Latest release · 0.3.10 · 14 Aug 2026

Download TwinScope

Free, MIT-licensed, and offline by design. macOS is the primary target; Windows and Linux can be built from the same source, but neither has been run on its own platform.

macOSApple siliconTwinScope-0.3.10-arm64.dmg · 135 MBDownload .dmg

macOS 13 or later. Unsigned — one extra step to open, see below.

macOSInteluntestedTwinScope-0.3.10.dmg · 136 MBDownload .dmg

For Intel Macs. Cross-compiled from Apple silicon and not run on an Intel machine.

Windowsx64untestedTwinScope.Setup.0.3.10.exe · 109 MBDownload .exe

NSIS installer, built on a Windows runner. Unsigned, so SmartScreen will warn, and nobody has run the app on Windows yet.

LinuxAppImage · x64untestedTwinScope-0.3.10.AppImage · 142 MBDownload AppImage

chmod +x it and run. Built on a Linux runner, untested on Linux.

LinuxAppImage · arm64untestedTwinScope-0.3.10-arm64.AppImage · 141 MBDownload AppImage

For 64-bit ARM machines. Cross-compiled and untested.

Linux.deb · x64untestedtwinscope_0.3.10_amd64.deb · 110 MBDownload .deb

sudo apt install ./twinscope_0.3.8_amd64.deb. Untested on Linux.

Linux.deb · arm64untestedtwinscope_0.3.10_arm64.deb · 104 MBDownload .deb

For 64-bit ARM machines. Cross-compiled and untested.

Verify what you downloaded

SHA-256 TwinScope-0.3.10-arm64.dmg 3cdd174a6724d85fcb5cb1adcd453cc579725ecf1bf14af90d567db50868ad28 $ shasum -a 256 ~/Downloads/TwinScope-0.3.10-arm64.dmg

Or skip the download: the command line

Every engine on this page also runs from a terminal, and that route needs no dmg, no Gatekeeper detour and no download at all — just Node 22.12 or newer.

Run it once, or install itbash

npx twinscope before.json after.json

npm install -g twinscope

One bundled file with zero dependencies and no native modules. It is the same detection and the same engines as the app, and it exits 0, 1 or 2 so a script can act on the answer — see the command line and CI.

Or build it yourself

Terminalbash

# Node 24 (nvm use picks it up from .nvmrc)
git clone https://github.com/codeAesthetic/twinscope.git
cd twinscope
npm install        # also fetches the Electron binary
npm run package:mac

The dmg lands in release/. Nothing compiles on your machine — history uses Node’s built-in SQLite, so there is no native module to rebuild. Swap package:mac for package:win or package:linux on those platforms, with the caveat above.