Nerulio Sprite Lab
Nerulio Sprite Lab: A free browser tool for reviewing, editing, and exporting existing sprite animations. Ranked #22 of 26 in Game Sprite Editors by our editors (5.9/10); pricing: Free plan; best for web users reviewing and exporting existing animations.
At a glance
- Editor score5.9 / 10
- PricingFree plan
- Best forWeb users reviewing and exporting existing animations
- Free planYes
- Paid fromFree
- Facts checked14 Nov 2026
Where it wins
- Imports common sprite sheets, animation files, and atlas formats
- Provides playback, onion skinning, frame timing, tags, and frame edits
- Exports engine-oriented assets while processing files locally in the browser
Where it doesn't
- Focused on animation preparation and export, not painting
- Runs only on the web
- Maximum animation frame count is not documented
Our verdict on Nerulio Sprite Lab
Nerulio Sprite Lab is a browser-based workspace for preparing sprite sheets and existing animations for games. It suits solo developers and small teams who need to organize frames, inspect motion, set animation metadata, and export assets for a game engine. It is focused on animation, slicing, packing, and export; painting is handled in a separate Pixel workspace.
The animation tools cover tags, direction, repeat count, per-frame durations, frame reordering, duplication, and flipping. Playback includes loop, ping-pong, repeat, onion skin, and a floating preview. Users can also adjust per-frame pivots, hit and hurt boxes, custom boxes, and collision polygons. This makes the product more suitable for refining imported work and preparing it for a project than for creating artwork from scratch.
Imports include sprite sheets, numbered frame files, GIF and APNG, Aseprite files and JSON, TexturePacker JSON, and Starling XML. Pack & Export targets include Godot, Unity, Phaser, PixiJS, Spine/libGDX, Starling/Sparrow, LÖVE, Defold, and GameMaker, alongside image and atlas formats. The vendor describes processing and exporting in the browser without uploading files, and says the tool is free to use without an account. Choose Sprite Lab if you want a web-based review and export workflow for existing animations; look elsewhere if you need painting in the same workspace or a documented maximum animation size.
Your product? Our editors can test Nerulio Sprite Lab in depth and publish a review, labelled as paid · from $149/mo →
Nerulio Sprite Lab pricing
Nerulio Sprite Lab fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Onion skinning | Yes |
| Sprite-sheet tools | Yes |
| Tilemap tools | Not verified |
| Layer support | Not verified |
| Max animation frames | Not verified |
| Supported platforms | web |
| Export formats | PNG, GIF, APNG, Aseprite JSON, Aseprite, TexturePacker JSON, Starling XML, Godot, Unity, Phaser, PixiJS, Spine/libGDX atlas, LÖVE, Defold, GameMaker strips, CSS sprites |
| Deployment | Cloud |
| Platforms | Web |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 10 integrations: Godot, Unity, Phaser, PixiJS, Aseprite, Spine/libGDX … |
| Pricing | Free plan |
| Website | nerulio.com |
| Facts checked | 14 Nov 2026 |
Nerulio Sprite Lab integrations
Nerulio Sprite Lab lists 10 integrations on its own site.
- Godot
- Unity
- Phaser
- PixiJS
- Aseprite
- Spine/libGDX
- Starling/Sparrow
- LÖVE
- Defold
- GameMaker
Alternatives to Nerulio Sprite Lab
- AsepriteA focused desktop editor for pixel art, sprite animation, tilemaps, and export.9.3
- Pro Motion NGA sprite-focused desktop editor with tilemap and indexed-color tools, plus a free edition.8.7
- PiskelA free, approachable sprite editor with GIF and spritesheet export across web and desktop.8.3
See all Nerulio Sprite Lab alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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