TextArray vs Cryptii
Updated August 26, 2026
Cryptii is "modular conversion, encoding and encryption online": you stack operations into a chain and watch text flow through them. Its own page states that "translations are done in the browser without any server interaction", and the project is open source under the MIT licence.
On the property that matters most — nothing leaves the machine — Cryptii and TextArray agree completely. The difference is shape.
Where Cryptii is strong
- Open source under MIT, so the claim about client-side processing is auditable rather than asserted.
- The modular chain view is elegant, and better than a page-per-tool for exploring an unknown encoding.
- Purpose-built for the cryptography-and-encoding niche it covers.
TextArray takes the opposite structural decision: one tool, one URL, one job — Base64, ROT13, Vigenère, Bacon, Baudot, Polybius, rail fence, Atbash, XOR, hex, Base32, Base58, Base62, Base45 and the rest each get their own page with their own explanation. That is worse for exploration and better for finding: you can land directly on the operation you need.
For chaining, TextArray has a separate pipeline builder that runs several tools in sequence, plus saved recipes for common chains. What it does not have is Cryptii's single continuous view, and for puzzle work that view is genuinely nicer.