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source-lm vs Smart Blur

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 Smart Blur
Detailsource-lm logo source-lmSmart Blur logo Smart Blur
What it doesChrome extension to bulk-add sources to NotebookLM from JSON exports, YouTube, and web pages Blur personal data before you share your screen
StageNot given Not given
FoundedNot given Not given
Based inES Not given
Pricing modelPaid Freemium
PricingFree plan: 5 bulk actions per month, single sources always free. Pro licence: $29 one time, unlimited bulk runs. Free plan includes pattern-based blurring for emails, phone numbers and IDs, click/draw/text selection blurring, and keyword matching. Pro Annual is $14.99 per year with AI detection of names and addresses, screen share auto-activation, and screenshot blurring. Pro Lifetime is $49.99 one-time. Team
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
  • Automatic pattern detection for emails, phone numbers and card numbers
  • Click, draw or text selection to blur any element
  • Custom keyword matching to hide words and names across pages
  • Local AI detection of names and addresses in plain text (Pro)
  • Share Shield auto-activation during screen shares (Pro)
  • Screenshot capture with blur baked into the image (Pro)
  • Saved blurs persist per page on revisit (Pro)
  • Import and export settings (Pro)
  • Works offline with local AI using WebGPU (Pro)
  • Works with any browser-based screen sharing tool
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
  • Automatic screen share detection and activation (Pro)
  • Local AI with offline capability using WebGPU
  • Works across any website with no domain restrictions
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 check4 no change since last check
Trust Flow (Majestic)185
Citation Flow (Majestic)1525
Referring domains (Majestic)2448

5 details filled in for both companies.

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