Heurio - Website Review, Heuristic Evaluation & Vibe Coding Feedback

Fastest website review, bug report and heuristic evaluation tool for designers and devs.

Pin comments directly on any live website or web app - no separate reporting tool, no exporting screenshots to annotate by hand elsewhere. Used by teams at HubSpot and 40,000+ other users. HOW IT WORKS 1. Turn on the Heurio extension on the website. 2. Click any element and pin a comment - add a note, a suggestion, a severity level, and (optionally) a heuristic guideline reference (Nielsen, WCAG, and more). You choose what to flag, one click at a time - Heurio doesn't scan the page for you automatically. 3. Invite others to the project, or share the project link. USE CASES 1. For UX/UI Designers Leave structured feedback on a live build, track what's fixed, and compare implementation against your Figma design. 2. For Vibe Coders Building an app with AI? Pin comments straight on the live preview as you build, then use the copy-as-prompt button so your AI agent knows exactly what to fix - and share the project link so anyone helping you build can leave feedback too. 3. For Accessibility & UX Researchers Run WCAG 2.2 accessibility audits and heuristic evaluations against built-in guidelines - every comment stays pinned to the exact spot on the live site, not buried in a separate doc. 4. For Frontend Developers Get bug reports pinned to the exact element and page - no more "the button is broken" without knowing which button. 5. For Framer, Webflow & WordPress Developers Speed up client approval rounds with comments clients can leave directly on the live site. 6. For Copywriters & Marketers Suggest copy changes directly on the live page, in context - not in a separate doc that goes out of sync. 7. For Creative Minds Run real-time, shared reviews during a brainstorm or workshop, with everyone commenting on the same live site at once. FEATURES - Fast & Effortless Collaboration Comments, not just markup Every comment ("heurio") carries a note, a suggestion, a severity level, and an optional heuristic reference - not just a pin on a screenshot. Copy as prompt Turn any comment into a ready-to-paste prompt with one click — hand it straight to your AI coding agent, no manual rewriting needed. Each prompt includes the page URL, the exact DOM selector of the affected element, your note and suggestion, the relevant heuristic guideline and rule, a screenshot, and browser/device context - everything your AI agent needs to find the right spot and fix it correctly the first time. Collaborative, shared commenting Your whole team (or your client) sees the same comments on the same live site - no exporting, no version confusion. Color-coded severity See at a glance which issues are critical and which are cosmetic, without opening each one. Built-in heuristic guidelines Nielsen's 10 Usability Heuristics, Dieter Rams' 10 Principles, and more - lock a rule and go through your site systematically, one guideline at a time. This is a guided manual review, not an automated scan. Best on a live, already-deployed site. 3-day free trial, no credit card required.