Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate
Key facts
- Vendor
- Sider
- Pricing
- Freemium — Free – $10/mo
- Free tier
- Yes
- Platforms
- Web
- Best for
- Knowledge Workers, Students
- Editor rating
- 4.4 / 5
- Founded
- 2022
- Headquarters
- Singapore
What is Sider?
Sider is a ai chatbots tool from Sider. A browser extension that puts ChatGPT, Claude and Gemini in a sidebar to summarize pages, translate, write and chat with PDFs anywhere on the web.
Sider uses freemium pricing and offers a free tier you can start on without a credit card. Free – $10/mo.
It's best suited to knowledge workers, students and runs on Web.
Standout strengths include multi-model sidebar, page and pdf chat, cross-browser. Worth weighing: credit limits, feature overload.
Sider pricing
Pros
- Multi-model sidebar
- Page and PDF chat
- Cross-browser
Cons
- Credit limits
- Feature overload
Sider vs alternatives
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Frequently asked questions
What is Sider?
A browser extension that puts ChatGPT, Claude and Gemini in a sidebar to summarize pages, translate, write and chat with PDFs anywhere on the web.
How much does Sider cost?
Sider is freemium-priced. It has a free tier. Paid plans start at $10/mo.
Does Sider have a free trial?
Sider offers a free tier rather than a time-limited trial.
What platforms does Sider support?
Sider is available on Web.