Lempo Particle Editor

At a glance

• Editor score
  7.5 / 10
• Pricing
  Free plan
• Best for
  GDevelop users wanting a free 2D/3D effect editor
• Free plan
  Yes
• Paid from
  Free
• GPU simulation
  Yes
• Facts checked
  14 Nov 2026

• 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

Our verdict on Lempo Particle Editor

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.

Your product? Our editors can test Lempo Particle Editor in depth and publish a review, labelled as paid · from $149/mo →

Lempo Particle Editor pricing

Lempo Particle Editor fact sheet

Lempo Particle Editor integrations

Lempo Particle Editor lists 1 integrations on its own site.

• GDevelop

Alternatives to Lempo Particle Editor

• UNUnreal NiagaraA full in-engine VFX workflow for teams building projects in Unreal Engine.9.4
• UVUnity Visual Effect GraphA Unity-native graph for large-scale GPU effects, with strongest support in HDRP.9.2
• BBlastFXA detailed desktop particle editor for building effects and exporting them as animation assets.8.5

See all Lempo Particle Editor alternatives →

Featured on iTechGuides

Lempo Particle Editor is listed in our Game Particle Effect Editors directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

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Last updated 14 Nov 2026 · How we research and update