This tool encrypts and decrypts any image instantly for free. It supports encryption of all image formats such as .png, .jpeg, .jpg, .gif, etc. This image can be encrypted with a user supplied secret key or without it, but it is always recommended to supply a custom secret key while encrypting the image for an utmost security.
Also, you can use this text encryption and decryption tool to encrypt any text instead of an image.
🔒 Encrypt Image Online
🔓 Decrypt Image Online
How to Use This Tool
.enc file or copy the Base64 output to store or share the
encrypted image.
.enc
file in the Decrypt panel, enter the same passkey used during encryption,
and download the restored image.
Why AES-256-GCM?
AES (Advanced Encryption Standard) is a symmetric key encryption algorithm widely trusted for securing sensitive data. AES-256-GCM combines:
This combination makes AES-256-GCM ideal for encrypting images, where both secrecy and authenticity are critical.
Supports .png, .jpg, .jpeg, .gif, .webp and all common raster formats up to 20 MB.
Military-grade authenticated encryption — confidentiality and tamper detection in one pass.
Free to use, no account or login needed
How Our Online Tool Works
Our tool provides a simple interface for encrypting and decrypting images:
.enc
file. This file contains everything needed to decrypt, except the passkey.
The secret key is not stored anywhere on our platform. If you lose it, the encrypted file cannot be recovered. Store your passphrase in a password manager or secure vault before encrypting important images.
AES-256-GCM for Image Encryption
Images often contain sensitive data, whether personal photos or business documents. Simple encryption methods like AES-CBC or DES may protect confidentiality but fail to detect tampering. AES-256-GCM provides:
AES-256 is computationally infeasible to crack with brute force using any modern hardware.
GCM authentication tag ensures corrupted or tampered
.enc files are rejected on decryption.
GCM requires no block padding, preventing padding oracle and PKCS#7 side-channel exploits.
Unlike ECB mode, GCM produces output that reveals no visual pattern from the original image.
Uses the native Web Crypto API for hardware-accelerated encryption with no software overhead.
Upload, click Encrypt, download — professional-grade security with a one-click workflow.
With our online tool, even non-technical users can safely encrypt and decrypt images with professional-grade cryptography.
Is PGP encryption suitable for encrypting images?
PGP encryption can technically be used to encrypt image files because it works on raw file data, not just text. This means you can securely encrypt photos, screenshots, or any image file using a PGP public key or passphrase. However, while PGP provides strong security, it is not very user-friendly for most people and requires key management, command-line tools, or special software to decrypt the image later. For simple use cases like protecting personal photos or sharing images securely online, password-based encryption (such as AES) is usually more convenient and practical, whereas PGP is better suited for advanced users who already use PGP for secure communication and file exchange.
Frequently Asked Questions
.enc file) and the same key-derivation method (PBKDF2 + SHA-256).
Generic AES-256-GCM ciphertext from other tools is not directly compatible
because
the bundled metadata layout may differ.
.enc file alongside the ciphertext. Anyone who obtains the
.enc file can decrypt it. With a passkey, the file remains secure
even
if intercepted — only someone who knows the passphrase can decrypt it.
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