1. Monica AI
AI copilot for chat, translation and writing on any site.
Why it replaces AI Assistant: Covers similar ground in the AI category: AI copilot for chat, translation and writing on any site.
Best AI Assistant Alternatives in 2026
AI Assistant is a strong option, but it is not the right fit for everyone. Below are 10 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About AI Assistant
AI Assistant Chrome Extension
Free
Full reviewComparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| AI Assistant (original) | — | — | Free | AI Assistant Chrome Extension |
| Monica AI | 4.9 | 3M+ | Freemium | People who want templates and translation alongside a general AI chat panel. |
| Keplr | — | — | Free | Keplr is a browser extension wallet for the Inter blockchain ecosystem. |
| Merlin AI | 4.8 | 900K+ | Freemium | Generalists who want a single AI sidebar instead of five separate AI extensions. |
| Clearly Reader - Your AI Reading Assistant | — | — | Free | A browser extension with reader mode for optimal experience. Features copy, translate, speech, and PDF and Markdown export. |
| NextAI Translator | — | — | Free | NextAI-Translator is a browser extension that uses the ChatGPT API for translation. |
| Passwordstate | — | — | Free | Passwordstate for Chrome is a form filler extension that obtains credentials from Passwordstate. |
| Dark Mode - Dark Theme for Chrome | — | — | Free | A classic dark theme for every website. Use dark mode for the night and daily browsing to care for your eyes. |
| Dark Reader - Dark Mode for Chrome | — | — | Free | Switch on dark mode for Chrome. Look after your eyes, and use a dark theme for night and daily browsing. |
| WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease | 4.5 | 6M+ | Free | Users who need a free all-in-one PDF editor, converter and signer in the browser. |
| AnyDoc Translator - Translate Web and PDF | — | — | Free | The ultimate AI translator for web, files, ebooks, academic papers, images, and text |
AI Assistant alternatives in detail
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2. Keplr
Keplr is a browser extension wallet for the Inter blockchain ecosystem.
Why it replaces AI Assistant: Covers similar ground in the AI category: Keplr is a browser extension wallet for the Inter blockchain ecosystem.
3. Merlin AI
One AI assistant for summarising, writing and answering on any page.
Why it replaces AI Assistant: Covers similar ground in the AI category: One AI assistant for summarising, writing and answering on any page.
4. Clearly Reader - Your AI Reading Assistant
A browser extension with reader mode for optimal experience. Features copy, translate, speech, and PDF and Markdown export.
Why it replaces AI Assistant: Covers similar ground in the AI category: A browser extension with reader mode for optimal experience. Features copy, translate, speech, and PDF and Markdown export.
5. NextAI Translator
NextAI-Translator is a browser extension that uses the ChatGPT API for translation.
Why it replaces AI Assistant: Covers similar ground in the AI category: NextAI-Translator is a browser extension that uses the ChatGPT API for translation.
6. Passwordstate
Passwordstate for Chrome is a form filler extension that obtains credentials from Passwordstate.
Why it replaces AI Assistant: Covers similar ground in the AI category: Passwordstate for Chrome is a form filler extension that obtains credentials from Passwordstate.
7. Dark Mode - Dark Theme for Chrome
A classic dark theme for every website. Use dark mode for the night and daily browsing to care for your eyes.
Why it replaces AI Assistant: Covers similar ground in the AI category: A classic dark theme for every website. Use dark mode for the night and daily browsing to care for your eyes.
8. Dark Reader - Dark Mode for Chrome
Switch on dark mode for Chrome. Look after your eyes, and use a dark theme for night and daily browsing.
Why it replaces AI Assistant: Covers similar ground in the AI category: Switch on dark mode for Chrome. Look after your eyes, and use a dark theme for night and daily browsing.
9. WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease
Easy-to-use PDF tools to view, edit, convert, fill, e-sign PDF files, and more in your browser.
Why it replaces AI Assistant: Another popular AI extension: Easy-to-use PDF tools to view, edit, convert, fill, e-sign PDF files, and more in your browser.
10. AnyDoc Translator - Translate Web and PDF
The ultimate AI translator for web, files, ebooks, academic papers, images, and text
Why it replaces AI Assistant: Another popular AI extension: The ultimate AI translator for web, files, ebooks, academic papers, images, and text
Compare AI Assistant head-to-head
Direct comparisons with the extensions people weigh against it.
Monica vs Merlin AITwo all-in-one AI sidebars compared on model access, free quota and page context.Monica vs PerplexityA general AI assistant against a cited, search-first answer engine.Merlin AI vs PerplexityBoth are ai extensions people shortlist together for ai — see how ratings, install base, pricing and day-to-day use differ.All comparisonsThe full compare hub, grouped by category.
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Frequently asked questions
What is the best alternative to AI Assistant?
Monica AI is the closest match. Covers similar ground in the AI category: AI copilot for chat, translation and writing on any site.
Is there a free alternative to AI Assistant?
Yes — Keplr, Clearly Reader - Your AI Reading Assistant, NextAI Translator are free.