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Janus Studio is live: 17 game-creation tools in your browser

The tools we use to make our own games are now open to everyone. Seventeen of them, from concept art to engine-ready sprite sheets, with nothing to install.

Janus Studio
17 tools

Janus Studio is open: seventeen game-creation tools that run in your browser, built by the same team that makes our games. No install, no setup — open a tab and start making.

We built Studio because we needed it. Puppies vs. Kittens and RiftBleed are made with the same pipelines that power these tools, from first sketch to engine-ready sprite sheet. Now anyone can use them.

What’s inside

  • Make a game — Game Genie. Describe a game in a sentence and play it seconds later.
  • Image — Image Forge, Magic Edit and Background Remover: prompt to game-ready art, edits in plain English and clean cut-outs with real alpha.
  • Sprites & 2D — Sprite Forge, Pixel Snap, Chroma Key, Sprite Slicer, Atlas Packer and Tile Forge: from a character concept to an animated, engine-ready atlas for Bevy, Phaser or Godot.
  • 3D & materials — Voxel Forge, 3D → 2D and Material Forge: voxel models, 3D-to-sprite rendering and full PBR material sets.
  • Audio — SFX Lab, Voice Studio and Music Studio: synthesized sound effects, character voices with performance direction and original soundtrack clips.
  • Video — Video Studio. Animate your key art into trailer shots and cutscenes.

Free where it can be

Tools that run entirely in your browser — Pixel Snap, Chroma Key, Sprite Slicer, Atlas Packer, Voxel Forge, 3D → 2D and SFX Lab — are free. AI-powered tools use credits, every button shows its price before you click, and every visitor starts with free credits to try them.

Everything you make lands in your library, and every result has a Send to… button so you can hand it straight to the next tool: generate a character, cut it out, animate it, pack the atlas. Generated images carry provenance and IPTC AI-marking.

Built for coding agents, too

Every AI tool in Janus Studio is also available through the Janus API and an MCP server, so the coding agent you already work with can call the same tools you use in the browser.

Want to see more?

Open Janus Studio

More from the studio

Puppies racing across a sunny backyard lawn while kittens watch from the fence top, a windowsill and the porch railing.
Puppies vs. Kittens

Puppies vs. Kittens: meet the Pack and the Clowder

Eight puppies, eight kittens, one sunny neighborhood and the best hour of the day. Here’s the story behind our warmest universe — and the four games growing out of it.

Game Genie
“a kitten hopping between rooftops, collecting stars”
Playable in seconds
Janus

Introducing Game Genie

Describe a game in a sentence. A few seconds later, you’re playing it. Meet the Janus game-building agent.

A runner sprints through a derelict company town toward a glowing amber anchor while a cold blue tear in the sky shows gothic towers from another world.
RiftBleed

RiftBleed: two Earths, one wound

One Earth where magic won. One where technology won. Now they’re bleeding into each other. Meet RiftBleed — five games, five genres, five doors into one universe.