Proxy Checker v1 is a lightweight yet powerful desktop utility for testing, validating, and managing proxy lists on Windows. Built with a clean dark-themed interface, it supports all major proxy protocols - SOCKS4, SOCKS5, and HTTP - with an intelligent auto-detection mode that automatically identifies the correct protocol for each proxy without any manual configuration. Simply paste your proxy list or load a .txt file, set your preferred timeout and thread count, and let the tool do the rest. With multi-threaded checking (up to 500 concurrent threads), even large proxy lists are processed in seconds. Each result is enriched with real-time GeoIP lookup, displaying the country name and flag emoji for every tested proxy. Results are color-coded by status - LIVE, DEAD, TIMEOUT, ERROR - and can be filtered, sorted by any column, and exported in multiple formats: a single combined .txt file, separate files organized by protocol, or directly copied to clipboard for immediate use. Key features: Auto-detect mode: probes SOCKS5 → SOCKS4 → HTTP automatically Supports authenticated proxies (user:pass@host:port) Country flag + GeoIP for every result Export all LIVE proxies or split by protocol into separate files Clipboard copy with one click Adjustable threads (1–500) and timeout Fully portable - no installation required, dependencies auto-installed on first run Whether you're a developer testing network configurations, a researcher validating public proxy sources, or a power user managing anonymity tools, Proxy Checker v1 delivers fast and reliable results in a no-nonsense interface. Instructions is provided in files Virus Total links - https://www.virustotal.com/gui/file/0e25ba951bfa566d3958e169159d749f5f46e5c9769926e3523db0bfda537d82