Showing 136 open source projects for "free firewall jar"

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  • 1
    H2 Database

    H2 Database

    H2 is an embeddable RDBMS written in Java

    Welcome to H2, the Java SQL database. Very fast, open source, JDBC API. Embedded and server modes; in-memory databases. Browser-based Console application. Small footprint: around 2.5 MB jar file size. Browser-based Console application. Encrypted databases. Fulltext search. Pure Java with small footprint: around 2.5 MB jar file size. ODBC driver. This database can be used in embedded mode, or in server mode. ou may get a security warning from the firewall. If you don't want other computers in the network to access the database on your machine, you can let the firewall block these connections. ...
    Downloads: 26 This Week
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  • 2
    LuLu

    LuLu

    LuLu is the free open-source macOS firewall

    LuLu is a free, open-source firewall for macOS developed by Objective-See. It blocks unauthorized outgoing network connections, allowing users to monitor and control which applications can transmit data externally. Designed for privacy and security, LuLu provides real-time prompts, rule-based filtering, and an intuitive interface, making it a valuable tool for Mac users seeking visibility over their system’s network behavior.
    Downloads: 6 This Week
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  • 3
    Proton VPN Windows App

    Proton VPN Windows App

    Official ProtonVPN Windows app

    ...It includes a modern GUI built with .NET and WPF that lets users authenticate, choose VPN servers, and configure features like split tunneling or kill switch, while a background Windows service manages VPN connections using the OpenVPN protocol and handles networking tasks such as firewall and adapter configuration. The app integrates a custom TAP driver and a split tunnel callout driver to help route traffic securely and prevent leaks, and is structured so the GUI and service components work together to deliver a smooth user experience on Windows desktops and laptops. ProtonVPN’s Windows client supports both free and paid users with access to Proton’s global server network, encrypted tunnels, and privacy-first policies that block logging and respect user anonymity.
    Downloads: 287 This Week
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  • 4
    CrowdSec

    CrowdSec

    Firewall able to analyze visitor behavior & provide adapted response

    CrowdSec - an open-source massively multiplayer firewall able to analyze visitor behavior & provide an adapted response to all kinds of attacks. It also leverages the crowd power to generate a global IP reputation database to protect the user network. Crowdsec shouldn't, and didn't crash any production so far we know, but some features might be missing or undergo evolutions. IP Blocklists are limited to very-safe-to-ban IPs only (~5% of the global database so far, will grow soon). A modern...
    Downloads: 7 This Week
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  • 5
    Bytecode Viewer

    Bytecode Viewer

    A reverse engineering suite (decompiler, editor, debugger and more)

    ...It is 100% free and open sourced under GPL v3 CopyLeft.
    Downloads: 63 This Week
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  • 6
    Lombok

    Lombok

    New additions to the Java programming language

    Project Lombok is a java library that automatically plugs into your editor and build tools, spicing up your java. Never write another getter or equals method again, with one annotation your class has a fully featured builder, Automate your logging variables, and much more. Project Lombok is available as a single jar file on the project site. It includes the APIs for development as an installer for IDE integration. On most systems, simply double-clicking the jar file will launch the...
    Downloads: 4 This Week
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  • 7
    Portmaster

    Portmaster

    Block Mass Surveillance

    Portmaster is a free and open-source application firewall that does the heavy lifting for you. Restore privacy and take back control over all your computer's network activity. Discover everything that is happening on your computer. Expose every connection your applications make and detect evil ones. Finally, get the power to act accordingly. Protect your whole computer, not just your browser.
    Downloads: 37 This Week
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  • 8
    IPBan

    IPBan

    IPBan is a trusted, free security software to block hackers

    Since 2011, IPBan is the world's most trusted, free security software to block hackers and botnets. With both Windows and Linux support, IPBan has your dedicated or cloud server protected. Upgrade to IPBan Pro today and get a discount. Auto-ban ip addresses by detecting failed logins from event viewer and/or log files. On Linux, SSH is watched by default. On Windows, RDP, OpenSSH, VNC, MySQL, SQL Server, Exchange, SmarterMail, and MailEnable are watched. More applications can easily be added...
    Downloads: 34 This Week
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  • 9
    SoftEther VPN

