# encrypt.tools > Free online cryptography tools that run entirely in your browser: AES > encryption, RSA/ECC key generation, SHA hashing, password KDFs, encoding, > classical ciphers and secure password generation. Nothing entered into any > tool ever leaves the device. ## Tool categories - [Symmetric Encryption](https://encrypt.tools/symmetric): AES, ChaCha20-Poly1305, Salsa20, RC4 and XOR — encrypt and decrypt with block and stream ciphers. - [Public-Key Cryptography](https://encrypt.tools/asymmetric): RSA, ECC/ECDSA, Ed25519/X25519, PGP and SSH key generation, plus RSA message encryption. - [Hashing & Checksums](https://encrypt.tools/hashing): SHA family and related digest/checksum generators. - [Password Hashing & KDF](https://encrypt.tools/kdf): Argon2, bcrypt, NTLM and other key-derivation functions. - [Encoding & Radix](https://encrypt.tools/encoding): Base64, hex and other encodings and radix conversions. - [Classical Ciphers & CTF](https://encrypt.tools/classical): Caesar, Vigenère, Rail Fence, Baconian and Playfair — encode, decode and solve. - [Generators](https://encrypt.tools/random): secure password and API key generators. The complete, canonical list of tool pages is published at https://encrypt.tools/sitemap.xml ## Key facts - Every tool on encrypt.tools runs entirely client-side in the browser using the Web Crypto API and audited open-source libraries. - No data entered into any tool is uploaded, logged, or transmitted to a server. - The site requires no account, no sign-up, and shows no ads. - Scope: educational and utility cryptography — verify independently before protecting anything that matters.