Security & Privacy Tools • Free Online Tool

AES-256 Encryption/Decryption

Securely encrypt and decrypt text using the industry-standard AES-256 algorithm.

Free to Use No Sign-Up Browser-Based
Online Tool

AES-256 Encryption/Decryption

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                                    Privacy Priority: This tool uses client-side AES-256. Your data and keys never leave your browser.
                                

                            

                        

                    

                

            

        

    




                        


    
            

            

                The AES-256 Encryption/Decryption tool provides a secure way to protect your sensitive information. AES (Advanced Encryption Standard) with a 256-bit key is the gold standard for digital security, used by governments and financial institutions worldwide. This tool performs all operations locally in your browser, ensuring that your raw data and secret keys never reach our servers. It supports multiple operation modes (CBC, ECB) and provides instant results for both encryption and decryption workflows.
            

        

    
    



    

        


            

                

                    
                        
                    
                


                

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