Skip to content
pqdoctor

Downloads

The current release is v0.2.1, published on 2026-10-16: Flarebox 0.2.1 for Windows and Linux, and pqdoctor 0.2.1 for Windows, macOS and Linux.

Flarebox for Windows · Setupv0.2.1 · Windows x64 · 5.1 MB

Setup program (x64). Installs for your user only, no admin needed.

DownloadFlarebox_0.2.1_x64-setup.exe

SHA-256 2dec5a103ca7569b1ed13bbb8e0f7bb17a0421c09fe2e3986e81aeb44dbd83bc

Flarebox for Windows · MSIv0.2.1 · Windows x64 · 6.9 MB

Windows Installer package (x64). Installs for all users and needs admin. Use it for Intune, Group Policy or other managed deployment.

DownloadFlarebox_0.2.1_x64_en-US.msi

SHA-256 3c8d3eb32e9eec1fb2e1dea137a9a19ef82f88c40e680abcb5dbc499b92de1c3

Flarebox for Linux · .debv0.2.1 · Linux x86_64 · Debian, Ubuntu · 7.9 MB

A Debian / Ubuntu package (apt install ./file). Installs its WebKitGTK dependency; updates come as a new download.

DownloadFlarebox_0.2.1_amd64.deb

SHA-256 96b3e5490041cc1f6cdb9d2b2134b33cd4038ca3bd59649ea7b02d037d2f04fa

pqdoctor for Windowsv0.2.1 · Windows x64 · 1.3 MB

The pqdoctor command-line tool for Windows. A single file, nothing to install.

Downloadpqdoctor-0.2.1-windows-x64.exe

SHA-256 c1220199323deaef624abc0e30665783fab2433ad7b04e164af02ac6d115b00a

pqdoctor for macOSv0.2.1 · macOS 11+ · Apple silicon and Intel · 1.4 MB

One universal binary for Apple silicon and Intel Macs, with the README and license.

Downloadpqdoctor-0.2.1-macos-universal.tar.gz

SHA-256 52fb423de0e387e460519b64867a8dbb9f493dab5b401befaa7e98fbae94cdf8

pqdoctor for Linuxv0.2.1 · Linux x86_64 · any distro · 800 KB

A static binary (musl): no glibc version or system packages needed.

Downloadpqdoctor-0.2.1-linux-x64.tar.gz

SHA-256 6be9049979c1d6377d6b3c49f1cbf3c280b6cec7b760ea998257139d74c4e727

pqdoctor for Linux (Arm)v0.2.1 · Linux arm64 · any distro · 748 KB

A static binary for 64-bit Arm: Raspberry Pi 4 and 5, AWS Graviton, Ampere.

Downloadpqdoctor-0.2.1-linux-arm64.tar.gz

SHA-256 3ded3bcfd31b6e698e0800abe1c1a7d1e2ccfb7dc6b2e44c40d1970ec077d8ac

Released 2026-10-16 · Release notes · SHA256SUMS.txt

Which file do I want?

Section titled “Which file do I want?”
You want to… Download
Check servers from Windows pqdoctor for Windows (.exe). Nothing to install
Check servers from a Mac pqdoctor for macOS. One universal binary for Apple silicon and Intel, macOS 11 or later
Check servers from Linux, in CI, or on a server pqdoctor for Linux: x86_64, or Arm for Raspberry Pi 4/5 and Graviton. Static, any distribution
Build it yourself cargo install pqdoctor (Build from source)
Use Flarebox on your own PC Flarebox setup (.exe). Per user, no admin rights
Roll Flarebox out to many PCs Flarebox MSI. All users, for Intune, Group Policy or msiexec
Use Flarebox on Linux Flarebox .deb (Debian, Ubuntu; x86_64)

Flarebox includes the same pqdoctor engine, so you don’t need the CLI to use the app’s post-quantum features.

System requirements

Section titled “System requirements”
Flarebox pqdoctor CLI
OS Windows 10 or 11, x64; Linux x86_64 Windows x64; macOS 11+ (Apple silicon and Intel); Linux x86_64 or arm64, any distribution
Runtime WebView2 on Windows (included in 10 and 11); WebKitGTK 4.1 on Linux None
For local Workers projects Node.js and the project’s own wrangler (or npx) —
For Cloudflare account views A Cloudflare API token you create (Tokens and permissions) —
Network Outbound TCP 443 to servers you check; port 80 for the optional Server header Same

Verify the download

Section titled “Verify the download”

Each release has a SHA256SUMS.txt. Compare the hash of the file you downloaded with the one listed for it.

Terminal window
Get-FileHash .\pqdoctor-0.2.1-windows-x64.exe -Algorithm SHA256

The hash must match exactly. If it doesn’t, delete the file and download it again.

Windows SmartScreen

Section titled “Windows SmartScreen”

The CLI isn’t code-signed. On first run, Windows may show “Windows protected your PC”.

  1. Check the file’s SHA-256 against SHA256SUMS.txt first (above).
  2. Click More info.
  3. Click Run anyway.

The checksum is how you know the file is the one that was published.

macOS Gatekeeper

Section titled “macOS Gatekeeper”

The macOS binary is ad-hoc signed but not notarized by Apple. Downloaded with curl it runs as is. If you downloaded it in a browser, macOS quarantines it and says it “cannot be opened because Apple cannot check it for malicious software”. After checking the SHA-256, remove the quarantine flag:

Terminal window
xattr -d com.apple.quarantine pqdoctor

Package managers

Section titled “Package managers”

pqdoctor is also packaged, installing the same release binaries from this page, checked against their SHA-256:

Where Command
Homebrew (macOS, Linux) brew install kalyan-deva/tap/pqdoctor
Scoop (Windows) scoop bucket add kalyan-deva https://github.com/Kalyan-Deva/scoop-bucket then scoop install pqdoctor
winget (Windows) winget install KalyanGopalam.pqdoctor (once Microsoft has merged it)
cargo-binstall (any OS with Rust) cargo binstall pqdoctor: the prebuilt binary, no compile

Build from source

Section titled “Build from source”

The pqdoctor CLI’s source is on crates.io. With Rust stable installed, on any OS:

Terminal window
cargo install pqdoctor

Flarebox’s source is in the project repository, which is private for now.

Earlier releases

Section titled “Earlier releases”
  • v0.2.0 (2026-10-16): the first Flarebox release (Windows) and pqdoctor 0.2.0. Its files stay at /downloads/v0.2.0/.
  • v0.1.0 (2026-10-15): the first pqdoctor release, for Windows, macOS and Linux. Its files stay at /downloads/v0.1.0/.

What changed in each release is in the changelog.