NOIRADIX Studio

You've drawn the walk cycle and the clock says nine hours left. Now comes the dull part: slicing the sheet, naming the frames and getting the engine to understand which eight cells mean "walk left". It's a quarter of an hour every time, and at a jam you do it again and again.

That gap is why NOIRADIX Studio exists. Its about panel says it was "built by a solo indie developer to eliminate the repetitive 15-minute bottleneck between drawing a spritesheet and wiring up walking animations in Unity during game jams." The developer is named as Nguyen Duc Canh, who goes by dotlinux26.

It's a pixel art editor that opens in a browser tab, with no install and no account. You start a new project or load one of two sample sprites, and you're drawing.

The editor is laid out around a sprite sheet grid, with layers, symmetry drawing and built-in palettes such as Pico-8 and Endesga 32. Animation clips sit on top of that. You can set up four-direction, eight-direction, platformer or custom clips, play them as a loop, once or ping-pong, and turn on onion skinning to see the neighbouring frame while you draw.

The export step is where it earns the tab. The Unity option produces a PNG atlas, a metadata file and a C# importer script. A TexturePacker-style JSON export covers engines that read that format, and the page names Godot, Phaser and GameMaker among them. One limit is spelled out plainly: the Unity importer doesn't create an Animator Controller for you.

Then there's the unusual part. NOIRADIX calls itself AI-native, but no AI model runs inside it. It has its own text format, PIX2, that describes a sprite as coordinates. You copy a ready-made prompt into a chatbot of your choice, paste back the code it returns and apply it to the canvas. Whatever you type into that chatbot is between you and that service.

There's nothing to pay. The code is open source under the Apache 2.0 licence, and the only money link is a Ko-fi tip jar. The terms say your artwork belongs to you, commercial projects included.

According to its privacy policy, dated November 7, 2026, the app is fully client-side, with no account and no tracking servers, and your pixel art files never leave your computer. It saves through the browser's file access feature and keeps an autosave in the browser. One small footnote: the page does load an icon font from a public CDN, which the policy doesn't mention.

It's also brand new. The GitHub repository was created on November 6, 2026 and the version shown is 2.1.8, so expect rough edges and quick changes. Frames top out at 512 by 512 pixels.

If you've got a jam coming up, open it the night before and push one sample sprite all the way into your engine. You'll know by bedtime whether it saves you those fifteen minutes.