Tool collection currently includes the following functions* http cloud disk server Use your mobile phone as a cloud disk server to provide permission control, upload and download files, and play videos in the cloud disk online* qrcode barcode creation recognition* ssh key and user management* ssh local port mapping* sftp client* tcp data forwarding Create a data forwarding channel between ws wss tcp tls-tcp* tcp server/client Create a tcp server/client with ws wss tcp tls-tcp protocol to test tcp communication, support sending and receiving custom data* Conversion between encoding tools utf8 hex binary base64* Numerical conversion Hexadecimal Decimal Binary Numerical conversion