URLs-LE: Zero Hassle URL Extraction

Extract 10,000+ URLs per second • 100x faster than manual searching
HTML, CSS, JavaScript, JSON, YAML, XML, TOML, INI, Properties, Markdown, and more

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URL Extraction Demo

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⚡ See It In Action

Before: Manually searching through HTML/CSS for broken links (20 minutes)

<link href="https://cdn.example.com/style.css" />
<img src="https://images.example.com/logo.png" />
<!-- ... 100 more URLs scattered across files -->

After: One command extracts all 103 URLs in 0.5 seconds

https://cdn.example.com/style.css (line 5)
https://images.example.com/logo.png (line 8)
https://api.example.com/users (line 45)
... (103 URLs total)

Time Saved: 20 minutes → 1 second ⚡

✅ Why URLs-LE?

10,000+ URLs per second - 100x faster than manual searching
Zero Config - Install → Press Cmd+Alt+U → Done
Battle-Tested - 347 unit tests, 95% coverage, zero critical vulnerabilities
Security-Hardened - 83 tests prevent URL injection, SSRF attacks, protocol exploitation

Perfect for API audits, link validation, and resource tracking.

🙏 Thank You

If URLs-LE saves you time, a quick rating helps other developers discover it:
⭐ Open VSX • VS Code Marketplace

Key Features

Automatic cleanup - Sort, dedupe, and filter by protocol or domain
10+ file formats - HTML, CSS, JavaScript, JSON, YAML, XML, Markdown, TOML, INI
Smart filtering - Excludes data: URIs and javascript: pseudo-protocols
Fast at scale - Process large documentation and config files efficiently
13 languages - English, Chinese, German, Spanish, French, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Ukrainian, Vietnamese

🚀 More from the LE Family

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Scrape-LE - Validate scraper targets before debugging • VS Code Marketplace
Colors-LE - Extract and analyze colors from stylesheets • VS Code Marketplace
Dates-LE - Extract temporal data from logs and APIs • VS Code Marketplace

💡 Use Cases

Web Auditing - Extract all links and resources from HTML/CSS for validation
API Documentation - Pull API endpoints from docs and code for cataloging
Link Validation - Find all external URLs for broken link checking
Resource Tracking - Audit CDN and asset URLs across your project

🚀 Quick Start

Install from Open VSX or VS Code Marketplace
Open any supported file type (Cmd/Ctrl + P → search for "URLs-LE")
Run Quick Extract (Cmd+Alt+U / Ctrl+Alt+U / Status Bar)

⚙️ Configuration

URLs-LE has minimal configuration to keep things simple. Most settings are available in VS Code's settings UI under "URLs-LE".

Key settings include:

Output format preferences (side-by-side, clipboard copy)
Safety warnings and thresholds for large files
Notification levels (silent, important, all)
Status bar visibility
Local telemetry logging for debugging

For the complete list of available settings, open VS Code Settings and search for "urls-le".

🌍 Language Support

13 languages: English, German, Spanish, French, Indonesian, Italian, Japanese, Korean, Portuguese (Brazil), Russian, Ukrainian, Vietnamese, Chinese (Simplified)

🧩 System Requirements

VS Code 1.70.0+ • Platform Windows, macOS, Linux
Memory 200MB recommended for large files

🔒 Privacy

100% local processing. No data leaves your machine. Optional logging: urls-le.telemetryEnabled

⚡ Performance

URLs-LE is built for speed and efficiently processes files from 100KB to 30MB+. See detailed benchmarks.

Format	File Size	Throughput	Duration	Memory	Tested On
JSON	1K lines	1,382,278	~1.58	< 1MB	Apple Silicon
CSS	3K lines	1,048,387	~0.31	< 1MB	Apple Silicon
HTML	10K lines	298,122	~4.26	< 1MB	Apple Silicon

Note: Performance results are based on files containing actual URLs. Files without URLs (like large JSON/CSV data files) are processed much faster but extract 0 URLs.
Real-World Performance: Tested with actual data up to 30MB (practical limit: 1MB warning, 10MB error threshold)
Performance Monitoring: Built-in real-time tracking with configurable thresholds
Full Metrics: docs/PERFORMANCE.md • Test Environment: macOS, Bun 1.2.22, Node 22.x

For detailed information, see Performance Monitoring.

🔧 Troubleshooting

Not detecting URLs?
Ensure file is saved with supported extension (.html, .css, .js, .json, .yaml, .md)

Large files slow?
Files over 10MB may take longer. Consider splitting into smaller chunks

Need help?
Check Issues or enable logging: urls-le.telemetryEnabled: true

❓ FAQ

What URLs are extracted?
HTTP/HTTPS, FTP, mailto, tel, file URLs (excludes data: and javascript: pseudo-protocols)

Can I deduplicate?
Yes, enable urls-le.dedupeEnabled: true to remove duplicates automatically

Max file size?
Up to 30MB. Practical limit: 10MB for optimal performance

Perfect for web projects?
Absolutely! Audit API endpoints, asset references, and external links for broken URLs

📊 Testing

347 unit tests • 95% function coverage, 86% line coverage
Powered by Vitest • Run with bun run test:coverage

Core Principle

No broken or failed tests are allowed in commits. All tests must pass before code can be committed or merged.

Test Suite Highlights

83 security tests for URL injection & SSRF prevention
71 edge case tests for extraction logic & performance
37 tests for JavaScript/TypeScript URL extraction
34 tests for content limits, cancellation, and error handling
Comprehensive coverage of all file formats and protocols

For detailed testing guidelines, see Testing Guidelines.

URLs-LE

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