Hey Product Hunt! I'm the maker of ArtCanvas. I built it after a frustrating evening: I just wanted to collage a few shapes and export a transparent PNG, but every tool wanted an install, an account, or a subscription first. So I built the opposite. **The entire app is a single HTML file** — no install, no signup, no build step. Download it, double-click, and it works, even offline. What's inside: - 8 geometric shapes + freeform + brush, with full transform controls - Cookie-cutter cutting: use any shape as a mold to punch holes through the shapes below — real cutouts, not masks - Artistic text: 7 fonts × 6 effects (outline, neon, emboss, sticker…), editable in place - Fills: solid, gradient, your own images, AI-generated patterns - AI that works offline: demo mode generates patterns locally with zero config; connect any OpenAI-images-compatible API for real models (your key never leaves the browser) - Transparent background export: PNG/WebP keep the alpha channel, JPEG falls back to white The whole app is 6,225 lines of vanilla JS in 14 files — zero dependencies, nothing to break or update. It's open source: https://github.com/smarkfire/huahua Free for personal learning and research; for commercial use, contact me (WeChat: aichuandao). Two questions for you: what shape or cutting feature would you want next? And how does it feel performance-wise on your machine?

ArtCanvas

Punch shapes through shapes, in a zero-install design app

Punch shapes through shapes, in a zero-install design app