Encode & Crypto
Base64 Encode / Decode
Encode text to Base64, or decode it back.
Encode & Crypto
ROT13
Apply the ROT13 letter substitution cipher.
Tool Panel
Processed locallyAbout ROT13
ROT13 is a simple substitution that replaces each letter with the one 13 places after it. Only letters are processed; everything else stays as it is Self-inverse: apply it again to restore the text Often used to hide spoilers or lightly obfuscate text
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Batch image processing saves time and effort
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Support for conversion between multiple data formats
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Support for multiple encryption algorithms
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Enter or paste your content
Type, paste, or drop your content into the input box.
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Choose processing options
Select the processing options you need, and the tool will show results in real-time.
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Copy or download results
Click copy to clipboard, or download the result as a file to your device.
Apply the ROT13 letter substitution cipher. It belongs to the Encode & Crypto group and runs entirely in your browser — nothing you type or paste is uploaded.
MD5, SHA-1, SHA-256, SHA-512, Base64 and other common encoding and hashing algorithms.
Hash algorithms (MD5, SHA) are one-way and cannot be decrypted. Base64 can be decoded.
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