ShotDock - Full page screenshots that never leave your browser

Hi Product Hunt 👋 I'm Rakib, and I build small Chrome tools at Degird. ShotDock started with an annoyance. I needed a full-page screenshot of an internal dashboard, installed the first extension I found, and watched it upload my dashboard to a rendering server so it could hand the image back to me. That is a completely ordinary way for these tools to work, and I found it hard to accept. So ShotDock has no server. Capture, stitching and PNG/JPG encoding all happen inside your browser. There is no account, no upload step, no watermark, and no ShotDock backend for a screenshot to travel to. The part I'd most like feedback on is what makes full-page screenshots hard rather than what makes them private: 🔸 Sticky headers. A fixed header re-renders into every scroll frame, which is why naive full-page screenshots have a header marching down them like a staircase. ShotDock keeps it in the first section, where it genuinely belongs, and hides it for the rest — via visibility, so nothing reflows underneath. 🔸 Seams. Sections overlap on purpose, and the stitcher aligns on where the page actually landed after each scroll rather than where it was asked to go — browsers clamp scrolls, lazy content shifts layout mid-capture, and scroll-snap lands where it likes. Each frame is drawn starting exactly where the previous one stopped, so rounding can't open a gap. There's a test that enforces it. 🔸 Restoring the page. Everything ShotDock touches is reverted in a finally block, and if the browser suspends the extension mid-capture the page restores itself on a watchdog timer. Your scroll position comes back too. 🔸 Really long pages. Live progress you can pause, resume or cancel — and output past the browser's canvas limit splits into numbered parts instead of failing outright. One design decision worth calling out: ShotDock requests **no host permissions at all**. It never asks to "read your data on all websites". Chrome grants access to a single tab at the moment you click capture, and that access lapses when you navigate away. It's free, MIT licensed, Chrome 116+, and there is no paid tier planned for what 1.0 does. What's next, in order: capture history, then annotation/crop/blur, then PDF and collections. None of that is in today's build. I'll be here all day. Throw your ugliest page at it — an infinite feed, a dashboard with four fixed panels, a site with a cookie banner that won't die — and tell me what breaks. Bug reports are the most useful thing you can leave me. 🙏