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Best alternatives to MarkUp: Annotate webpages, prompt AI agents (2026)

10 Chrome extensions that do a similar job to MarkUp, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.

MarkUp: Annotate webpages, prompt AI agents today

≈1K users4.2★ from 5 ratingsUpdated 3 months ago5 permissions

MarkUp alternatives, compared

  1. 1

    Markagent: UI/Web Feedback Annotator for AI Agents

    Vibe coding feedback. Annotate webpages, screenshot & export agent prompts for Claude Code, Cursor, Codex, OpenCode, Antigravity.

    774 users5.0★ from 8 ratingsUpdated 3 weeks ago4 permissions
    • A similar number of users to MarkUp
    • Asks for fewer permissions (4 vs 5)
  2. 2

    Open Prompt Manager - for AI Agents & Assistants

    Save, organize and reuse your best AI prompts across ChatGPT, Claude, Gemini, Grok and more. Free and open source.

    ≈4K users4.7★ from 33 ratingsUpdated 4 weeks ago6 permissions
    • About 4.0× more users than MarkUp
    • Asks for more permissions (6 vs 5)
    • Listed under Tools
  3. 3

    CopyMarkdown - Copy Webpages & AI Chats as Markdown

    Convert any webpage or AI chat conversation to clean Markdown with one click. Runs entirely in your browser.

    764 users4.5★ from 2 ratingsUpdated 5 months ago5 permissions
    • A similar number of users to MarkUp
    • Updated less recently
  4. 4

    Element Select - AI Agent Annotation Tool

    Annotate web elements and generate structured feedback for AI coding agents

    199 users5.0★ from 1 ratingUpdated 7 months ago4 permissions
    • About 5.0× fewer users than MarkUp
    • Updated less recently
    • Asks for fewer permissions (4 vs 5)
  5. 5

    Right-Click Prompt (RCP): AI Prompt Manager

    Save your best AI prompts and access them in two clicks. Sync across devices. Distribute prompt libraries to your whole team.

    ≈2K users4.6★ from 27 ratingsUpdated 5 weeks ago7 permissions
    • About 2.0× more users than MarkUp
    • Asks for more permissions (7 vs 5)
    • Listed under Tools
  6. 6

    AI Prompt Genius

    Craft a custom library of AI Prompts

    ≈100K users3.3★ from 161 ratingsUpdated 3 months ago5 permissions
    • About 100× more users than MarkUp
    • Listed under Workflow & Planning
  7. 7

    PromptCard - Image to Prompt AI

    Right-click any image and turn it into detailed prompt analysis in English, Chinese, Japanese, and JSON.

    ≈50K users4.5★ from 148 ratingsUpdated 3 weeks ago7 permissions
    • About 50× more users than MarkUp
    • Asks for more permissions (7 vs 5)
    • Listed under Art & Design
  8. 8

    Lunabot - AI on any webpages

    Chat with a powerful AI assistant and enjoy a great experience, anytime and anywhere!

    ≈2K users4.2★ from 44 ratingsUpdated 3 weeks ago5 permissions
    • About 2.0× more users than MarkUp
    • Listed under Workflow & Planning
  9. 9

    AI Agent

    Use AI Agent for instant solutions. Converse with AI Agent assistant, craft content and generate images via smart chatbot.

    ≈40K users4.0★ from 40 ratingsUpdated 4 months ago9 permissions
    • About 40× more users than MarkUp
    • Asks for more permissions (9 vs 5)
    • Listed under Tools
  10. 10

    Web to MCP: Import any website components to Cursor or Claude Code

    A Chrome extension that captures website components and sends them to AI coding assistants like Cursor, Claude Code, Codex, etc

    ≈5K users3.7★ from 11 ratingsUpdated 13 months ago2 permissions
    • About 5.0× more users than MarkUp
    • Updated less recently
    • Asks for fewer permissions (2 vs 5)

MarkUp alternatives: questions

What is the best alternative to MarkUp?

By users, the most popular alternative is AI Prompt Genius with ≈100K users and a 3.3-star rating. The closest match by what it does is Markagent: UI/Web Feedback Annotator for AI Agents.

Which MarkUp alternative has the best rating?

PromptCard - Image to Prompt AI has the highest rating of these alternatives with 50+ ratings: 4.5 out of 5 from 148 ratings.

Is there a MarkUp alternative that asks for fewer permissions?

Web to MCP: Import any website components to Cursor or Claude Code asks for 2 permissions, against 5 for MarkUp.

How many alternatives to MarkUp are there?

We list 10 close alternatives to MarkUp on the Chrome Web Store, picked by what they do and ranked by how close they are.

Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.

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