The best Sider alternatives
4 tools that do a similar job to Sider. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.
You're replacing
SiderA sidebar AI extension for chatting with pages, PDFs and images using multiple models.
- 1
HARPA AI
AI tool · Freemium
A Chrome extension combining AI chat with web automation, page monitoring and custom commands.
Best for: Automating repetitive browser tasks; Monitoring page changes
- 2
MaxAI
AI tool · Freemium
A browser extension for one-click AI actions on selected text, emails and pages.
Best for: Rewriting selected text; Email replies in the browser
- 3
Merlin
AI tool · Freemium
A browser extension giving access to several AI models on any page, for summarising, writing and chat.
Best for: Summarising pages and YouTube videos; Multi-model chat in the browser
- 4
Monica
AI tool · Freemium
An AI assistant extension for chat, reading, writing and translation on any website.
Best for: Translating and summarising web content; Quick writing help
How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to Sider. We don't take payment for placement.