    SoftEther VPN

    Cross-platform multi-protocol VPN software

    An open-source free cross-platform multi-protocol VPN program, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN sessions) from JavaScript, TypeScript, C# or other languages. SoftEther VPN ("SoftEther" means "Software Ethernet") is one of the world's most powerful...
    Downloads: 58 This Week
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  • 10
    shadowsocks-libev

    shadowsocks-libev

    Bug-fix-only libev port of shadowsocks

    Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your...
    Downloads: 5 This Week
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  • 11
    CloudPanel

    CloudPanel

    Server control panel to configure and manage a server

    CloudPanel CE is an open-source server control panel focused on hosting high-performance web applications with a clean, modern UI. It streamlines provisioning of sites and services—web servers, databases, PHP runtimes, and SSL—so teams can go from a fresh VM to a production-ready stack quickly. The panel emphasizes performance defaults and security best practices, offering features like one-click TLS, user isolation, and straightforward firewall controls. Developers can manage multiple...
    Downloads: 3 This Week
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  • 12
    Fail2Ban

    Fail2Ban

    Daemon to ban hosts that cause multiple authentication errors

    Fail2Ban scans log files and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time, although any arbitrary other action (e.g. sending an email) could also be configured. Out of the box Fail2Ban comes with filters for various services (apache, courier, ssh, etc). Fail2Ban is able to reduce the rate of incorrect authentications attempts...
    Downloads: 3 This Week
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  • 13
    Smoothwall
    Smoothwall is a best-of-breed Internet firewall/router, designed to run on commodity hardware and to provide an easy-to-use administration interface to those using it. Built using open source and Free software, it's distributed under the GNU Public License.
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    Downloads: 1,946 This Week
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  • 14

    Free VHDL Parser with Java, Python and T

    IEEE VHDL-93 LRM supported parser implemented in Java, APIs Python/Tcl

    ...There are APIs to extract the design information from the database, APIs to elaborate the design along with expression evaluation capabilities. This tool has been bundled as an executable JAR file along with an application which reads a RTL file(s), dumps the design units and the reverts those back. Please refer to the document for the details of the available APIs. You need Java JRE 1.6.x or above in order to use this utility. Feel free to contact the support team for any assistance.
    Downloads: 0 This Week
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  • 15
    CacheGuard Gateway

    CacheGuard Gateway

    Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.

    ...A fully custom network appliance operating system built from scratch over 20 years, now fully open source. One ISO includes: firewall, VPN, web antivirus, URL filtering, SSL inspection, WAF, reverse proxy, load balancer and QoS. Free for any number of users. Optional paid support available. Source code: https://github.com/cacheguard/CacheGuard-OS Website: https://www.cacheguard.com/
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    Downloads: 94 This Week
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  • 16
    tls SNI injector CloudFlare Free Server

    tls SNI injector CloudFlare Free Server

    Value Added Warp over SNI via SNI injection SSL/TLS Tunnel

    How It Works [Android Device] │ │ WireGuard UDP ▼ [SNI Tunnel Client] ← Wraps UDP in TLS/ssl + injects fake SNI │ │ Looks like: HTTPS → microsoft.com ✓ ▼ [ISP Firewall] ← Passes through — sees only valid HTTPS │ ▼ [VPS Server] ← Decrypts TLS, recovers WireGuard UDP │ ▼ [Cloudflare Warp] ← Receives native WireGuard traffic │ ▼ Internet The core trick is SNI injection: the...
    Downloads: 38 This Week
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  • 17
    OpenFW UTM Community
    OpenFW UTM Community is a "turn-key" , fork solutions Endian Firewall UTM Community, linux security distribution that makes your system a full featured security appliance with Unified Threat Management (UTM) functionalities. The software has been designed for the best usability: very easy to install, use and manage and still greatly flexible. The feature suite includes stateful packet inspection firewall, application-level proxy HTTP with antivirus support, content filtering of Web traffic and a "hassle free" VPN solution (based on both OpenVPN, IPsec and Wireguard)
    Downloads: 16 This Week
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  • 18
    tls SNI injector OpenVPN Free Server

    tls SNI injector OpenVPN Free Server

    Value Added OpenVPN over SNI via SNI injection SSL/TLS Tunnel

    How It Works [Android Device] │ │ OpenVPN TCP/UDP ▼ [SNI Tunnel Client] ← Wraps traffic in SSL + injects fake SNI │ │ Looks like: HTTPS → microsoft.com ✓ ▼ [ISP Firewall] ← Passes through — sees only valid HTTPS │ ▼ [VPS Server] ← Decrypts TLS, recovers OpenVPN traffic │ ▼ [OpenVPN Server] ← Receives native OpenVPN traffic │ ▼ Internet The core trick is SNI injection: the...
    Downloads: 1 This Week
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  • 19
    pj-ftp-server

    pj-ftp-server

    Pure Java FTP server. Free portable cross-platform multi-threaded.

