Hat.sh - Simple, fast, secure client-side file encryption
EncryptandDecryptfilessecurelyinyourbrowser.
CyberChef
TheCyberSwissArmyKnife-awebappforencryption,encoding,compressionanddataanalysis
Serpent Encryption – Easily encrypt or decrypt strings or files
OnlineinterfaceforSerpentencryptionalgorithm,anunpatentedalgorithmintendedtobeusedasAdvancedEncryptionStandard,whichwasnotselectedforthispurpose,however.