Is CryptoTools secure?

Yes, CryptoTools is 100% browser-based and all encryption operations are performed only on your computer. No data is sent to any server.

What encryption algorithms are supported?

We support 18+ encryption algorithms including AES, RSA, ECC, Kyber, Dilithium, and post-quantum cryptography (PQC).

Yes, all features of CryptoTools are completely free. You can use it immediately without registration or installation.

What file formats are supported?

You can encrypt all file formats including text, images, and documents. Files are processed directly in the browser without size limitations.

CryptoTools - Comprehensive Cryptographic Tools

Complete Security

What cryptographic tool do you need?

Fast and secure cryptographic tools that work directly in your browser. All operations are processed locally to completely protect your privacy.

What cryptographic tool do you need?

Fast and secure cryptographic tools that work directly in your browser. All operations are processed locally to completely protect your privacy.

Complete Security보안Real-time Processing실시간Multilingual Support다국어

Base64

Base64 Encoder/Decoder

Convert text to Base64 and vice versa

GenerateUploadVerify

Hash

Hash Functions

Generate hash values using various algorithms

SHA-256UploadVerify

Symmetric

Symmetric Encryption

Encrypt and decrypt data using symmetric algorithms

AES-256EncryptKey

Asymmetric

Asymmetric Encryption

Public-key cryptography operations

GenerateVerifyEncrypt

Encoding

URL and other encoding tools

URLHexBinary

Files

File streaming and encryption

StreamingProgressLarge Files

BGV Homomorphic Encryption

BGV homomorphic encryption supporting operations on encrypted data

Homomorphic OperationsEncryptEncrypted State Computation

ElGamal Encryption

ElGamal asymmetric encryption based on discrete logarithm problem

GenerateEncryptAsymmetric Keys

Paillier Encryption

Paillier probabilistic encryption with additive homomorphic properties

Probabilistic EncryptionEncryptAdditive Homomorphism

Post-Quantum Cryptography

Post-quantum cryptography resistant to quantum computer attacks (Kyber, Dilithium)

KyberDilithiumQuantum Resistance

Stream Cipher

High-speed stream ciphers including ChaCha20 and Salsa20

ChaCha20Salsa20Fast Encryption

DES Encryption

Data Encryption Standard (DES) - 56-bit legacy encryption algorithm

56-bitEncryptLegacy Support

Triple DES (3DES)

Triple Data Encryption Standard - Enhanced security with triple encryption

168-bitEncryptTriple Encryption

RC4 Stream Cipher

Rivest Cipher 4 - Variable key-length stream cipher

Stream CipherEncryptFast Encryption

Rabbit Stream Cipher

High-performance stream cipher optimized for software implementations

Stream CipherEncryptFast Encryption

SHA-3 Hash Function

Secure Hash Algorithm 3 - Latest member of the Secure Hash Algorithm family

SHA3-256SHA3-512Verify

BLAKE2 Hash Function

Fast cryptographic hash function, faster than MD5, SHA-1, SHA-2, and SHA-3

BLAKE2bBLAKE2sFast Hashing

ECIES Encryption

Elliptic Curve Integrated Encryption Scheme - Hybrid encryption combining ECC and symmetric encryption

Elliptic Curve CryptographyEncryptIntegrated Scheme

Complete Security

All cryptographic operations are processed locally in your browser. No data is transmitted to servers.

Real-time Processing

See results in real-time as you type. Fast and intuitive user experience.

Multilingual Support

Perfect support for Korean and English with optimized user interface for each language.