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Best Merlin Alternatives (2026) — Ranked by Real Data | Unfragile

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Best Alternatives to Merlin

20 alternatives ranked by real usage data. Merlin scores 15/100 — 20 tools score higher.

OriginalMerlin

ChatGPT Plus extension on all websites.

15

20 alternatives

18 free options

20 score higher

GitHub Copilot59/100Higher rated

AI-powered code completion from GitHub Copilot in browser

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Vue.js DevTools57/100FreeHigher rated

Official Vue.js component inspector and state debugger.

React Developer Tools57/100FreeHigher rated

Official React component inspector and performance profiler.

Lighthouse57/100FreeHigher rated

Google's website performance and accessibility auditor.

LanguageTool57/100FreeHigher rated

Open-source multilingual grammar checker for 30+ languages.

Remote - SSH56/100FreeHigher rated

Full VS Code development on remote machines over SSH.

Wordtune55/100FreeHigher rated

AI sentence rewriter for clarity and tone improvement.

Wappalyzer55/100FreeHigher rated

Website technology stack detector for 1,700+ technologies.

UseChatGPT.AI55/100FreeHigher rated

AI writing assistant on every website without copy-pasting.

Readwise Reader55/100FreeHigher rated

Read-it-later app with AI summarization and Q&A.

QuillBot55/100FreeHigher rated

AI paraphraser with seven rewriting modes.

Perplexity Extension55/100FreeHigher rated

Perplexity AI answers alongside any browser search.

Monica55/100FreeHigher rated

All-in-one AI assistant extension with GPT-4 and Claude.

MaxAI55/100FreeHigher rated

One-click AI assistant for any webpage with multi-model support.

Immersive Translate55/100FreeHigher rated

Bilingual side-by-side webpage translation extension.

Harpa AI55/100FreeHigher rated

AI web automation extension with monitoring and extraction.

Sider54/100FreeHigher rated

AI sidebar with ChatGPT and Claude for browsing assistance.

Liner54/100FreeHigher rated

AI search and web highlighter with cited answers.

Glasp54/100FreeHigher rated

Social web highlighter with AI summarization.

TeamSmart AI50/100Higher rated

Boost productivity with customizable AI assistants in a Chrome...

Best for: Mid-market teams and enterprises seeking to automate customer support, content workflows, or code assistance at scale without building custom integrations.

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