FTP, SFTP & WebDAV Tools
A collection of 16 free, browser-based tools for testing and debugging FTP, SFTP, FTPS, and WebDAV connections. No installation needed.
Setting up an FTP or SFTP server usually means going back and forth between terminal commands, firewall rules, and client settings until things work. These tools let you test each piece individually from your browser — check if a port is open, verify TLS certificates, confirm which auth methods a server supports, or look up what a response code actually means.
They’re organized into three groups: connection testers for verifying server reachability across FTP, SFTP, FTPS, and WebDAV; security & inspection tools for checking certificates, host keys, TLS versions, and authentication methods; and utilities for port checking, FTP command reference, URL parsing, and passive mode diagnostics.
Connection Testers
FTP Connection Tester
Verify FTP server reachability, test credentials, and diagnose connection issues instantly.
SFTP Connection Tester
Test SFTP server connectivity with password or key-based authentication and view detailed results.
FTPS Connection Tester
Check FTPS (FTP over TLS) server connectivity and validate the TLS handshake and certificate chain.
WebDAV Connection Tester
Test a WebDAV server with a real PROPFIND request. Verify credentials, check DAV compliance level, and diagnose errors.
Security & Inspection
FTPS Certificate Checker
Inspect the TLS certificate of an FTPS server — expiry date, issuer, subject, and chain validity.
SFTP Host Key Fingerprint Viewer
Retrieve and display the SSH host key fingerprint of an SFTP server for identity verification.
FTP Anonymous Login Checker
Check whether an FTP server accepts anonymous logins — a common misconfiguration and security risk.
TLS Protocol Scanner
Detect which TLS versions (1.0, 1.1, 1.2, 1.3) and cipher suites an FTP/FTPS server supports.
SFTP Auth Method Checker
Discover which authentication methods an SFTP server accepts — password, public key, or keyboard-interactive.
WebDAV Certificate Checker
Inspect the TLS certificate of a WebDAV/HTTPS server — expiry, SANs, key size. Works with ownCloud and Nextcloud.
Utilities
FTP Port Checker
Check whether an FTP port (21, 22, 990, or custom) is open and accepting connections on a remote host.
FTP Response Code Lookup
Look up any FTP status code and get a plain-English explanation of what it means and how to resolve it.
FTP Server Banner Grabber
Retrieve the raw server banner sent on connection to identify the FTP server software and version.
FTP URL Parser / Builder
Parse an FTP URL into its components or build a valid FTP/SFTP/FTPS URL from host, port, path, and credentials.
FTP Command Reference
Browse all standard FTP commands with syntax, descriptions, and examples — searchable and filterable by category.
FTP Passive Port Range Checker
Scan a range of passive-mode ports on your FTP server to verify they are open and reachable through firewalls.
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