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Lùmen
Native Mac app for GRBL laser engravers, no subscription
Lùmen is a native macOS app for hobbyist laser engravers. Connects to GRBL diode lasers from Sculpfun, Atomstack, Ortur, NEJE, and TwoTrees over USB. Image engraving with 7 dithering algorithms, SVG cutting, dual-layer projects, material presets, and a clean SwiftUI interface that feels at home on a Mac. The Mac-first alternative to LightBurn: €9.99 one-time, no subscription. Built by an indie dev who got tired of running Windows VMs to drive his Sculpfun.
I'm Dimitri, an indie macOS dev. Lùmen started as a personal frustration — I bought a Sculpfun C1 Mini laser engraver last year, plugged it into my MacBook, and… nothing usable. The dominant software in this space, LightBurn, is cross-platform but feels foreign on macOS and recently switched to a $60/year subscription. The free alternative, LaserGRBL, is Windows-only.
Two options: run a Windows VM forever, or build the Mac-native app I wished existed. After several months of development, here's Lùmen.
What it does: - Engrave images with 7 dithering algorithms (Floyd-Steinberg, Atkinson, Burkes, Jarvis, Sierra, Sierra Lite, Stucki) — each tuned for laser output on wood, leather, slate - Cut SVG vector paths with multi-pass support - Dual-layer projects: combine an engrave layer (raster) and a cut layer (vector) in one job - Device presets for Sculpfun, Ortur, Atomstack, TwoTrees, NEJE — pick your model and start - Material presets (wood, leather, acrylic, slate) with starting power/speed values - Safety countdown, framing preview with low-power laser pointer, automatic resume from a stopped line - Project files that save everything: layers, settings, positions
What it's not: - No CO2/Ruida support — only GRBL diode lasers - No camera alignment or rotary axis (yet) - macOS only
Pricing: €9.99 one-time. No subscription, no recurring fees. 3-day free trial on the website.
🎁 Product Hunt launch discount: 50% off for the next 7 days with code `PRODUCTHUNT`. €4.99 instead of €9.99. Valid until May 19.
Tech stack: SwiftUI + AppKit (NSView for the canvas where performance matters), low-level POSIX serial I/O to talk to GRBL firmware. Happy to nerd out on the technical side — there are fun rabbit holes (GRBL's character-counting protocol, stall recovery, the image-to-GCode dithering pipeline).
Would love your feedback — especially if you own a diode laser and a Mac, or if you've shipped niche hardware-control apps. What features would you prioritize next?
Thanks for taking a look 🙏
About Lùmen on Product Hunt
“Native Mac app for GRBL laser engravers, no subscription”
Lùmen was submitted on Product Hunt and earned 8 upvotes and 1 comments, placing #59 on the daily leaderboard. Lùmen is a native macOS app for hobbyist laser engravers. Connects to GRBL diode lasers from Sculpfun, Atomstack, Ortur, NEJE, and TwoTrees over USB. Image engraving with 7 dithering algorithms, SVG cutting, dual-layer projects, material presets, and a clean SwiftUI interface that feels at home on a Mac. The Mac-first alternative to LightBurn: €9.99 one-time, no subscription. Built by an indie dev who got tired of running Windows VMs to drive his Sculpfun.
On the analytics side, Lùmen competes within Mac, Productivity and Apple — topics that collectively have 770.6k followers on Product Hunt. The dashboard above tracks how Lùmen performed against the three products that launched closest to it on the same day.
Who hunted Lùmen?
Lùmen was hunted by Dimitri Giani. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Lùmen including community comment highlights and product details, visit the product overview.
Dimitri Giani
Hi Product Hunt! 👋
I'm Dimitri, an indie macOS dev. Lùmen started as a personal frustration — I bought a Sculpfun C1 Mini laser engraver last year, plugged it into my MacBook, and… nothing usable. The dominant software in this space, LightBurn, is cross-platform but feels foreign on macOS and recently switched to a $60/year subscription. The free alternative, LaserGRBL, is Windows-only.
Two options: run a Windows VM forever, or build the Mac-native app I wished existed. After several months of development, here's Lùmen.
What it does:
- Engrave images with 7 dithering algorithms (Floyd-Steinberg, Atkinson, Burkes, Jarvis, Sierra, Sierra Lite, Stucki) — each tuned for laser output on wood, leather, slate
- Cut SVG vector paths with multi-pass support
- Dual-layer projects: combine an engrave layer (raster) and a cut layer (vector) in one job
- Device presets for Sculpfun, Ortur, Atomstack, TwoTrees, NEJE — pick your model and start
- Material presets (wood, leather, acrylic, slate) with starting power/speed values
- Safety countdown, framing preview with low-power laser pointer, automatic resume from a stopped line
- Project files that save everything: layers, settings, positions
What it's not:
- No CO2/Ruida support — only GRBL diode lasers
- No camera alignment or rotary axis (yet)
- macOS only
Pricing: €9.99 one-time. No subscription, no recurring fees. 3-day free trial on the website.
🎁 Product Hunt launch discount: 50% off for the next 7 days with code `PRODUCTHUNT`. €4.99 instead of €9.99. Valid until May 19.
Tech stack: SwiftUI + AppKit (NSView for the canvas where performance matters), low-level POSIX serial I/O to talk to GRBL firmware. Happy to nerd out on the technical side — there are fun rabbit holes (GRBL's character-counting protocol, stall recovery, the image-to-GCode dithering pipeline).
Would love your feedback — especially if you own a diode laser and a Mac, or if you've shipped niche hardware-control apps. What features would you prioritize next?
Thanks for taking a look 🙏