FTP Checker

FTP Checker is a domain-focused validation tool for IT operations, developers, and sysadmins who need to confirm that an FTP/FTPS endpoint is reachable and usable. It validates core connection properties: host, port, protocol, and authentication. It can test both explicit and implicit TLS modes and supports active and passive data channels.
Conceptually, the tool performs a sequence of checks, logs the outcomes, and classifies errors into categories: DNS/host resolution, network reachability, authentication failures, TLS negotiation, and data channel setup. It does not transfer files unless the user explicitly enables a test data action in extended mode.
Who benefits: system administrators, devops engineers, and developers integrating FTP into CI pipelines, managed file transfers, or periodic health checks. Unique value: structured error taxonomy, detailed capability detection (TLS modes, port ranges, cipher compatibility), and fast feedback in a lightweight web form.
Core features and use cases include remote host validation, TLS mode detection, login capability tests, directory listing capability checks, optional test data transfer, session logging for audits, and exportable results for CI. Use cases: pre-deployment verification, incident triage, and compliance checks.