Kagi Search records 4,647,605 monthly visits with +3.2% month-over-month growth and Free Trial, Paid pricing. Side Reader records 355 monthly visits with -36.5% growth and Freemium pricing.
A paid, ad-free search engine that answers to its users
Read and chat with PDFs right beside ChatGPT, Claude and DeepSeek.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | kagi.com | side-reader.com |
| Pricing Model | Free Trial, Paid | Freemium |
| Monthly Visits | 4.65M (4,647,605) | 355 (355) |
| MoM Traffic Delta | +145.18K (+3.2%) | -204 (-36.5%) |
| Primary Market & Share | 🇺🇸 United States (56.4%) | 🇻🇳 Vietnam (100%) |
| Direct Visits / mo | 4.38M | 149 |
| User Rating | 4.7 | 2.4 |
| Supported Platforms | Website | Website |
A paid, ad-free search engine that answers to its users
Subscriptions replace advertising, so there are no sponsored results, affiliate links, or data sales influencing what you see.
Rank any website up or down, pin favorites, or block domains entirely so your results match your own standards.
Append a question mark to get an AI answer above the results, or chat with the Assistant for deeper tasks with sources included.
Restrict searches to categories like forums or news, or jump straight into a specific site's own search with shortcuts.
Read and chat with PDFs right beside ChatGPT, Claude and DeepSeek.
PDFs render directly in the sidebar next to the chat, so your document and the AI conversation are visible at the same time.
Summarize a whole document, translate it, or have passages explained in simpler terms using the AI you are already signed into.
Built-in buttons cover the common actions, and you can edit their prompts to make the AI respond in the format and tone you need.
Ask about charts, scans or regions that cannot be selected by taking a screenshot question instead.
SpecialistDelivers top-tier reasoning and web search capabilities, but lacks Kagi's dedicated focus on ad-free search results.
SpecialistDelivers top-tier reasoning and web search capabilities, but lacks Kagi's dedicated focus on ad-free search results.
SpecialistExcels at complex analysis and document interpretation, but lacks Kagi's core web search engine capabilities.
SpecialistExcels at complex analysis and document interpretation, but lacks Kagi's core web search engine capabilities.
Stronger conversational AI answers and live web citations, but lacks Kagi's pure ad-free traditional search results.
Stronger conversational AI answers and live web citations, but lacks Kagi's pure ad-free traditional search results.
Provides advanced agentic research and multi-source synthesis, though it has a busier interface than Kagi.
Provides advanced agentic research and multi-source synthesis, though it has a busier interface than Kagi.
SpecialistSpecializes in searching peer-reviewed scientific literature with citations rather than general web search.
SpecialistSpecializes in searching peer-reviewed scientific literature with citations rather than general web search.
AI research platform for reading, understanding and writing scientific papers
AI research platform for reading, understanding and writing scientific papers
A free, AI-powered PDF editor for every device
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research
Bilingual AI translation for websites, documents, video and images
Bilingual AI translation for websites, documents, video and images
Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents
