LightBurn
The software most laser owners end up running, and for good reason: it takes you from artwork to a fired laser in a single, polished app. It is also one of the very few laser tools with genuine native builds for Windows, macOS and Linux.
LightBurn is the de-facto standard for hobby and small-shop lasers because it does everything well: vector design, raster engraving, layer-based cut settings and direct machine control all live in one application. It is closed-source and paid — but unlike most of its rivals it runs natively on macOS and Linux, so if you are not on Windows it is usually the answer. Pay for it when your time matters more than the licence cost.
What it is
LightBurn is design software and laser control rolled into one. You lay out or import your artwork — vectors, text, or raster images — assign each shape to a coloured layer with its own speed, power and cut order, and then send the job straight to the machine over USB or network from the same window. There is no separate slicer or sender step: the app that draws the work is the app that fires the laser.
It talks to a wide range of controllers — GRBL (the diode and small-CO₂ world), Ruida (the larger CO₂ machines), plus Marlin, Smoothie and others — so a single licence usually covers whatever hardware you move to next. Importantly, it understands both vector work (cutting and scoring lines) and raster work (greyscale engraving), and lets you mix them on one job.
Where it wins
- Genuinely cross-platform. Native Windows, macOS and Linux builds — not a Windows app under emulation. In a category dominated by Windows-only tools, this is its single biggest practical advantage.
- One app, whole workflow. Design, arrange, set per-layer power/speed, preview the path with timing, and run the job — all without exporting to a second program.
- Polished and stable. It feels like commercial software because it is: consistent UI, sensible defaults, good documentation, active development and responsive support.
- Camera alignment. Add a supported USB camera and LightBurn overlays a live view of the bed, so you can position artwork visually onto the actual material and trace existing objects.
- Broad controller support. The same licence drives cheap GRBL diode lasers and serious Ruida CO₂ machines, which is why it has become the default thing people install.
Where it still hurts
- Paid and closed-source. There is no free tier beyond the trial, and you cannot inspect, fork or self-host it. For a workshop built on open tooling, that is a real philosophical cost.
- Licence tiers gate hardware. The licence is keyed to a class of controllers — the cheaper tier covers GRBL-class machines, and you pay more to unlock the high-end DSP (Ruida) controllers. Check your machine maps to the tier you are buying.
- Updates expire. A licence is perpetual for the version you own, but bundled updates run for a year; staying current after that means renewing.
The AI angle
The richest seam here is image-to-engraving. Turning a photo into something a laser can burn convincingly is fundamentally an image-processing problem — LightBurn already ships dithering, halftone, greyscale and Jarvis/Stucki-style algorithms to map continuous tone onto a single-power beam. This is exactly the territory where machine learning helps: a model can choose the right dithering and power curve for a given material, predict how a photo will actually engrave on wood versus anodised aluminium, or pre-correct an image so the burnt result matches the original tonal range. None of that is built in today, but "drop in a photo, get a material-aware engraving preset" is an obvious near-term workflow. Cut optimisation — ordering and nesting paths to minimise travel and scrap — is another classic place where solvers and ML can quietly save time and material.
Cross-platform note
This is the headline reason to reach for LightBurn on this site. Most capable laser software is Windows-only — LaserGRBL, the popular free GRBL sender, is a Windows-only .NET application, and that is a dealbreaker for a lot of Mac and Linux makers. LightBurn is the dependable cross-platform answer: it runs natively on macOS and Linux as a first-class target, not as an afterthought. If you are on a Mac and want a single polished tool that handles both design and machine control, this is the one to buy. If staying open-source matters more than convenience, the browser-based LaserWeb is the cross-platform open alternative — less polished, but free and inspectable.
Start here
- Grab the free trial from lightburnsoftware.com — it is fully featured for a limited period, so you can confirm it drives your controller before paying.
- Pick the licence tier that matches your controller class (GRBL-class versus DSP/Ruida) — don't overbuy or underbuy.
- Run a material test grid early: LightBurn's built-in test pattern tool sweeps power and speed so you can dial in settings for each material once.