This is one of the best AES Encryption and Decryption tools because, we have provided the tool with almost all AES modes, padding and Key-Size like

AES - GCM Encryption/Decryption for messages and files
AES - CBC Encryption/Decryption for messages and files
AES - ECB Encryption/Decryption for messages and files
AES - CFB Encryption/Decryption for messages and files
AES - CTR Encryption/Decryption for messages and files
AES - OFB Encryption/Decryption for messages and files
DES Encryption/Decryption for messages and files
3DES Encryption/Decryption for messages and files
Rabbit Encryption/Decryption for messages and files
RC4 Encryption/Decryption for messages and files
RC4Drop Encryption/Decryption for messages and files

Padding:
PKCS7
ISO97971
Zero Padding
No Padding

Bit
128
192
256
512

and moreover other tools like

URL Encoding
URL Decoding

Base64 Encode
Base64 Decode

Hashing
MD5
Sha-1
Sha 256
Sha 512
Sha 224
Sha 384
Sha-3
RIPEMD 160

Random Password Generator
Random Number Generator
Random Color Generator

Protect zip, pdf, excel, word,... file with password along with some more tools.