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Show HN: I built an AI spritesheet generator for game developers

AutoSprite lets developers upload a single sprite, pick a moveset, and export engine-ready spritesheets automatically. Supports Unity, Godot, GameMaker, Phaser, and more, with real-time preview, per-move FPS tuning, loop control, and reusable presets for team collaboration.

SourceHacker News AIAuthor: autosprite

Sprite to spritesheet in seconds

From idea to spritesheet in seconds

Try It Free

Upload a single sprite, pick a moveset, and export engine-ready spritesheets automatically.

  1. Upload or create a character

Drop in any image or start from our presets and AutoSprite keeps everything aligned while you select the animations you need.

No manual trimming, padding, or renaming.

Pick idle, walk, run, jump, attack, or custom moves per direction.

  1. Preview

Play your character instantly in the browser. Toggle moves, test collisions, and tweak settings while AutoSprite updates the preview in real time.

Gamepad-style controls to feel movement instantly.

Adjust timing and loops, see results right away.

  1. Export

Download PNG spritesheets and matching atlas files that drop straight into your engine or pipeline.

PNG sheet + atlas metadata.

Instant downloads ready for Unity, Godot, Phaser, and more.

Unity

Generate Sprite Atlas data and Animator clips from frame names, ready for state machines.

Unity spritesheet export

Godot

Import JSON into AnimatedSprite2D or SpriteFrames with per-frame duration and pivot support.

Godot AnimatedSprite2D workflow

GameMaker

Turn exported frames into Sprites and Sequences without reordering, renaming, or slicing manually.

GameMaker sprite sequences

Phaser

Load the texture atlas and reference frame keys directly in your animations or Arcade Physics scenes.

Phaser texture atlas setup

Astrocade

Convert packed frames to Astrocade-ready strips with consistent indexes for your cartridge builds.

Astrocade sprite workflow

RPG Maker

Export character sheets and JSON you can map to RPG Maker's character sets without reformatting tiles.

RPG Maker sprite setup

FPS per move

Set unique frame rates for idle, run, jump, or attack so each move feels right. Adjust numbers or drag sliders and the preview updates instantly.

Tune frame timing per animation in seconds.

Preview changes without re-exporting.

Loop start & end

Define the exact frames that loop so gameplay transitions stay smooth. Hold intro frames, skip tail noise, and lock on-beat cycles.

Set loop in/out points per direction.

Export metadata with loop hints intact.

Reusable presets

Save timing, loops, and export rules once and share them across characters so the whole team ships faster.

Create presets for genres or game modes.

Version settings and roll them out effortlessly.

Idle — Breathing idle loop.Download idle spritesheet

Walk — Walking cycle.Download walk spritesheet

Run — Running animation.Download run spritesheet

No manual slicing or PSD cleanup.

Frame names stay consistent between exports.

Reusable presets keep every sheet aligned.

Re-export with new art—layouts stay intact.

Consistent character proportions across every animation.

Lighting and color grading stay locked to your concept art.

Animation pivots and baselines match so swaps are seamless.

Versioned exports make QA and iteration safer for the team.

What files do I get?

Every export includes a PNG spritesheet plus a atlas file with frame data. You can also grab individual frames from the ZIP.

Can I use these in commercial games?

Yes. The spritesheets you generate are yours to ship. Use them in prototypes, early access builds, or full releases.

How fast is the generator?

Most spritesheets render in seconds. Higher-resolution art and long custom loops can take a little longer, but the queue runs continuously.

Does it work with my engine?

Yes. Load the spritesheet and atlas in Unity, Godot, GameMaker, Phaser, Astrocade, or RPG Maker without reformatting. Works in virtually any engine.

Can teammates collaborate?

Share presets, reuse naming rules, and keep exports versioned so everyone builds on the same spritesheets.

How much does it cost?

AutoSprite starts free. When you need more exports, check the pricing plans for simple monthly or credit-based options.

Does AutoSprite maintain character consistency across animations?

Yes. AutoSprite preserves your character's exact design, proportions, colors, and details across every animation frame, whether it's an idle loop, walk cycle, run, jump, or attack sequence.

Try AutoSprite freeExplore plans