CastleFile is an innovative file encryption tool. Castlefile uses chess moves as unique keys for secure, client-side file encryption of any size and any type online for free. It uses the SHA-256 hashing algorithm and AES encryption to ensure top-notch data protection. castlefile is a revolutionary platform that brings together the art of chess and encryption technologies to ensure the highest level of security for your files.
Neither side has the advantage (+ 0 ).
No check, checkmate, or draw.
Secure any desktop file type or size—documents, photos, or videos—without restrictions, for maximum flexibility.
CastleFile uses SHA-256 hashing and AES-GCM locally, ensuring your data never leaves your device and remains under your control.
Uses your favorite chess moves as dynamic, personal encryption keys, making each file uniquely secured by strategy.
Questions about Chess based File Encryption ? Answers below!
Chess moves deliver dynamic, unpredictable, personal patterns, vastly increasing key complexity and eliminating vulnerabilities common to static passwords or reused PINs.
CastleFile supports any desktop file type or size—documents, images, videos, archives—and all processing is local. It works on mobile browsers, though very large files perform best on desktop.
By using client‑side AES‑GCM with SHA‑256‑derived keys from unique chess moves and storing no data or keys on servers, CastleFile delivers true zero‑knowledge privacy and tamper‑proof encryption.
Privacy‑conscious individuals, professionals with sensitive data, and chess lovers seeking an engaging yet powerful encryption method—all with no technical setup required.
Yes. Built‑in chess move suggestions guide non‑players through creating strong, unique encryption keys easily, without needing prior chess expertiseYes. Built‑in chess move suggestions guide non‑players through creating strong, unique encryption keys easily, without needing prior chess expertise.