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HDSDR alternatives: 3 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll SDR software

Top picks

Common reasons people leave HDSDR: windows only, and closed source. We ranked 3 alternatives by how directly each one replaces HDSDR, then by reviews, real visits and how recently each app's facts were checked against its own website. SDR# (SDRSharp) currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1SDR# (SDRSharp) logoSDR# (SDRSharp)Free—NoWindows4 of 468.8
2SDR++ logoSDR++Open source—YesWindows, macOS, Linux4 of 464.8
3Gqrx logoGqrxOpen source—YesLinux, macOS4 of 461.8
  1. SDR# (SDRSharp) logo

    1. SDR# (SDRSharp)Top pick

    Best for: Windows users with an Airspy or RTL-SDR who want a familiar receiver and lots of plugins

    FreeWindows

    68.8

    score / 100

    Why switch from HDSDR

    The most popular free Windows SDR app, with a big plugin ecosystem and first-class Airspy and RTL-SDR support.

    Pros

    • Free download with drivers for Airspy, RTL-SDR and HackRF included
    • Large library of community plugins
    • SpyServer for remote access to a receiver
    • Plugin SDK for developers

    Cons

    • Windows only
    • Closed source
    • Best features are tuned for Airspy hardware
    Visit SDR# (SDRSharp) Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    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 SDR# (SDRSharp) a good HDSDR alternative?

    Verified facts

    4 of 4 verified
    Price
    Free
    Checked Nov 8, 2026airspy.com(opens source in a new tab)
    Bundled drivers
    Airspy, HackRF, RTL-SDR, AOR, RFSPACE
    Checked Nov 8, 2026airspy.com(opens source in a new tab)
    Plugin SDK
    Yes
    Checked Nov 8, 2026airspy.com(opens source in a new tab)
    Platform
    Windows
    Checked Nov 8, 2026airspy.com(opens source in a new tab)
  2. SDR++ logo

    2. SDR++

    Best for: SDR users who want a fast, modern receiver that runs on any desktop

    Open sourceWindows, macOS, Linux

    64.8

    score / 100

    Why switch from HDSDR

    Open-source and cross-platform, runs on Windows, Linux and macOS with built-in drivers for most dongles.

    Pros

    • Light on CPU thanks to SIMD-accelerated processing
    • Multiple VFOs to follow several signals at once
    • Runs on Windows, macOS, Linux and BSD
    • Plugin system for extra sources and decoders

    Cons

    • Receive only; no transmit support
    • Fewer built-in digital-mode decoders than SDRangel
    • Documentation is mostly a PDF manual and community wiki
    Visit SDR++ 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 SDR++ a good HDSDR alternative?

    Verified facts

    4 of 4 verified
    License
    GPL-3.0
    Checked Oct 29, 2026github.com(opens source in a new tab)
    Platforms
    Windows, Linux, macOS, BSD
    Checked Nov 8, 2026sdrpp.org(opens source in a new tab)
    Multiple VFOs
    Yes
    Checked Nov 8, 2026sdrpp.org(opens source in a new tab)
    Hardware support
    SoapySDR and dedicated modules
    Checked Nov 8, 2026sdrpp.org(opens source in a new tab)
  3. Gqrx logo

    3. Gqrx

    Best for: Linux and Mac radio hobbyists who want a well-documented, packaged SDR receiver

    Open sourceLinux, macOS

    61.8

    score / 100

    Why switch from HDSDR

    Open-source receiver for Linux and macOS, the usual pick if you're leaving Windows.

    Pros

    • Packaged by most Linux distributions, Homebrew and Flathub
    • Remote control over TCP and audio streaming over UDP
    • Records both audio and raw I/Q data

    Cons

    • No official Windows build
    • Receive only, with a basic set of analogue demodulators
    • Single VFO, so only one signal at a time
    Visit Gqrx 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 Gqrx a good HDSDR alternative?

    Verified facts

    4 of 4 verified
    License
    GPL-3.0
    Checked Oct 30, 2026github.com(opens source in a new tab)
    Built on
    GNU Radio and Qt
    Checked Nov 8, 2026gqrx.dk(opens source in a new tab)
    Supported hardware
    Airspy, FUNcube, RTL-SDR, HackRF, USRP
    Checked Nov 8, 2026gqrx.dk(opens source in a new tab)
    Mac install
    MacPorts and Homebrew
    Checked Nov 8, 2026gqrx.dk(opens source in a new tab)

The best HDSDR alternative for…

The highest-ranked app in this list for each need.

SDR# (SDRSharp) logo

Best HDSDR alternative for most people

SDR# (SDRSharp)

The most popular free Windows SDR app, with a big plugin ecosystem and first-class Airspy and RTL-SDR support.

SDR++ logo

Best HDSDR alternative for a free option

SDR++

Open-source and cross-platform, runs on Windows, Linux and macOS with built-in drivers for most dongles.

Gqrx logo

Best HDSDR alternative for open source

Gqrx

Open-source receiver for Linux and macOS, the usual pick if you're leaving Windows.

SDR++ logo

Best HDSDR alternative for Mac

SDR++

Open-source and cross-platform, runs on Windows, Linux and macOS with built-in drivers for most dongles.

SDR# (SDRSharp) logo

Best HDSDR alternative for Windows

SDR# (SDRSharp)

The most popular free Windows SDR app, with a big plugin ecosystem and first-class Airspy and RTL-SDR support.

SDR++ logo

Best HDSDR alternative for Linux

SDR++

Open-source and cross-platform, runs on Windows, Linux and macOS with built-in drivers for most dongles.

HDSDR alternatives: common questions

What is the best alternative to HDSDR?

SDR# (SDRSharp) ranks first right now. The most popular free Windows SDR app, with a big plugin ecosystem and first-class Airspy and RTL-SDR support. SDR++ and Gqrx follow it in our ranking.

HDSDR vs SDR# (SDRSharp): what's the difference?

Both HDSDR and SDR# (SDRSharp) are free to use. Both run on Windows.

Is HDSDR free?

HDSDR is free to use. Price: Freeware. Checked on HDSDR's own site, November 2026.

Is there a free alternative to HDSDR?

Yes. SDR# (SDRSharp) (free), SDR++ (open source) and Gqrx (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to HDSDR?

Yes: SDR++ and Gqrx.

Which HDSDR alternatives work on Linux?

SDR++ and Gqrx run on Linux.

Why do people switch from HDSDR?

The complaints we hear most: windows only; closed source; hardware support depends on finding the right ExtIO DLL.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces HDSDR, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.