    Pure Java FTP server. Free portable cross-platform. Run as root/admin ! 1) Fully multi-threaded. 2) Multi platform support. 3) Can run in GUI-mode: # java -jar pj-ftp-server.jar 4) Can run in CMD-mode (used cmd-mode-config.properties): # java -jar pj-ftp-server.jar cmd 5) IP-filter (access list) support. 6) Writable=true/false support 7) Support listening on different local interfaces 8) Speed limit support 9) Anonymous-mode support 10) Different TCP-ports support 11) Logging support 12) Support limit max concurrent logins 13) Support limit max concurrent logins per IP 14) Need JRE-1.8: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html Source = https://github.com/harp077/pj-ftp-server If you like this - put a star on https://github.com/harp077/pj-ftp-server/ for support project please.
    Downloads: 2 This Week
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  • 20
    MyPublicWiFi

    MyPublicWiFi

    Turn your computer into a WiFi Access Point or individual Hotspot.

    ...MyPublicWiFi allows you to record and track all visited url pages on your virtual WiFi-Hotspot and allows you to set up port forwarding. MyPublicWiFi is a smart all-in-one solution for secure and easily manageable WiFi hotspots – both private and public. Access can be provided free or for a fee.
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    Downloads: 152 This Week
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  • 21
    pj-tftp-server

    pj-tftp-server

    Pure Java TFTP server.

    Pure Java TFTP server. Free, portable, cross-platform. Fully multi-threaded. Implements RFC 1350. Run as root/admin in cmd-mode with cmd argument = path to folder, for example: java -jar pj-tftp-server.jar /tmp .Need JRE-1.8. Source - https://github.com/harp077/pj-tftp-server If you like this - put a star on https://github.com/harp077/pj-tftp-server/ for support project please.
    Downloads: 5 This Week
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  • 22
    UUSEC WAF

    UUSEC WAF

    AI and semantic technology Web Application Firewall

    UUSEC WAF Web Application Firewall is an industrial grade free, high-performance, and highly scalable web application and API security protection product that supports AI and semantic engines. It is a comprehensive website protection product launched by UUSEC Technology, which first realizes the three-layer defense function of traffic layer, system layer, and runtime layer.
    Downloads: 3 This Week
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  • 23
    Steal a Brainrot Script

    Steal a Brainrot Script

    Steal a Brainrot SCRIPT NO KEY - Anti Hit, ESP, Anti-Kick

    ... ⚙️ System Requirements: Platform: Roblox (PC only) Game: Steal a Brainrot Executors: https://sourceforge.net/projects/bunni-roblox-executor/ No antivirus or firewall blocking the executor Internet connection recommended for updates Download the Steal a Brainrot Hack for Free (2025 Edition) Enjoy smooth gameplay, quick setup, and powerful features with this no-key Roblox script.
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    Downloads: 166 This Week
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  • 24

    Digital Community

    custom build of Debian designed to be a local web server (no internet)

    Digital Community is a custom build of Debian designed to be a local web server (no internet). The goal is to deliver content to users on a local network. Keep it private, or connect a WiFi booster and share it with everyone in range. NOTICE (for my followers) : This Debian build is not for those wanting strict libre software. It includes both non-free firmware, and systemd. While it's free for anyone to use, It was designed for a specific purpose and for specific clientele.
    Downloads: 0 This Week
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  • 25
     Transfer of Death
    ...It has trouble connecting out of it's own subnet. Zerotier or Tailscale is a necessity for this app, if you want to connect to PC's outside of your subnet. They're free, take 5 minutes to install. www.zerotier.com www.tailscale.com *Note: Beware of other VPN's and firewall rules.
    Downloads: 0 This Week
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