Favicon Checker
Validate favicon declarations
🔒 Files never leave your browser
Check Favicon Tags
Paste the <head> HTML of any page to analyze its favicon and icon declarations.
Found Icon Declarations
No favicon or icon tags found in the provided HTML.
Recommended Sizes Checklist
For optimal cross-browser and cross-device support, include these icon sizes:
Summary
0
Icons Found
0/7
Recommended Covered
—
Web Manifest
—
SVG Icon
How to Use Favicon Checker
Paste HTML
Paste your HTML head content.
Check
See all favicon declarations.
Fix
See which sizes are missing.
Why Choose AllTools Favicon Checker?
- ✓ Size validation
- ✓ Missing detection
- ✓ Format check
- ✓ SVG support
- ✓ Manifest detection
- ✓ No data stored
Why Use This Tool
- ★ Analyze content without sending data to external servers
- ★ Completely free with no usage limits
- ★ No account or registration required
- ★ Instant analysis results in your browser
- ★ Works on any device with a modern browser
Related Resources
Frequently Asked Questions
What favicon sizes do I need? ▼
At minimum: 16x16, 32x32, 180x180 (Apple), 192x192, 512x512 (PWA), and optionally an SVG favicon.
What is the most important favicon size? ▼
The 32x32 ICO file is essential for browser tabs. Also include 180x180 for Apple devices and 192x192 for Android.
Does this work on mobile? ▼
Yes. All AllTools tools are fully responsive and work on phones and tablets.
Related Tools
Image
Favicon Generator
Generate favicons in all sizes with HTML tags from any image
CSS
Favicon Package Generator
Generate a complete favicon package
SEO
Open Graph Preview
Preview how links appear on Facebook, Twitter, and LinkedIn
SEO
Meta Tag Generator
Generate SEO meta tags with Open Graph and SERP preview
Dev
HTML Validator
Check HTML for common issues — errors and warnings
SEO
Structured Data Tester
Validate JSON-LD structured data