Developer Tools
Find clear answers to common questions about AES Encrypt, including usage, output, and common issues.
Use this AES Encrypt tool to encrypt plain text with AES and return Base64 ciphertext. It is useful for demos, browser-side encryption tests, reversible development workflows, and understanding how passphrase-based AES transforms readable input into encrypted output.
AES Encrypt is built for development, debugging, formatting, and quick technical checks directly in the browser.
It encrypts plain text with AES and returns Base64 ciphertext.
Put the passphrase on the first line and the plaintext below it.
It returns Base64 ciphertext.
Yes, with the same passphrase using AES Decrypt.
The reverse tool is AES Decrypt.
AES Encrypt is built for development, debugging, formatting, and quick technical checks directly in the browser.
Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.
Fix: Put the passphrase on the first line and the plaintext below it.
Fix: You must use the exact same passphrase to decrypt the ciphertext.
Fix: Always put the passphrase first and the plaintext below it.
Fix: This tool returns Base64 ciphertext for easier copy and reuse.
Fix: This page is a simple passphrase-based AES tool, not an advanced crypto console.
If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.
Open the main AES Encrypt page to test your own input and generate a live result.