Prototypes that feel shipped.
Drop in screens, draw hotspots, collect threaded feedback, and ship a link your stakeholders will actually click through. 100% free.
Set up your first workspace
Invite teammates, connect a repo, and pick a starter template. You can change any of this later.
"The micro-interaction on this toggle feels incredibly crisp. Can we ship this version?"
A reviewer, not a deck.
Every tool you need to move from raw concepts to final approval without leaving the canvas.
Automated context summaries
The AI synthesizes hundreds of comments into actionable bullet points.
The visual weight of the hero section is the primary concern. Increasing whitespace by 20% will improve readability.
Version control
Iterate with absolute confidence.
Threaded context
Is the kerning too tight here?
Agreed. Let's loosen it by +2%.
Spatial precision
One-click access
Fluid ingestion
Drop dozens of screens at once. Our engine processes and stacks your designs with deep volumetric hierarchy.
The Methodology
How it works
Upload
Drag screens in. High-fidelity compression handled instantly with zero quality loss.
Get started freeLink
Draw hotspots between screens. Native transitions create realistic, interactive flows.
Get started freeShare
Send one link to the team. Collect threaded comments and feedback in real-time.
Get started freeThe primary CTA on step 2 competes with the illustration.
Copy on “Continue” feels heavy. Something softer?
Empty state for Projects is missing — new users land on a blank canvas.
+1 on the CTA weight. Also, spacing above the header feels tight.
- Reduce CTA visual weight on step 2P1
- Rewrite “Continue” microcopyP2
- Design empty state for ProjectsP3
Twenty comments,
one decision.
Tap Summarise on any screen. Themes, blockers, and clear action items — pulled from the actual thread, never invented.
Private by default
RLS-protected. Your screens are yours.
Signed URLs
Every asset served through short-lived, signed links.
Versioned & scoped
Project access controlled, never leaked across teams.
Questions, answered.
What is PixelPrototypes?+
PixelPrototypes is a free design feedback tool that turns static screen images into clickable prototypes. Link screens with hotspots, collect pinned comments from reviewers, and share one link for approval.
Is PixelPrototypes really free?+
Yes. PixelPrototypes is 100% free, with no paid plans, no billing and no credit card required.
Can reviewers comment without an account?+
Yes, if you allow it. Share links can let anyone with the link view the prototype and leave comments, with an optional password and expiry date.
What file types can I upload?+
PNG, JPG, SVG and WEBP screens. Exports from Figma, Sketch, Photoshop or plain screenshots all work.
Is it a good InVision or Marvel alternative?+
For clickable prototypes from images, hotspot linking and comment-based design reviews, yes. PixelPrototypes focuses on fast feedback and approval rather than design editing or developer handoff.
What does the AI Summary do?+
It reads a screen's comment thread and summarizes it into feedback themes, action items and open questions. It only runs when you click it.
Is my work private?+
Projects are private by default. Only you and invited teammates can see them, images are served through short-lived signed links, and share links can be password-protected.
Ship the right
design, faster.
Free forever for designers and small teams. No credit card, no upsell.