Free alpha access through 2026*

Chrome and Windows will warn you

Your download should start in a moment. If it doesn’t, download it here. Here’s how to get past each warning.

JUC-Setup.exe

Suspicious download blocked

1. In Chrome, click the blocked download.

JUC-Setup.exe

Suspicious download blocked

Delete from historyDownload suspicious file
2. Click Download suspicious file.

Windows protected your PC

Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.

More info

Don’t run
3. Open JUC-Setup.exe from your Downloads folder. When Windows warns you, click More info.

Windows protected your PC

App: JUC-Setup.exe
Publisher: Unknown publisher

Run anywayDon’t run
4. Click Run anyway.

In Edge, the warning says the file isn’t commonly downloaded. Choose Keep.

Make sure it’s really ours

Every file has a fingerprint, a long code that changes if even one character of the file changes. This is ours:

7b7c18ee2a4108b91329fc27636bda5b1c865c37cbba14789898746b865fd8ac

To see your copy’s fingerprint, type PowerShell into the Start menu search and open it. Paste this line and press Enter:

(Get-FileHash "$HOME\Downloads\JUC-Setup.exe").Hash

If the two codes match, you have exactly the file we published. If they don’t, delete it and download it again from this page. Handler checks every update this way before installing it.

Why the warnings?

Chrome and Windows warn about any app whose maker hasn’t paid one of the companies they trust to vouch for it. That costs a few hundred dollars every year. Handler is free and we haven’t paid, so you see the warnings, and you can check the fingerprint yourself instead.

Thanks for downloading.

Next

  1. When JUC Setup opens, make sure Handler is checked, and press Install.
  2. Open Handler from the Start menu, pick your microphone, and follow the setup.

Already using Handler? Close it before you run setup.

Feature board Report a bug Request a feature General feedback Email support

Official alpha platform: Windows · macOS planned for later. · Terms · Privacy · Refunds

Free alpha access through 2026; no paid subscription starts automatically. * Free hosted inference is offered through December 31, 2026, as long as we are able to serve it. Beta pricing is planned and is not active.

Source is not available during the alpha. We plan to make it available after.