WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease is a strong option, but it is not the right fit for everyone. Below are 6 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
WPS Office PDF lets you read, edit, convert, fill and sign PDF documents directly in Chrome. It supports annotations, OCR, AI chat with your PDFs and seamless conversion between PDF and Word, with free basic editing tools.
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease (original) | 4.5 | 6M+ | Free | Users who need a free all-in-one PDF editor, converter and signer in the browser. |
| Monica AI | 4.9 | 3M+ | Freemium | People who want templates and translation alongside a general AI chat panel. |
| Merlin AI | 4.8 | 900K+ | Freemium | Generalists who want a single AI sidebar instead of five separate AI extensions. |
| Perplexity | 3.8 | 400K+ | Freemium | Researchers and analysts who need answers they can trace back to a source. |
| Gmail reverse conversation | 4.4 | 300K+ | Free | |
| Sidebar: ChatGPT, Bookmarks, GPT-4o | Meomni | 4.9 | 50K+ | Free | |
| Linguix: Grammar Checker and AI Writing App | 4.5 | 20K+ | Freemium |
AI copilot for chat, translation and writing on any site.
Why it replaces WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease: Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
One AI assistant for summarising, writing and answering on any page.
Why it replaces WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease: Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
Answer engine with cited sources built into the browser.
Why it replaces WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease: Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
The add-on reverse emails in conversation view.
Why it replaces WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease: Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
Ultimate Sidebar ChatGPT Assistant, Bookmarks with AI, Calendar and Tasks
Why it replaces WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease: Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
Improve your writing and create compelling content with Linguix grammar checker & rewriter.
Why it replaces WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease: Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
Direct comparisons with the extensions people weigh against it.
Monica AI is the closest match. Another AI extension worth comparing against WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease.
Yes — Gmail reverse conversation, Sidebar: ChatGPT, Bookmarks, GPT-4o | Meomni are free.
Common reasons are pricing, missing sync or team features, and specific limitations: Requests access to the sites you visit; May slightly increase memory usage.
