Credits & licenses

PixJuice is a thin studio around other people's excellent pixel art. Here is who made what, and the licenses that let us ship it.

The effects: pixelfx

Effects from pixelfx by Patch and Hugo Duprez, MIT License. All 244 effects in this catalog — fire, explosions, ice, melee, arcane, weather and the rest — are rendered live from the pixelfx library's own code. Nothing here would exist without it.

pixelfx itself builds on more good work, described in its NOTICE file: src/core/sim.js and some effects adapt Hugo Duprez's open-source pixel art VFX (MIT), and src/core/act.js adapts ideas from Hollow Crown (MIT).

• pixelfx LICENSE (MIT) — full text, as required by the license
• pixelfx NOTICE.md — the third-party notices above
• github.com/patch-gg/pixelfx — source and docs

The MIT License (pixelfx)

MIT License

Copyright (c) 2026 Patch
Copyright (c) 2026 Hugo Duprez

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

What's PixJuice's, and what isn't

• PixJuice is not "pixelfx". pixelfx is the upstream library and its name belongs to its authors. PixJuice is an independent tool built on top of it, and is not affiliated with or endorsed by Patch or Hugo Duprez.
• Fonts: this site uses your system UI fonts. The pixel font used by the official pixelfx gallery ("Patch Pixel") is not MIT-licensed and is deliberately not used here.
• GIF encoding is done in the browser with gifenc (MIT).
• The PixJuice app code (editor, exports, sound synthesis, styling) is MIT too; the exported effect art is covered by pixelfx's MIT license, so you can use it in your games, commercial included.

Exported files & attribution

Every exported sprite sheet and JSON sidecar records where the art came from: the JSON's meta.app points at the pixelfx repository and meta.pixelfx.id names the effect. You don't owe PixJuice anything for exports — but a nod to pixelfx in your credits screen would make the artists' day.