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source-lm vs Multify

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

source-lm compared with Multify
Detailsource-lm logo source-lmMultify logo Multify
What it doesChrome extension to bulk-add sources to NotebookLM from JSON exports, YouTube, and web pages Free AI browser extension for Chrome and Firefox
StageNot given Not given
FoundedNot given Not given
Based inES US
Pricing modelPaid Free
PricingFree plan: 5 bulk actions per month, single sources always free. Pro licence: $29 one time, unlimited bulk runs. Not given
Key features
  • Split JSON exports into Markdown files with 400,000-word budget
  • Filter sources, detect duplicates, and batch delete
  • Incremental uploads skip already-added content
  • No account or login required
  • Source-available code published unminified
  • No data written to disk or stored on servers
  • Supports Telegram Desktop and Telegram for macOS exports
  • Doubleslash shortcut for writing and research anywhere
  • AI-powered Gmail research to look up email senders
  • Chat with any website to summarize and extract information
  • Save links, posts, podcasts and videos to Stash
  • MCP integration with AI agents like Claude and ChatGPT
  • Works on Chrome and Firefox desktop browsers
What makes it different
  • No backend or recurring costs: pay once, keep the licence forever
  • Runs entirely in your browser with no account or login needed
  • Smart splitting keeps records whole and avoids duplicates on re-runs
  • Source-available and unminified so you can audit the code yourself
  • Extends NotebookLM's interface with bulk operations and source management tools
  • Free to install and use with no payment required
  • Operates directly in your browser without a separate app
  • User maintains full control over what is shared and sent
  • Integrates with existing AI agents through MCP protocol
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)15 −1 (down) since last check31 no change since last check
Trust Flow (Majestic)180
Citation Flow (Majestic)1523
Referring domains (Majestic)2423

5 details filled in for both companies.

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