Denvi/Candle
GRBL controller application with G-Code visualizer written in Qt. observed · 2026-08-28
Health v2 · maintenance only
84/100
- Activity 99
- Release rhythm 57
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 37
- age_days: 4067
- days_rel: 205
- days_push: 8
- n_releases_24m: 6
Adoption not part of the score
1674 stars · 606 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Candle is a GRBL controller application with a G-Code visualizer written in Qt/C++. It lets users control GRBL-based CNC machines via console commands, buttons, and numpad, monitor machine state, and load, edit, save, send, and visualize G-code files.
Use cases
- control a GRBL-based CNC machine from my computer
- visualize G-code files before running them on a CNC mill
- send G-code files to a CNC machine over serial
- monitor the state of my CNC machine during a job
- edit and save G-code files with a GUI
- generate and use heightmaps for CNC work
- jog my CNC machine with a numpad or on-screen buttons
When to choose
- you have a GRBL-based CNC machine (v0.9 or v1.1 firmware) and need a desktop controller
- you want a free, cross-platform (Windows/Linux/macOS/Raspberry Pi OS) G-code sender with visualizer
- you prefer a native Qt GUI over web-based or command-line GRBL senders
When to avoid
- your CNC runs firmware other than GRBL (e.g., Marlin, Smoothie)
- you need a web-based or headless controller for remote/automated operation
- you require advanced CAM features like toolpath generation rather than sending existing G-code
Facets
application · maturity active
gui data-visualization developer-tools hardware desktop-applications windows cross-platform grbl cnc gcode gcode-visualizer qt heightmap cnc-machine-control automation linux macos desktop
1 source
- readme: https://github.com/Denvi/Candle · fetched 2026-08-28 · 683a9bb32021
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Denvi/Candle | main | 84 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem