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License Checker

Look up open source software licenses and understand their terms

Input
License Details
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📖 What is this tool?

License Checker provides detailed information about open source software licenses — permissions, conditions, limitations and plain-English explanations. Look up MIT, Apache-2.0, GPL-3.0, BSD and more to understand what you can and cannot do.

💡 Example

Input
MIT
Output
MIT License ✅ Commercial use, Modification, Distribution ⚠️ Include license and copyright ❌ No restrictions

🛠️ Common Use Cases

  • Check if a license allows commercial use
  • Understand copyleft requirements before using a library
  • Verify license compatibility in your project
  • Learn what attribution is required
  • Decide which license to use for your project

❓ Frequently Asked Questions

Can I use MIT-licensed code in commercial projects?
Yes — the MIT license is very permissive. You can use, modify and distribute MIT code in commercial projects as long as you include the original copyright notice and license text.
What is the difference between MIT and Apache-2.0?
Both are permissive licenses. Apache-2.0 additionally includes an explicit grant of patent rights from contributors, which provides better legal protection for users of the software.
Can I combine GPL and MIT code?
MIT code can be combined with GPL code, but the combined work must be released under GPL. This is why many companies avoid GPL dependencies — it may require open-sourcing their entire application.
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Your data stays private. All processing happens entirely in your browser. Nothing is ever sent to our servers. You can use this tool offline after the page loads.