I Searched for a Skitch Alternative, Then Built One in a Day — A PWA Image Annotation Tool

I just wanted to draw one arrow on a screenshot and paste it into a chat. That's it. Why does it take 30 seconds? Since Skitch was effectively discontinued, every alternative I tried hit me with "Please sign in," "Choose a plan," or "Download required." No. That's not what I need. So I stopped searching and built one. Pure Mark Annotate — Try it now (completely free) No install. No login. No account. Open the browser, drop an image, draw an arrow. Done. What It Does (30-Second Overview) Action How Load an image Drag & drop / Ctrl+V paste / file picker Annotate Arrows, text, rectangles, highlights, mosaic, numbered circles Blur faces Auto-detect and one-click mosaic Save iPhone → Share Sheet / Desktop → PNG download Works on both desktop and mobile. English and Japanese UI. I obsessed over getting that "Skitch-style arrow" right — if you remember that feel, you'll know it when you see it. Two Weeks of Going Nowhere I decided to build this in early 2026. The first plan was Flutter. Ship