curl / curl

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

winscp / winscp

WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly.

giampaolo / pyftpdlib

Extremely fast and scalable Python FTP server library

robinrodricks / FluentFTP

An FTP and FTPS client for .NET & .NET Standard, optimized for speed. Provides extensive FTP commands, File uploads/downloads, SSL/TLS connections, Automatic directory listing parsing, File hashing/checksums, File permissions/CHMOD, FTP proxies, FXP support, UTF-8 support, Async/await support, Powershell support and more. Written entirely in C#.

fclairamb / ftpserver

Golang based autonomous FTP server with SFTP, S3, Dropbox, and Google Drive connectors.

patrickjuchli / basic-ftp

FTP client for Node.js, supports FTPS over TLS, passive mode over IPv6, async/await, and Typescript.

proftpd / proftpd

ProFTPD source code

whyn0tq / Nexa

A fast SFTP, FTP and FTPS client for Windows. One tab per server, transfers that never drop.

AshVoiceStaple / FileZilla-Server-Full

FileZilla Server Full for Windows — listeners, user stores, and session logs ready after a short local setup.