Uploads for common prototype formats
ProtoNote accepts HTML, Markdown, images, and PDFs, so you can share a build, mockup, screenshot, or document without converting it into a different review format.
ProtoNote
Freemium
ProtoNote is a private review tool for sharing prototypes and AI-generated artifacts and collecting pinned feedback directly on the page. It supports uploads of HTML, Markdown, images, and PDFs, and can also be used from Claude as a connector.
What is ProtoNote?
ProtoNote is a web-based review tool for sharing prototypes and AI-built artifacts with a team and collecting notes directly on the page. It supports HTML, Markdown, images, and PDFs, and it is designed to let reviewers leave feedback without signing up.
The product centers on a hosted sharing link: you upload or create a file, send the link, and receive notes pinned to the exact spot on the exact version. ProtoNote also works as a Claude connector, so users can create a shareable review link from within Claude and pull open feedback back into the chat to make revisions.
What can ProtoNote do?
Pinned notes on the page
Reviewers leave notes directly on the shared page, with comments anchored to the exact spot being discussed instead of sitting in a separate thread.
Version-aware feedback
Notes stay attached to the version they were made on, so when you publish a new version, earlier feedback remains tied to the prior revision.
Multiple files in one project
You can upload several files together and have them organized as pages of one project, which is useful when a review spans more than one screen or artifact.
Hosted sharing with preview
ProtoNote hosts the work for you and presents it like a product page rather than an attachment, including a real preview when the link is shared in places like Slack.
Claude connector workflow
ProtoNote can be added as a Claude connector, letting Claude upload a created artifact, return a share link, and pull open notes back into the chat for revisions.
Use Cases
“Early product mockups and landing page feedback”
Share a first pass at a page or prototype and let teammates comment on specific areas such as copy, layout, or call-to-action placement.
“AI-generated artifacts from Claude”
Use ProtoNote as the handoff point for work created in Claude, turning chat output into a link that others can review without leaving the browser.
“Screenshot and design review”
Upload images or screenshots when you want feedback on visual details, then collect notes pinned to the relevant part of the image.
“Document or PDF review”
Share PDFs or Markdown-based drafts when the goal is structured feedback on content instead of an interactive app or website.
“Iterative revisions with version history”
Publish a new version after making changes and keep earlier notes attached to the previous version, which helps teams compare feedback across rounds.
Frequently Asked Questions
What does ProtoNote do?
ProtoNote lets you upload or create a prototype or artifact, share a private review link, and collect pinned notes directly on the page.
Do reviewers need an account?
No. People you share with can open the prototype and leave notes without creating an account.
What file types can I upload?
The pricing and home pages list HTML, Markdown, images, and PDFs.
How does the Claude connector work?
ProtoNote can be added to Claude as a custom connector. Once connected, you can ask Claude to make something into a ProtoNote, return a share link, add a new version, or pull open notes back into Claude to apply changes.
What happens if I go over the free limit?
Free accounts can keep three active prototypes. If you need more, Pro unlocks unlimited prototypes; archived prototypes do not count toward the active limit.
Quick Facts
- Category
- Productivity / Developer Tool
- Primary use
- Prototype and artifact review
- Supported formats
- HTML, Markdown, images, PDFs
- Access model
- Private by default; link-based sharing
- Reviewer account required
- No
- Claude integration
- Custom connector via Claude on web, desktop, and mobile
ProtoNote Traffic Analysis
Traffic data is for reference only.
- Domain Rating
- 1
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