blixt
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Download Blixt

Free plan, no card required. One download gives you all three interfaces — the desktop app, the local web UI, and the CLI.

Windows

v0.18.0 · amd64 · installer

Everything in one installer: the desktop app, the local web UI and the CLI. Windows 10/11, 64-bit. The app can check for new versions; you approve both the download and the installer launch.

Download for Windows
blixt-0.18.0-windows-amd64-setup.exe

Linux

amd64 · arm64

Blixt is built for Linux too, but the builds are being finalized — subscribe to be notified. We won’t hand you a build we haven’t finished testing.

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macOS

Apple silicon (arm64) · Intel (amd64)

Same story on macOS — the builds are being finalized — subscribe to be notified. We won’t hand you a build we haven’t finished testing.

Notify me

Android v0.1.0 — Preview

An early Android build you can sideload today: arm64 devices, Android 10 or newer. It is a debug build — it is debuggable, which means anything with USB debugging on your device can inspect it while it runs, so treat it as a preview and not as the way to move anything sensitive. Not on Google Play yet, so Android will ask you to allow installing from your browser.

Download the APK About the Android Preview →

blixt-0.1.0-android-arm64.apk

After you download

First transfer in minutes.

  1. Install & run. Run the installer and launch Blixt from the Start menu. The CLI and the local web UI are installed alongside it — or take the zip and run start.cmd instead, nothing has to be installed.
  2. Drop a file, get a code. Twelve words or one short string — share it with your receiver any way you like.
  3. Compare six digits when asked. Android requires the human check by default; desktop waits when either peer enables enforced verification. A match lets you verify nobody sits in the middle. After a recoverable interruption, Blixt requests only verified blocks still missing from the resumable session.
$ blixt send footage.mp4
room code (share it with the receiver):
ocean-vivid-eager-… (12 words)
peer connected · direct/ICE (QUIC)
verify (SAS): 055 437
■■■■■■■■■■■■■■ 100%
✓ complete · transfer verified

$blixt recv --code "ocean-vivid-…"
saved: footage.mp4 · transfer verified

Integrity

Check what you downloaded.

The published downloads below have SHA-256 checksums. Verify the file before you run it with a SHA-256 tool from your operating system, then compare the result with the exact digest shown here.

blixt-0.18.0-windows-amd64-setup.exe

SHA-256: 921bf8a3ccc68646c3334812ade75eaeaa1426c9a89451b12e858251f2d06da0

blixt-0.18.0-windows-amd64.zip

SHA-256: e6f4f3aecf9732b68475fb27c1258e4c85c9763dc49eaaa0e7b00aba02e8b0ac

blixt-0.18.0-windows-x86-setup.exe

SHA-256: 2511e82407420be290698afe2e85fd340b5d5e759bf231b157091f938a8fd27b

blixt-0.18.0-windows-x86.zip

SHA-256: c540ed0ed65d9dd126e93656e81d10f6712cba3af649b1a7e0c02f5c54807f9e

blixt-0.1.0-android-arm64.apk

SHA-256: 767fc3daaab70787ed6f36c646c75433ceb99c6c120e721a31f9f61d12e6630d

FAQ

Fair questions, straight answers.

Installer or zip?

The installer sets up Start-menu entries, the optional “Send with Blixt” right-click item and blixt:// links, and adds the user-controlled verified update flow. The zip installs nothing — unzip anywhere, run start.cmd. Both contain the same binaries. Note the installer is not code-signed yet, so Windows SmartScreen will warn on first run; verify the SHA-256 below if that matters to you.

How do updates work?

Blixt checks this site for a newer version and tells you when one is out. Nothing is installed behind your back: you press Update, the new installer is downloaded, its SHA-256 is checked against the one published here, and only then does it run. Turn the check off in Settings → Updates.

Is Android available? What about iOS?

Android v0.1.0 is available now as an arm64 debug APK for Android 10 or newer. Download the Android Preview, and read the warning above before installing it. Google Play and iOS builds are not available yet; you can join the release updates list.

Do I need an account?

Transfers work after you sign in — that’s how the network knows your plan. The free plan costs $0 and needs no card. See what each plan includes.