| <!-- Copyright (C) Daniel Stenberg, <[email protected]>, et al. --> | |
| <!-- SPDX-License-Identifier: curl --> | |
| # PROTOCOLS | |
| curl supports numerous protocols, or put in URL terms: schemes. Your | |
| particular build may not support them all. | |
| ## DICT | |
| Lets you lookup words using online dictionaries. | |
| ## FILE | |
| Read or write local files. curl does not support accessing file:// URL | |
| remotely, but when running on Microsoft Windows using the native UNC approach | |
| works. | |
| ## FTP(S) | |
| curl supports the File Transfer Protocol with a lot of tweaks and levers. With | |
| or without using TLS. | |
| ## GOPHER(S) | |
| Retrieve files. | |
| ## HTTP(S) | |
| curl supports HTTP with numerous options and variations. It can speak HTTP | |
| version 0.9, 1.0, 1.1, 2 and 3 depending on build options and the correct | |
| command line options. | |
| ## IMAP(S) | |
| Using the mail reading protocol, curl can download emails for you. With or | |
| without using TLS. | |
| ## LDAP(S) | |
| curl can do directory lookups for you, with or without TLS. | |
| ## MQTT | |
| curl supports MQTT version 3. Downloading over MQTT equals subscribe to a | |
| topic while uploading/posting equals publish on a topic. MQTT over TLS is not | |
| supported (yet). | |
| ## POP3(S) | |
| Downloading from a pop3 server means getting a mail. With or without using | |
| TLS. | |
| ## RTMP(S) | |
| The **Realtime Messaging Protocol** is primarily used to serve streaming media | |
| and curl can download it. | |
| ## RTSP | |
| curl supports RTSP 1.0 downloads. | |
| ## SCP | |
| curl supports SSH version 2 scp transfers. | |
| ## SFTP | |
| curl supports SFTP (draft 5) done over SSH version 2. | |
| ## SMB(S) | |
| curl supports SMB version 1 for upload and download. | |
| ## SMTP(S) | |
| Uploading contents to an SMTP server means sending an email. With or without | |
| TLS. | |
| ## TELNET | |
| Fetching a telnet URL starts an interactive session where it sends what it | |
| reads on stdin and outputs what the server sends it. | |
| ## TFTP | |
| curl can do TFTP downloads and uploads. | |
| ## WS(S) | |
| WebSocket done over HTTP/1. WSS implies that it works over HTTPS. | |