Key Facts
- Category
- Security & Validation
- Input Types
- select, textarea, file, text
- Output Type
- json
- Sample Coverage
- 4
- API Ready
- Yes
Overview
The AES Encryption Tool provides secure encryption and decryption for text and files using the industry-standard AES-256-GCM algorithm. By generating authenticated cryptographic bundles containing the salt, initialization vector (IV), authentication tag, and ciphertext, it ensures data confidentiality and integrity without relying on external storage.
When to Use
- •When you need to securely encrypt sensitive text snippets, passwords, or API keys before sharing them over insecure communication channels.
- •When you want to protect local files with authenticated AES-256-GCM encryption before uploading them to cloud storage providers.
- •When you need to decrypt an AES bundle JSON or encrypted file package using a pre-shared secret key.
How It Works
- •Select the input type (text or file) and choose whether to encrypt or decrypt.
- •Enter your plaintext or upload your file, then provide a strong secret key passphrase of at least 8 characters.
- •Choose your output encoding (Base64 or Hex) and run the tool to generate a secure JSON bundle or download the encrypted package.
Use Cases
Encrypting database credentials or configuration files before committing them to public version control repositories.
Sharing confidential text messages or notes securely via email or chat applications using a pre-shared passphrase.
Securing personal documents, PDFs, or images locally before storing them on public cloud drives.
Examples
1. Encrypting API Credentials for Secure Sharing
DevOps Engineer- Background
- A DevOps engineer needs to send a database connection string containing sensitive passwords to a remote developer over Slack.
- Problem
- Sending raw credentials over chat platforms risks exposure if the channel is compromised.
- How to Use
- Set the input type to 'Text' and operation to 'Encrypt'. Paste the connection string into the text input, enter a strong passphrase, select 'Base64' encoding, and click encrypt.
- Example Config
-
Input Type: Text Operation: Encrypt Secret Key: SuperSecretPass123! Output Encoding: Base64 - Outcome
- The tool generates a secure JSON bundle containing the ciphertext, IV, and auth tag, which can be safely shared and decrypted by the developer.
2. Decrypting a Received Text Bundle
Software Developer- Background
- A developer received a JSON bundle containing encrypted configuration parameters from a teammate.
- Problem
- The developer needs to recover the original plaintext configuration parameters using the pre-shared key.
- How to Use
- Set the input type to 'Text' and operation to 'Decrypt'. Paste the JSON bundle into the text input, enter the pre-shared secret key, and run the decryption.
- Example Config
-
Input Type: Text Operation: Decrypt Text Input: {"algorithm":"aes-256-gcm","encoding":"base64","salt":"c2FsdC1mb3ItYWVzLXRvb2w=","iv":"AQIDBAUGBwgJCgsM","authTag":"1VBqj1TTlms/dNQoH4WMGA==","ciphertext":"h4VrXvk="} Secret Key: test-key-123 - Outcome
- The tool successfully decrypts the bundle and outputs the original plaintext message: 'hello'.
Try with Samples
text, fileCryptography and Encryption Samples
Comprehensive cryptography examples including symmetric encryption, asymmetric encryption, hash functions, digital signatures, and key exchange protocols
title token encryption
Duplicate Line Samples
Sample files with various types of duplicate lines for testing duplicate removal tools
matched family text
Chinese-English Mixed Text Samples
Sample text files with mixed Chinese and English content for testing automatic spacing tools
matched family text
Whitespace Normalization Samples
Sample text files with various whitespace issues for testing normalization tools
matched family text
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FAQ
What encryption algorithm does this tool use?
It uses AES-256-GCM, which provides both data confidentiality and authenticated integrity checks.
What is included in the output text bundle?
The output JSON bundle contains the algorithm name, output encoding, salt, initialization vector (IV), authentication tag, and ciphertext.
Can I decrypt files that were encrypted using this tool?
Yes, you can decrypt them by selecting the decrypt operation, uploading the encrypted package, and entering the correct secret key.
What is the maximum file size supported?
The tool supports file uploads up to 20 MB for encryption and decryption.
Is my secret key stored on your servers?
No, all encryption and decryption operations are performed locally in your browser, and your secret key is never stored or transmitted.