custom Web Calculator in Seconds

Type what tool or calculator you need below. Our AI will build it instantly for your site.

About This Tool

This vCard Validator Online tool allows you to validate vCard files (.vcf) or text against vCard 3.0 and 4.0 specifications. Upload your vCard file or paste vCard text to check for formatting errors, missing required properties, and compliance issues. The tool provides detailed validation results including property breakdown, detected errors, and warnings with line numbers. Perfect for developers working with contact data, vCard generators, or anyone needing to verify vCard format correctness.

Save your calculation history with a free account

How to Use

Paste vCard text into the textarea OR click the upload area to select a .vcf file
Click the 'Validate vCard' button to start validation
View detailed results including property count, validation status, and any errors
For multiple vCards in one file, each vCard will be validated separately
Use the 'Clear' button to reset the form and start over

Frequently Asked Questions

Find Quick Answers

What vCard versions does this validator support?

This validator supports both vCard 3.0 (RFC 2426) and vCard 4.0 (RFC 6350) specifications. It automatically detects the version based on the BEGIN:VCARD and VERSION properties.

What types of errors does the validator detect?

The validator checks for missing required properties, invalid property syntax, incorrect line folding, encoding issues, and compliance with vCard specifications. It also validates property values like dates, URLs, and email formats.

Can I validate multiple vCards at once?

Yes, if your file or text contains multiple vCard entries (separated by BEGIN:VCARD/END:VCARD blocks), the validator will process each one separately and provide individual validation results.

Is my vCard data secure?

All validation happens entirely in your browser - no data is sent to any server. Your contact information remains private and secure on your device.

What file formats are supported?

The tool supports .vcf files (vCard format) and plain text containing vCard data. You can either upload a .vcf file or paste vCard text directly into the textarea.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

Related Tools

Other useful calculators and utilities you might like

Spotify to MP3 Converter

Convert Spotify tracks and playlists to MP3 format instantly with our free online converter.

Road Distance Calculator

Calculate the driving distance and travel time between two addresses with our free online road dista...

Age Calculator

Calculate your exact age in years, months, and days from any birth date to any target date.

Currency Converter

Convert currencies instantly with real-time exchange rates and historical data support.

Your Feedback Matters

Help Us to Improve