Open Source NetLimiter AlternativesTop Firewalls & Network Monitors like NetLimiter

The best open source alternative to NetLimiter is Portmaster. If that doesn't suit you, our users have ranked more than 25 alternatives to NetLimiter and 12 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to NetLimiter are simplewall, Fort Firewall, Minimal Firewall and Gufw.

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NetLimiter alternatives are mainly Firewalls, but if you're looking for Network Monitors or Privacy Tools you can filter on that. Other popular filters include Open Source, Free, Mac, Linux + Open Source, Windows + Free and Windows. These are just examples - use the filter bar below to find more specific alternatives to NetLimiter.
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Alternatives list

  1. Portmaster icon

    Portmaster

     167 likes
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    Portmaster is a free and open-source privacy suite that puts you back in charge of your computer.

    35 Portmaster alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    Dashboard PMv1.4
     
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    4
    Comments about Portmaster as an Alternative to NetLimiter
    Guest
    Negative
    8

    NetLimiter's primary usage is to limit speed. Portmaster doesn't limit speed. So Portmaster is irrelevant.

    Review by a new / low-activity user.
    Guest
    Negative
    8

    Portmaster does not provide a way to set bandwidth limits, so it is not similar enough to NetLimiter to be an alternative.

    Review by a new / low-activity user.
    Martin Ligabue
    Positive
    -1

    more options, more advanced, simpler, and open source

    Show more comments
    3 of 4 comments
    NetLimiter Icon
    Portmaster icon

    • This alternative is disputed. Portmaster is a legitimate NetLimiter alternative, but it might have issues that some users think are important.

    • Portmaster is the most popular Windows & Linux alternative to NetLimiter.

    • Portmaster is the most popular Open Source & free alternative to NetLimiter.

    • Portmaster is Freemium and Open SourceNetLimiter is Paid and Proprietary
    • Portmaster is Privacy focused and LightweightNetLimiter is not according to our users
  2. simplewall icon

    simplewall

     200 likes
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    Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.

    37 simplewall alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    Main Window
     
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    6
    12
    Comments about simplewall as an Alternative to NetLimiter
    Top Positive Comment
    Guest
    1

    Please add dns level blocking, i want to be able to block some dns request and allow others, the rest is fine.

    Review by a new / low-activity user.
    Top Negative Comment
    Guest
    22

    The tool is fine, easy to setup, but it can only block traffic, not limit.

    Review by a new / low-activity user.
    frenchiveruti
    Negative
    2

    Doesn't show network usage, like how many KB is an app using.

    Show more comments
    3 of 6 comments
    NetLimiter Icon
    simplewall icon

    • This alternative is disputed. simplewall is a legitimate NetLimiter alternative, but it might have issues that some users think are important.

    • simplewall is Free and Open SourceNetLimiter is Paid and Proprietary
    • simplewall is Lightweight and Privacy focusedNetLimiter is not according to our users
  5. Minimal Firewall icon

    Minimal Firewall

     9 likes
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    Minimal Firewall is a portable Windows firewall frontend that alerts users to internet connections without requiring custom kernel modifications or disabling core isolation, striking a balance between TinyWall's security and SimpleWall's functionality.

    35 Minimal Firewall alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    Minimal Firewall screenshot 1
     
  6. Gufw icon

    Gufw

     51 likes
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    Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports port(s), and many others! Gufw is powered by Uncomplicated Firewall (ufw).

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • Python
    Gufw screenshot 1
    Main Gufw window where you set which applications to allow or block.
    Adding the new rules
     
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    1
    6
    Comments about Gufw as an Alternative to NetLimiter
    Guest
    Positive
    -4

    On Linux, it uses netfilter to rate-limit ports and applications

    Review by a new / low-activity user.
    NetLimiter Icon
    Gufw icon

    • This alternative is disputed. Gufw is a legitimate NetLimiter alternative, but it might have issues that some users think are important.

    • Gufw is Free and Open SourceNetLimiter is Paid and Proprietary
    • Gufw is LightweightNetLimiter is not according to our users
  7. NethSecurity icon

    NethSecurity

     1 like
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    All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    NethSecurity screenshot 1
     
  9. vnStat Client icon

    vnStat Client

     Like
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    GUI Client for vnStat Network Monitor for Linux or GNU/Linux - GitHub - Hulxv/vnstat-client: GUI Client for vnStat Network Monitor for Linux or GNU/Linux

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    Choose custom interval modal
     
  10. Bouncer App icon

    Bouncer App

     1 like
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    Bouncer is an application to help you choose the correct firewall zone for wireless connections. When you connect to a new network, Bouncer will open a window prompting you for what kind of network (eg home, public, work) it is.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • Flathub
    • Flatpak
    Bouncer App screenshot 1
     
  11. TrafficToll icon

    TrafficToll

     1 like
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    TrafficToll allows you to limit download and upload bandwidth globally (per interface) and per process, even during the process' runtime.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    TrafficToll screenshot 1
     

  12. trickle - Userland Bandwidth Shaper

     3 likes
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    trickle is a portable lightweight userspace bandwidth shaper. It can run in collaborative mode (together with trickled) or in stand alone mode.

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Linux
    • Xfce
     
  13. ufw KDE icon

    ufw KDE

     Like
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    KDE front-end to ufw, similar to the GTK/Gnome based gufw.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Linux
    • KDE
    • Kubuntu
    • KDE neon
     
  14. Douane icon

    Douane

     2 likes
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    Douane is a personal firewall that protects a user's privacy by allowing a user to control which applications can connect to the internet from their GNU/Linux computer.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Linux
    Douane screenshot 1
     
12 of 12 NetLimiter alternatives