HISTORICAL CONTEXT
Classical ciphers show that reversibility alone is not security. This browser-only workbench follows the move from letters to bits.
LAB EXPERIENCE
Explore Caesar shifts, ROT13, substitution mapping, and an isolated XOR bit visualizer with harmless sample text only.
BROWSER-ONLY SAFETY BOUNDARY
All transformations happen locally in your browser. The lab does not transmit entered text, access external systems, attack anything, or handle credentials. Use only example text—not real secrets.