Markup.io alternative for AI-made HTML prototypes
Markup.io is a general-purpose annotation tool: people leave comments on websites, images, PDFs and designs. Ollav is specialised: it takes one self-contained HTML file from an AI assistant and adds pinned comments that the assistant can read and act on. Checked November 2026; check each vendor's site for current details.
Who this is for
You generate HTML prototypes with an AI assistant and want teammates to comment on the running page, then have the assistant apply the changes.
Side by side
| Ollav | Markup.io | |
|---|---|---|
| What you review | One HTML file (up to 15 MB) that runs as a page | Websites, images, PDFs and other assets |
| Deploy needed | No: upload, get a link | No for files; a URL for sites |
| Pinned comments | Yes, plus emoji reactions and emoji pins | Yes |
| Reviewers | Signed-in: members or invited guests | Check the vendor's site |
| New version, same link | Yes, earlier comments kept | Check the vendor's site |
| Agents read, reply, resolve and publish a new version | Yes (Claude, ChatGPT, Cursor, Codex via MCP/API) | Not mentioned on the vendor's site |
| Default visibility | Private to your workspace, not indexed | Check the vendor's site |
| Pricing | Free tier, Pro EUR 12/mo, Team EUR 10/seat/mo (min 3 seats) | Check the vendor's site |
When to pick Markup.io instead
- You review mixed material: PDFs, screenshots and live websites, not just HTML.
- You work with external clients and want a tool they may already know.
- The assets are not generated by an agent and nothing needs to flow back into code.
When to pick Ollav instead
- The thing under review is an AI-made HTML page and the agent should handle the feedback.
- You want every version at one link with the comment history kept.
- You prefer feedback that stays inside a workspace, with accountable reviewers.