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Top 100 AI GitHub activity AI categories AI Compare Saved AI tools Learn about AI Categories Free Android apps Free desktop apps Collections Newly added Underrated this week Technology stacks Tags Licenses Compare tools About AltStack Advertise

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AI TOOLS, WITH CLEAR PRICING

Search and research

Search by tool name or what you want to do. Try free options before paying for a premium plan.

Freemium = a free plan with paid upgrades. Free trials expire. Check each tool’s pricing evidence and usage costs.

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Provider-checked pricingHas a source repositoryOpen software collection

23 matching tools for Search and research

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AnythingLLM product preview

AnythingLLM

Search and research

Freemium

Ask AI questions about your documents and files.

Provider-checked pricing

View details Visit website

Scira product preview

Scira

Search and research

Freemium

Search the web with AI and see the sources behind answers.

Provider-checked pricing

View details Visit website

Perplexity AI

Learning and study

Pricing not checked

Get help studying, taking notes, and understanding a topic.

Check current pricing

View details Visit website

Ask an AI

Search and research

Free

Listed for search and research. Open the tool website to see its current features.

Directory-reported pricing

ChatGPT Atlas

Search and research

Free

Find information and explore a question.

Directory-reported pricing

Comet by Perplexity

Search and research

Free

Find information and explore a question.

Directory-reported pricing

DorkGPT

Search and research

Free

Find information and explore a question.

Directory-reported pricing

FastGPT product preview

FastGPT

Search and research

Pricing not checked

Build powerful AI knowledge bases with ease.

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View details Visit website

Genspark AI Browser

Search and research

Free

Find information and explore a question.

Directory-reported pricing

Khoj product preview

Khoj

Search and research

Free

AI second brain for research, automation, and personal agents.

Provider-checked pricing

View details Visit website

Liner AI

Learning and study

Free

Get help studying, taking notes, and understanding a topic.

Directory-reported pricing

MaxKB product preview

MaxKB

Search and research

Pricing not checked

AI assistant that enhances enterprise knowledge management.

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View details Visit website

Microsoft Bing

Search and research

Free

Find information and explore a question.

Directory-reported pricing

Morphic product preview

Morphic

Search and research

Pricing not checked

AI-powered answer engine with dynamic interface generation.

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Onyx product preview

Onyx

Search and research

Pricing not checked

Unified AI-powered enterprise search across company data.

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View details Visit website

Open-Notebook product preview

Open-Notebook

Search and research

Pricing not checked

AI-powered research notebook with full privacy control.

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View details Visit website

Orama product preview

Orama

Search and research

Pricing not checked

Full-text & vector search at the edge.

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Pipeshub

Search and research

Pricing not checked

Enterprise workplace AI with data you own and control.

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Scite.ai

Search and research

Paid

Find information and explore a question.

Directory-reported pricing

SearchGPT

Search and research

Free

Find information and explore a question.

Directory-reported pricing

Semantic Scholar

Search and research

Free

Find information and explore a question.

Directory-reported pricing

SurfSense product preview

SurfSense

Search and research

Pricing not checked

Privacy-first knowledge base with any AI model you choose.

Check current pricing

View details Visit website

Swirl Search product preview

Swirl Search

Search and research

Pricing not checked

Get instant answers from your company knowledge.

Check current pricing

View details Visit website

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Catalog information recorded 14 Oct 2026. Pricing marked “directory-reported” is not provider-verified. Product names and logos belong to their owners. Listings are a starting point for research.

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