Free online RC4 encryption and decryption tool supporting multiple formats including text, Base64, and hexadecimal. RC4 is a stream cipher algorithm with fast encryption/decryption speed, suitable for data encryption scenarios. All operations are performed locally to protect your data security.
Free online RC4 encryption and decryption tool supporting multiple formats including text, Base64, and hexadecimal. RC4 is a stream cipher algorithm with fast encryption/decryption speed, suitable for data encryption scenarios. All operations are performed locally to protect your data security.
Free online RC4 encryption and decryption tool supporting multiple formats including text, Base64, and hexadecimal. RC4 is a stream cipher algorithm with fast encryption/decryption speed, suitable for data encryption scenarios. All operations are performed locally to protect your data security.
Open the tool page — no download or installation required Select Encrypt or Decrypt mode, enter your content, and provide a secret key (or generate one automatically) Click the Encrypt or Decrypt button to process, then click "Copy" to grab the result
This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device
Yes, RC4 Stream Cipher is completely free. No download or installation required — it runs right in your browser.