Lempo Particle Editor review
A free Windows editor for shaping particle effects and exporting them to GDevelop.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Lempo Particle Editor is a standalone Windows desktop application for designing 2D and 3D particle effects, aimed at solo creators and small teams working with GDevelop. Its live viewport preview lets creators adjust effects in the editor, then export them as JSON for use with the Advanced Particle Emitter extension. The project is free and open source under the MIT license, making it a focused option for GDevelop users who want to author effects outside the game engine.
The editor’s feature set goes beyond basic emitter controls. It includes 12 particle shapes, custom shapes, imported 2D images and 3D models, templates, undo and redo, and per-emitter blend modes. Force fields include turbulence, vortex, attractor, and collision plane. Trails and ribbons have width and gradient curve editors, while deterministic seeds are also included. Together, these tools support detailed effect design, though the workflow is oriented around producing effects for the GDevelop extension rather than serving as a general-purpose exporter for multiple engines.
Platform and ecosystem fit are the main constraints. Lempo is listed for Windows 10/11 (64-bit), with a GPU supporting OpenGL 3.3 required. Its documented integration is GDevelop, and the editor exports JSON for that extension. Choose it if you work in GDevelop and want a free editor with live preview and a broad set of particle controls. If you need cross-engine integration or a different desktop platform, an editor built around those requirements is likely a better fit.
Lempo Particle Editor pros and cons
- Where it wins
- Live viewport preview for designing 2D and 3D particle effects
- Custom shapes, imported images and models, plus effect templates
- Force fields, trails and ribbons, with JSON export for GDevelop
- Where it doesn't
- The listed engine integration is limited to GDevelop
- Runs on Windows 10/11 (64-bit) and requires OpenGL 3.3 support
- The standalone editor's export is JSON for use with a GDevelop extension
Lempo Particle Editor fact sheet, pricing and score →
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