Password Strength Checker
Estimate password strength without sending it anywhere.
Free, runs entirely in your browser. No server, no tracking, no sign-in.
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Encode text to Base64 and decode it back.
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Decode a JWT header and payload without verifying it.
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Generate a strong random password locally.
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Encode and decode HTML entities.
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Encode text to Morse code and decode it back.
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Apply the ROT13 letter rotation, twice returns the original.
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Convert text to hexadecimal and back.
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Convert text to 8-bit binary and back.
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