JavaScript Encryption Tool [FREE]
Free online tool to encrypt and decrypt data in your browser. Works with AES-256 and different modes like CBC, CTR, and CFB. No installation needed. Open-source and safe to use.
JavaScript Encryption Tool - Easy Guide
This tool helps you make your text secret and safe. Only people with the password can read the secret text.
What You Can Do
- Make your text secret (Encrypt)
- Turn secret text back to normal (Decrypt)
- Choose different ways to protect your text (CBC, CTR modes)
How to Use the Tool
Follow these steps to use the tool:
- Step 1: Type your text in the first box.
- Step 2: Make a secret key (password). Example: "mysecret123"
- Step 3: Choose a method. Use "CBC" for best results.
- Step 4: Click "Encrypt". Your secret text will appear.
- Step 5: Copy the secret text. To read it again, paste it back, use the same key and method, then click "Decrypt".
How to Test if the Tool Works
Do this simple test to check:
- 1. Type in the input box:
Hello World - 2. Secret key:
test123 - 3. Select mode:
CBC - 4. Click:
Encrypt - 5. Copy the secret text that appears
- 6. Paste it back in the input box
- 7. Use the same key:
test123 - 8. Keep the same mode:
CBC - 9. Click:
Decrypt - 10. You should see your text:
Hello World
If you see "Hello World" again, the tool is working perfectly.
What You Will See
When you encrypt: You will see random letters and numbers. This is your protected text. Example: U2FsdGVkX19KX8T6VYw7hQK6p45v6c7VfzQJ9w4jW3E=
When you decrypt: You will see your original text. It will be readable again.
If You Have Problems
- Problem: "Decryption failed" message.
- Solution: Use the exact same secret key you used for encryption.
- Problem: Text does not decrypt.
- Solution: Use the same method (like CBC) you used for encryption.
- Problem: "Please enter text" or "Please enter secret key" message.
- Solution: Make sure both the text box and the secret key box are filled.
Important Tips for Success
- Always remember your secret key. You cannot open the secret text without it.
- For a strong key, mix letters, numbers, and symbols. Example:
MyKey#2024 - Always test with a simple text (like "Hello") before you encrypt important messages.
- Use the same settings (key and mode) for both encrypt and decrypt.
Who Should Use This Tool?
This tool is perfect for:
- Students who want to learn about keeping data safe.
- Anyone who wants to send a private message.
- People who want to protect their passwords or notes.
- Beginners who want a simple and free tool.
Final Note: This tool is free and works in your browser. Your data never leaves your computer, so it is safe and private.