Sider
ChatGPT + Claude sidebar for any browser tab — chat about the page, summarise, translate, draw.
Sider is a chatGPT + Claude sidebar for any browser tab — chat about the page, summarise, translate, draw. Supports multiple AI models including ChatGPT, Claude, and Gemini within a single sidebar.
About Sider
Sider is a browser-extension AI sidebar that lets you chat about the current tab, summarize it, translate it, and generate images. It puts ChatGPT, Claude, and Gemini in one panel next to any page.
Where it differs is breadth in a single sidebar: multiple models to choose from, page-aware actions like summarizing, translating, and chatting about the current tab's content, plus AI image generation alongside the text tools.
It fits people who want quick AI help layered over whatever they are reading without switching apps, on a free daily allowance. It is a weaker fit for heavy use: the free tier limits messages and access to advanced models, and it is a browser extension with no standalone desktop or mobile app.
Against single-model assistants, Sider's angle is putting several models and page-aware actions in one browser sidebar.
Sources: sider.ai, this listing
What it does well
- Supports multiple AI models including ChatGPT, Claude, and Gemini within a single sidebar.
- Provides page-aware features such as summarization, translation, and chat about the current tab content.
- Includes AI image generation capabilities alongside text-based tools.
- Available as a freemium browser extension with a free tier of daily usage.
Where it falls short
- Free tier has usage limits on messages and access to advanced models.
- Operates as a browser extension and does not provide a standalone desktop or mobile application.
Tagged
- Supports Claude
- Supports GPT
- Supports Gemini
- Web-based
- Free
- Freemium
Compared with similar things
Picked by shared tags inside the Browser Extensions.
- 01Freemium →OpenRouter
Unified API gateway for 200+ LLMs across providers with usage-based billing on a single account.
- 02Freemium →n8n
Open-source workflow automation with native LLM nodes — self-host on your own infrastructure.
- 03Freemium →LangSmith
Observability and evaluation for LLM apps — traces, datasets, A/B testing, and feedback collection.
- 04Freemium →ChatHub
Use GPT, Claude, Gemini, Bing, and more side-by-side in a single chat interface.
- 05Freemium →Monica
All-in-one AI assistant browser extension — chat, summarise, rewrite, translate, and answer on any site.
- 06Freemium →LangChain
Most-used framework for building LLM applications with retrieval, agents, and chains.
Related reading
- How to Validate Your AI App Idea Before You Build It
The expensive mistake in the vibe-coding era isn't building the app — it's building the wrong one. You validate an AI app idea by talking to about eight people in your target market before you build, and listening for the single capability they all wish existed. That's your wedge. Higgsfield's founder did exactly that on the way to a ~$200M run-rate.
Read guide → - How to Launch Your AI App on Product Hunt
Launch on Product Hunt by preparing for a few weeks: build genuine account activity, line up your assets and a supporter list, and ship at 12:01 AM Pacific (the daily reset) on a weekday. Reply to every comment all day, never ask for upvotes (say 'check it out'), and keep working the week after — that's where most of the lasting value is.
Read guide → - How to Get Your AI App Cited by ChatGPT and Perplexity
To get cited by ChatGPT and Perplexity, be the clearest answer in several places at once. Publish answer-first pages with extractable facts, get listed on directories and review sites the engines crawl, and build consistent mentions across Reddit, YouTube, and your own site. Perplexity tends to favour recent content; ChatGPT appears to weight agreement across sources.
Read guide →
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</a>Frequently asked questions
- What is Sider?
- Sider is a chatGPT + Claude sidebar for any browser tab — chat about the page, summarise, translate, draw.
- Is Sider free?
- Sider offers a free tier and paid plans with higher limits or premium features.
- What platforms does Sider support?
- Sider runs on web.
- What category does Sider belong to?
- Sider is in the Browser Extensions category — AI-powered Chrome, Arc, Edge, Firefox, and Safari extensions — overlays, sidebars, content augmentation.
- What are the downsides of Sider?
- Free tier has usage limits on messages and access to advanced models. Operates as a browser extension and does not provide a standalone desktop or mobile application.