PeerBlock 1.2 Release 693

4.7 out of 5 stars 4.7 (120 votes)


Windows 7/2000/Vista/XP / Open Source / 15,857 downloads

PeerBlock is a new version of the popular Peer Guardian 2 software. It blocks "known bad" computers from accessing yours, for example governments, corporate entities, and those flagged for anti-p2p activities. It maintains the functionality of the original Peer Guardian 2 program, but includes fixes for various issues that remain unaddressed in the latest (~2 year old) version of PG2.

Reviews of PeerBlock

  1. 5 out of 5 stars

    Reviewing 1.2 Release 693 (Jun 22, 2014)

    Yeah this program is excellent , it adds a real point in net security but only if used both with a real and updated ipfilter like ipfilterX by nexus23 labs.
    Forget the obsolete filters never updated and especially huge filter,
    they filter like 90% of the net in an useless way.

  2. 5 out of 5 stars

    Reviewing 1.1 Release 691 Beta (Jan 10, 2014)

    A very very nice product, application. Many lists available, tiny footprint and works like a charm. GUI ys very well thought, extra simple to handle.
    One example. I have on Pale Moon browser (Firefox in same conditions) the well known Adblock Plus add-on working in conjunction with another one, "Disconnect". Both are instructed to filter Facebook calls when the user is not on Facebook, OK? Well, believe it or not, some sites call Facebook either with urls not handled by either the add-ons mentioned, either by the direct "numerical" url (sorry for my English) such as
    This is blocked with PeerBlock bacause I have a Facebook list given to PeerBlock. This illustrates the advantage of the application and also how tricky some techniques can become.

  3. 5 out of 5 stars

    Reviewing 1.1.0 Release 677 Beta (Dec 2, 2013)

    The finest peer blocking software available. Light resource usage, tiny install. Tons of options. Highly recommended. I-Blocklist integration, and now those purchases are shared with PeerBlock to help development.

  4. 1 out of 5 stars

    Reviewing 1.1.0 Release 518 (Jun 10, 2013)

    Peerblock does not update enough.

  5. 5 out of 5 stars

    Reviewing 1.1.0 Release 518 (Nov 23, 2010)

    The only thing missing is a Linux compatible version.

Discuss PeerBlock

  1. Dec 7, 2013 - 2:11 AM

    Glad to see the come back, so long time to wait !

  2. Aug 5, 2009 - 10:55 AM

    Hi all, this is the lead developer of PeerBlock.

    Just wanted to warn you that this version of our program, PeerBlock 0.9.1 (r71), has a bug in it that can cause a rare Windows crash during shutdown/reboot. We've released a fix for this problem last night (PeerBlock 0.9.2 (r86), just now noticed that this site is linking directly to the old version. I STRONGLY URGE YOU TO UPGRADE to the fixed version, and apologize for the inconvenience.

    (For what it's worth the bug looks to be a day-one bug in the old PeerGuardian code, but for some reason our recent release included some changes that made the problem happen more frequently. Frequently being a relative term, we only have three reports of this problem being hit after 1000+ downloads...)

    Also, as far as the "Peerblock is unable to load the packet filtering driver" error goes, this is caused by Windows Vista and Win7 requiring a "signed driver" before it will let the driver be loaded. We have some workarounds listed on our website that will help you bypass this checking and get PeerBlock working on your machine: ( We are also collecting donations for a "signed driver fund", to enable us to purchase the code-signing certificate we need to generate a true signed driver so we won't need any of these workarounds - if you're in a position to help out, please consider contributing a few dollars: (http://devblog.peerblock...want-signed-driver.html).


    --- Mark ---