Proxifier Features and Specifications

System and Hardware Requirements
  • Windows (x86, x64, ARM) XP, Vista, 7, 8, 10, 11.
  • Windows Server (x86, x64, ARM) 2003, 2008, 2012, 2016, 2019, 2022.
  • macOS 10.4-10.15, 11, 12, 13.
  • 10 MB of free disk space.
  • TCP/IP network.
  • Installation pack in a single exe-file (4 MB approx.)
  • Installation requires administrator rights. After the installation, Proxifier can be run by any user.
  • Silent (unattended) mode supported.
  • All Proxifier binaries are signed with EV digital certificate issued by a trusted root CA.
  • Portable Edition does not need installation and can be run from a removable media.
  • Custom installation packs (MSI, ZIP, XCOPY deployment, etc.) can be provided on demand.
  • Personal settings are preserved during the update.
  • Auto check for updates on start.
  • Proxifier can process all outgoing TCP connections.
  • Full IPv6 support.
  • Tunnel IPv4 connections through IPv6 proxy and vice versa.
Proxy Servers
  • SOCKS 4 and SOCKS 4A (hostnames support) with User ID authentication.
  • SOCKS 5 with Username/Password authentication.
  • HTTPS with Basic, Kerberos and NTLM authentication (explicit and transparent modes).
  • HTTP with Basic authentication (HTTP connections only).
  • Tested with all major proxy server implementations including Microsoft ISA, Blue Coat, WinGate, Dante, Squid, Apache and others.
  • Failover (redundancy list) allows assigning any number of back up proxies. Timeout is configurable.
  • Proxy failure is transparent for the client application if redundancy is enabled.
  • Each proxy can be assigned a short name (label) that can be conveniently used in other parts of Proxifier.
Proxy Chains
  • Arbitrary length.
  • Different proxy protocols can be used within the same chain.
  • Proxies in the chain can be enabled/disabled.
  • Convenient UI that allows chain creation and reordering with drag-and-drop.
  • Load Balancing and Redundancy chains.
Client Applications
  • 32- and 64-bit applications support.
  • Windows Services and applications run by other users (configurable).
  • Proxification is transparent for the client applications.
  • Best-in-class compatibility with the third party software. Automated conflict-resolution logic.
  • System DNS and DNS over proxy supported.
  • Hybrid mode.
  • Automatic DNS mode detection.
  • DNS over Proxy is supported for all proxy protocols.
  • DNS exclusion list with wildcards (e.g. *
Flexible Configuration
  • Proxification rules can be based on application names, IP addresses, hostnames and port numbers.
  • Each rule can be assigned to proxy, chain, block or direct connection.
  • Rules are processed from top to bottom and can be reordered.
  • Wildcards and masks are supported for applications, IP addresses and hostnames (e.g. *app.exe; 192.168.*.*; *
  • Ranges are supported for IP addresses and port numbers (e.g.–; 80–1234).
  • Live syntax check with highlighting.
  • Individual rules can be enabled/disabled.
  • Proxifier context menu (right-click on arbitrary .exe file) allows dynamic proxy selection for the application within a session.
Configuration Deployment and Management
  • Configuration is stored in profile files (*.ppx).
  • Human readable XML format.
  • Unlimited length.
  • Fast profile switching from a list.
  • Profiles can be managed as files. Import and export is supported.
  • Silent profile load with “Proxifier.exe profile-name.ppx silent-load” command.
  • Profiles proxy passwords encryption with the current user login credentials or master password.
  • Basic and AES 256-bit encryption supported.
  • System-wide profile that is forcibly used for all users.
  • User can enter login details interactively if login/password is blank in the profile.
  • Proxifier can interactively ask login/password if authentication on proxy fails.
  • Automatic profile update from a remote Web server. User’s proxy login details get preserved.
  • An option to force profile passwords encryption via system registry.
  • Fully compatible Proxifier profiles of Windows and Mac versions.
User Interface and Interaction
  • Live information about connections including application name, target host, time/status, rule/proxy, received/sent bytes and more.
  • Live traffic (bandwidth) graph.
  • Live global statistics.
  • Live output with 4 levels of verbosity.
  • Color indication.
  • System tray icon with traffic view.
  • Adjustable UI that is persistent during restart (windows sizes, panes layout, etc).
  • High-DPI modes supported.
Logs and Troubleshooting
  • Detailed error messages.
  • Log-file.
  • Verbose mode for screen and log-file with a detailed output.
  • Traffic dumps.
  • Automatic self-check testing on each start.
  • Automatic conflict detection logic.
  • Custom crash reporter.
License Control
  • Plain-text license keys (XXXXX-XXXXX-XXXXX-XXXXX-XXXXX).
  • Multiple licenses can be assigned to a single key.
  • Automatic license deployment.
  • Key can be directly written to the system registry before or after the installation.
  • 31-day free trial with no limitations.
Support and Documentation
  • Detailed online documentation with images and examples.
  • Fast and professional support over email.
  • English only.
Development and Copyrights
  • All copyrights to Proxifier are exclusively owned by VentoByte.
  • Proxifier does not contain or link any open source, freeware or third-party code.
  • Windows version is built with Microsoft Visual C++.
  • Mac version is built with Apple Xcode.
  • Windows install package is built with Inno Setup.