ChatGPT
Perplexity.ai
ChatPDF
Claude AI
Obsidian
Humata AI
Gemini
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.

JSONFormatter.org
Decodebase64.io
CyberChef
Base64.ai
All Over Tools
DevToys
Image to Base64 Converter
Base64 Encode and Decode Online
Which is more popular?
Based on our record, NotebookLM seems to be more popular. It has been mentioned 11 times since March 2021.
Website, pricing, platforms and company facts side by side.
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NLM
NotebookLM
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| Website | notebook.google.com | base64encode.dev |
| Pricing | — | |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of NotebookLM yet.
Need to convert text quickly? Use this free Base64 Encode & Decode online tool to encode or decode data instantly. Fast, secure, and works directly in your browser.
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Google made a new AI note app - NotebookLM review
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Recommendations tracked on public social media and blogs since March 2021.

So I was thinking that, and just to do a bit of brainstorming, I opened Gemini. I know, most people prefer Claude these days. But for these sort of brainstorming, Gemini works well for me, especially Gemini Notebook, A.K.A NotebookLM. - Source: dev.to / 12 days ago
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 2 months 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
Tracking Base64Encode.dev since Jan 2026.
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ChatGPT is a powerful, open-source language model.
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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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Our Base64 Decoder converts Base64 encoded data back to its original format, including text, binary, and images. It’s a fast, free, and easy to use tool.
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Chat with any PDF! Join millions of students, researchers and professionals to instantly answer questions and understand research with AI
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