AppBreakup
Submit an app

Open source BIAS FX 2 alternatives: 2 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

2 of the 3 BIAS FX 2 alternatives we track are open source. Neural Amp Modeler and guitarix rank highest, with facts last verified Nov 8, 2026.

BIAS FX 2 has been discontinued. No longer for sale, according to Positive Grid's BIAS FX 2 page, which directs buyers to its successor BIAS X.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Neural Amp Modeler logoNeural Amp ModelerOpen source—YesWindows, macOS5 of 564.8
2guitarix logoguitarixOpen source—YesLinux4 of 461.8
  1. Neural Amp Modeler logo

    1. Neural Amp ModelerTop pick

    Best for: Guitarists who want accurate captures of real amps for free and don't mind building their own chain

    Open sourceWindows, macOS

    64.8

    score / 100

    Why switch from BIAS FX 2

    Free, open-source capture-based amp modelling with a big community library of profiles.

    Pros

    • Free and open source under the MIT licence
    • Large community library of shared amp and pedal captures
    • Runs as a VST3 or AU plugin and as a standalone app
    • You can capture your own gear with the free trainer

    Cons

    • Each model is a fixed snapshot, so amp knobs can't be turned like a full simulation
    • No built-in effects rack; you add cabinets and effects yourself
    • Quality varies between community-made captures
    Visit Neural Amp Modeler Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Neural Amp Modeler a good BIAS FX 2 alternative?

    Verified facts

    5 of 5 verified
    License
    MIT
    Checked Oct 29, 2026github.com(opens source in a new tab)
    Formats
    VST3, AU, standalone
    Checked Nov 8, 2026neuralampmodeler.com(opens source in a new tab)
    Platforms
    Windows, macOS
    Checked Nov 8, 2026neuralampmodeler.com(opens source in a new tab)
    Modelling method
    Deep learning
    Checked Nov 8, 2026neuralampmodeler.com(opens source in a new tab)
    Model library
    TONE3000
    Checked Nov 8, 2026neuralampmodeler.com(opens source in a new tab)
  2. guitarix logo

    2. guitarix

    Best for: Linux guitarists who want a free amp and effects rack that plugs into JACK and LV2 hosts

    Open sourceLinux

    61.8

    score / 100

    Why switch from BIAS FX 2

    Free open-source amp simulator, a no-cost option for Linux users.

    Pros

    • Completely free and open source under the GPL
    • More than 25 built-in effects modules alongside the amp section
    • Works as a standalone JACK app and as LV2 plugins inside a DAW
    • Packaged by most Linux distributions

    Cons

    • Linux only, with no official Windows or macOS builds
    • Needs a working JACK setup, which can be fiddly for beginners
    • Far fewer amp and cabinet models than commercial suites
    Visit guitarix Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is guitarix a good BIAS FX 2 alternative?

    Verified facts

    4 of 4 verified
    License
    GPL-2.0
    Checked Nov 8, 2026guitarix.org(opens source in a new tab)
    Built-in effects
    25+ modules
    Checked Nov 8, 2026guitarix.org(opens source in a new tab)
    Audio system
    JACK on Linux
    Checked Nov 8, 2026guitarix.org(opens source in a new tab)
    Plugin format
    LV2
    Checked Nov 8, 2026guitarix.org(opens source in a new tab)