Encrypt and decrypt text with AES-GCM, PBKDF2 passphrase hardening, raw AES keys, AAD, and optional gzip compression. Export as JSON envelope or compact token.
Last updated: March 2, 2026
Encrypt and decrypt text with AES-GCM, PBKDF2 passphrase hardening, raw AES keys, AAD, and optional gzip compression. Export as JSON envelope or compact token. This tool runs in-browser for fast results without account…
Yes. The tool is fully free, browser-based, and requires no signup or account.
No. Encryption and decryption run locally in your browser using Web Crypto APIs. Your inputs are not uploaded by this tool.
Yes. Save the generated envelope JSON or compact token and use the same passphrase or key settings to decrypt later.
It uses authenticated encryption (AES-GCM), optional PBKDF2 key hardening, optional AAD binding, and supports exporting structured metadata for repeatable decryption.
Reviewed by the ConvertCrunch Editorial Team. This page is updated as rates, standards, and official guidance change. See our editorial policy for review criteria and correction process.
Last reviewed: March 2, 2026
Calculations run in-browser and are reviewed against official guidance in the source list above. Inputs are processed locally on your device and are not stored in an account.
Recent Product Updates
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CyberChef-style workflow with AES-GCM, tag-length control, PBKDF2 hardening, key utilities, and envelope/token export.
Encrypt UTF-8, hex, or base64 payloads. You can paste text or load from a file.
Generate or verify message authentication signatures with HMAC-SHA256/SHA512.
Build step-by-step crypto workflows with classic ciphers (Morse, Caesar, Vigenere, Affine, Rail Fence, Columnar, ROT13, Atbash), hashing, HMAC, PBKDF2, AES modes, RSA-OAEP, ECDSA, encoding transforms, XOR, and compression.
Key store aliases in memory: RSA 0 | ECDSA 0
Algorithm palette (drag blocks into the flow)
Hash: SHA-256
Security notes
This tool runs fully in-browser. Use strong passphrases, store keys separately from ciphertext, and prefer per-message random IVs and salts. AES-GCM provides confidentiality and integrity when inputs match exactly.