Linux has fewer mainstream projection-mapping applications than Windows or macOS, but it has several genuinely useful options—from a focused Steam-based mapper to open-source tools for artists and immersive multi-projector spaces. The biggest decision is whether you want a straightforward desktop workflow or a deeper installation/calibration system.
- Best focused Linux mapper: HoloMapper.
- Best free/open-source general mapper: MapMap.
- Best immersive calibration engine: Splash.
- Best portable Linux workflow: HoloMapper on Steam Deck/Desktop Mode.
Linux projection mapping software compared
| Software | Best for | Model |
|---|---|---|
| HoloMapper | Focused real-time mapping, media layers, NDI/Spout workflows, Steam Deck | Paid one-time purchase via Steam; Early Access |
| MapMap | Free general-purpose mapping and learning | Free + open source (GPL) |
| Splash | Immersive spaces, projector calibration, blending, 3D-surface workflows | Free/open-source ecosystem; Flatpak available |
1. HoloMapper — best focused projection mapper for Linux/SteamOS
HoloMapper supports Linux/SteamOS through Steam and is designed around the practical “editor on one screen, clean projection on another” workflow. Current features include mesh warping, Bezier curves, quads/circles/lines/custom shapes, text, images, video, GIFs, animation presets, snapping, layer management, and NDI/Spout input/output.
The Steam system requirements currently call for Ubuntu 22.04+ or SteamOS 3.0+ as a minimum reference, OpenGL 3.3-capable graphics, and Proton Experimental. For Steam Deck, Desktop Mode is recommended.
Best for: Linux creators who want a current, focused mapper without building the project from source.
2. MapMap — best free/open-source Linux mapper
MapMap is a free, open-source video-mapping project that explicitly supports Linux, macOS and Windows. Its current documentation covers media, layers, shapes, saving/loading projects, external display output and OSC. The Linux version also documents webcam media support.
MapMap is an excellent learning and small-project choice. Because it is open source, technically inclined users also have the option to build or modify it rather than depending entirely on a vendor release.
3. Splash — best for immersive multi-projector spaces
Splash describes itself as an immersive video-mapping engine. It focuses on projector calibration, field of view, optical shift, projection blending, color, and mapping video onto spaces defined by a 3D model. A Flatpak is available for Linux.
That makes Splash a different class of tool from HoloMapper or MapMap. If you are building a room-scale immersive environment with several projectors, semi-automatic calibration and blending are more important than a lightweight surface editor. If you are mapping a prop or one wall, a focused desktop mapper is much simpler.
Linux projector setup checklist
- Connect the projector and make sure your desktop environment detects it as a second display.
- Choose Extend rather than mirror/clone.
- Set a stable native or known-good resolution and refresh rate.
- Keep display scaling consistent where possible; fractional scaling can complicate coordinate assumptions in some apps.
- Disable screen blanking and automatic suspend during shows.
- Test the exact GPU driver and display server configuration before arriving on site.
Projection mapping with a Steam Deck
HoloMapper’s Linux support creates an unusual portable option: a Steam Deck can act as the control computer while an external display or projector receives the mapped output. HoloMapper recommends Desktop Mode and Proton Experimental for the current Steam Deck workflow, with keyboard/mouse input recommended for detailed editing.
For small installations, art demos, portable experiments or quick projector tests, that can eliminate the need to carry a full laptop. For heavy multi-video scenes, use realistic expectations: the Deck is portable hardware, not a high-end media server.
For more platform choices, see Windows projection mapping software and the full 2026 software comparison.
Frequently asked questions
Does projection mapping software run on Linux?
Yes. HoloMapper, MapMap and Splash are three current options with different goals. HoloMapper focuses on direct surface mapping, MapMap is free/open source, and Splash targets immersive calibration.
Can I use a Steam Deck for projection mapping?
Yes. HoloMapper supports SteamOS/Steam Deck workflows. Desktop Mode, an external display/projector and Proton Experimental are currently recommended.
Is there free projection mapping software for Linux?
Yes. MapMap is free/open source, and Splash is also available through the open-source Linux ecosystem. See our separate free-software guide for licensing details.
Sources and further reading
Product capabilities and platform notes can change. These official or primary sources are useful for checking current details:
