K2 Printer Backup

Free, open Windows app that backs up and restores your Creality K2's Klipper configuration over SFTP. One zip per backup, one-click restore, automatic Klipper restart afterwards. No print-data is touched.

v1.0.0 ~234 KB Windows 10 / 11 Updated 26 April 2026 No account, no telemetry
Download K2-Backup.exe Direct download · no installer, runs as a single file.
K2 Printer Backup window: printer IP field, Backup and Restore buttons, status log.
The whole app on one screen — type the printer's IP, click Backup, done.

What's in the zip

Backed up in one click

Everything in /mnt/UDISK/printer_data/config on the K2, captured into a single timestamped zip:

  • printer.cfg
  • macros.cfg
  • KAMP_Settings.cfg
  • saved_variables.cfg
  • moonraker.conf
  • custom *.cfg
  • manifest.json

Features

What it does

Connects to your K2 over SFTP using the standard root login, pulls down everything in /mnt/UDISK/printer_data/config — printer.cfg, all macros, KAMP, custom .cfg files — and packs it into a single timestamped zip on whichever drive you choose. Each zip carries a small manifest noting which printer and when, so a restore can confirm what it's about to overwrite.

On restore, the same data goes back, and it offers to restart Klipper for you so the new config takes effect — via Moonraker's FIRMWARE_RESTART if reachable, or via the procd init script over SSH as a fallback. No full system reboot needed.

Why use it

  • Saves you from "the touchscreen update wiped my macros".
  • Backups travel as one zip — email it, drop it on a USB stick, sync it via Dropbox/OneDrive.
  • Restore picks the zip with a normal Open File dialog — no folder-level confusion.
  • Works on stock Creality K2 firmware. KAMP-K2, custom macros and other tweaks are all preserved.
  • Open source. No account, no telemetry, no auto-update phoning home.

Get started

Quick start

  1. Download and run K2-Backup.exe. On first run the app will ask permission to install one free Windows PowerShell module (Posh-SSH) — no admin rights needed, current user only.
  2. Find your printer's IP on the K2 touchscreen: Settings › Network › IP Address. Type it in. The default password (creality_2024) is built in — tick the box if you've changed it.
  3. Click Backup, choose where to save, done. The zip is written to K2-Backup_<ip>_<timestamp>.zip. To restore later, click Restore and pick the zip.

First launch — what to expect

The app is not yet code-signed, so on first launch Windows SmartScreen will say "Windows protected your PC". This is a generic warning shown for every unsigned executable from a small publisher — it doesn't mean anything's wrong with the file.

To launch: click More info › Run anyway. The app then checks for the Posh-SSH module and you're set.

If you'd like to verify the file is the one I published before running it, see “Verify your download” below.

Before you run it

Requirements

  • Windows 10 or 11 (any edition).
  • Creality K2 (Plus/Max likely fine but only K2 has been tested).
  • Printer reachable on your LAN. Wired ethernet is recommended — more reliable for SFTP than wifi.
  • Internet on first run (to fetch Posh-SSH from PowerShell Gallery). After that the app is fully offline.

What it does not back up

  • G-code files / sliced prints (those live elsewhere on the printer and can be huge).
  • Timelapse footage.
  • Creality account / cloud settings.
  • Firmware itself — that's flashed by Creality's own update path.

Versions

All versions

Hit a regression on the latest? Grab a previous one. Each release is a single .exe with a published SHA256. To verify on Windows: Get-FileHash K2-Backup.exe -Algorithm SHA256.

  1. v1.0.0 Latest 26 April 2026 · ~234 KB · Windows 10 / 11

    Initial release. SFTP backup & restore of /mnt/UDISK/printer_data/config, one-click Klipper restart on restore (Moonraker FIRMWARE_RESTART with SSH fallback).

    Download v1.0.0
    SHA256 
    58d1dadfc8bb9329eef1e8eefa2a51b76993f5cef40938656d6fe56eb5d6a74a

Ready to back up your K2?

Single Windows file, ~234 KB. No installer, no account.

Download K2-Backup.exe

Hit a bug or want a feature? Send a note via the contact form — happy to hear from K2 owners.