The Cipher Lab is your all-in-one platform for exploring classical ciphers, analysing cryptographic patterns, and sharing ideas through interactive tools and community posts.
Paste ciphertext → try tools → test ciphers → save your progress in Labs.
Your solving desk for longer problems. Save attempts, keep notes, and run tools without losing your place.
Use Labs when you’re working on something that takes more than a few minutes.
Best when you don’t know the cipher or key. Paste “mystery text” and get instant leads.
Got a key? Use the fast encoder/decoder for clean conversions and testing.
Frequency analysis, helpers, and utilities — everything in one place.
Compete globally, solve the weekly cipher, and climb the leaderboard.