Encryption workbench
Encrypt plain text, inspect encrypted payloads, or decrypt saved values with a local browser workbench that keeps the algorithm choice and security tradeoffs visible.
Recommended path
Use AES-256-GCM for real protection. Keep DES, 3DES, and RC4 for legacy compatibility checks or educational comparison rather than new secure workflows.
This secret stays in your browser. For AES-256, it is used with PBKDF2 to derive the final key material.
Switch between protecting readable text and recovering a previously encrypted payload.
Example input
Load a sample secret block to test the flow or clear everything before pasting your own values.
Enter the readable text, secret, or note you want to encrypt.
The encrypted Base64 payload appears here after a successful run.
How to Use This Encryption Tool
Treat this as a quick local workbench: choose the cipher, set your passphrase, run encrypt or decrypt, and copy the result directly into your app, payload, or test workflow.
Choose the algorithm that fits the job
Use AES-256-GCM for real protection. Keep DES, 3DES, and RC4 only for compatibility checks or legacy learning.
Enter a strong passphrase
Use a passphrase you can reproduce exactly. For AES-256, the tool derives a key with PBKDF2 before encryption.
Pick encrypt or decrypt
Encrypt plain text into a transport-safe payload, or decrypt a payload back into readable text with the same passphrase.
Run it locally and copy the result
Everything happens in your browser, so you can inspect, encrypt, decrypt, and copy values without sending them to a server.
When This Tool Is Most Useful
This tool is most useful when you need a fast local way to protect sensitive text, inspect encrypted payloads, or compare algorithm behavior during development and support work.
Local secret handling
Encrypt environment values, internal notes, or temporary secrets before dropping them into local configs or shared developer workflows.
Fixtures and test payloads
Create encrypted example payloads for demos, QA fixtures, or compatibility tests without exposing plain text values.
Support and debugging
Verify whether a payload decrypts correctly, inspect a broken encrypted string, or confirm that two systems use the same format.
Legacy algorithm comparison
Compare modern AES-256 with older ciphers like DES, 3DES, and RC4 when you need to understand or reproduce older behavior.
FAQs
Which algorithm should I use here?
Use AES-256-GCM unless you specifically need to inspect or reproduce legacy behavior. It is the safest option on this page and includes authenticated encryption.Does the tool send my text anywhere?
No. Encryption and decryption happen locally in your browser, so your input and passphrase are not sent to a remote server.Why are DES and RC4 still included?
They are useful for legacy compatibility checks and educational comparison, but they are not good choices for new secure workflows.What happens if I lose the passphrase?
You will not be able to recover the original text. This tool does not store keys or provide any recovery mechanism.