ChatPDF
ChatGPT
Perplexity.ai
Obsidian
Claude AI
Humata AI
elicit
AI-first notebook by Google, available in the U.S., blends large language models and user-chosen data. Apply for access to explore intelligent insights and enhance your note-taking experience.

Fandom
Miraheze
Editthis
BookStack
EditMe
MyWikis
Everipedia
Wikiful is an online platform that makes it easy to build and share a wiki.

Which is more popular?
Based on our record, NotebookLM seems to be more popular. It has been mentioned 10 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | notebook.google.com | wikiful.com |
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What each product offers, as listed by its team.

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An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
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Walkthroughs and reviews on video.
Google made a new AI note app - NotebookLM review
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Recommendations tracked on public social media and blogs since March 2021.

Gemini Notebook only generates content based on your sources and will not hallucinate or provide false or unrelated information. I cannot overemphasize the importance of this platform while following through with this certification... - Source: dev.to / about 1 month ago
You just need a few summaries occasionally. Standing up Ollama, a model, and an extraction pipeline to summarize five PDFs is overkill. If privacy isn't the constraint, a free web tool does it in seconds — ChatPDF and NotebookLM if you... - Source: dev.to / 3 months ago
Last year I was heavily into Perplexity but for most of 2026 I've actually been using NotebookLM a lot more. Perplexity is still useful for just daily news, but when I want to research, when I want to summarise, when I want to learn...... - Source: dev.to / 4 months ago
Tracking Wikiful since Mar 2021.
When comparing NotebookLM and Wikiful, you can also consider the following products.

Chat with any PDF! Join millions of students, researchers and professionals to instantly answer questions and understand research with AI
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ChatGPT is a powerful, open-source language model.
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Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains...
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A free wikifarm project allowing to keep private wiki and build it up through MediaWiki syntax.
Compare Editthis to NotebookLM or Wikiful: