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Header Override vs LassoSnap

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

Header Override compared with LassoSnap
DetailHeader Override logo Header OverrideLassoSnap logo LassoSnap
What it doesOpen-source browser extension to modify HTTP request and response headers and cookies Carry what you learn in one AI into the next.
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelOpen source Freemium
PricingNot given Free: Unlimited saving, organizing, search & tags, JSON/Markdown export & backup, 3 AI Summaries/month, 10 Obsidian pushes/month, 5 Notion pushes/month. Pro: $7.99/month or $79/year (save 17%), includes unlimited Obsidian push, unlimited Notion push, 50 AI Summaries/month, priority support. Pro Plus
Key features
  • Modify request and response headers with a focused editor interface
  • Scope rules to specific URLs using browser-supported filter patterns
  • Customize response cookies with Domain, Path, SameSite, Lifetime, Max-Age, and Secure attributes
  • Create up to five local rule profiles for different projects and test setups
  • Import and export profiles as local JSON files between browsers
  • Enable, disable, delete, and annotate rules with comments
  • Support for Chrome, Edge, and Firefox
  • All rules stored locally in browser with no server transmission
  • One-Click Capture
  • Cross-AI Relay
  • Synthesize & Push
  • Support for ChatGPT, Claude, Gemini, Perplexity, and Copilot
  • Local-first storage with optional Google Drive backup
  • Searchable and tagged library
  • AI Summary for consolidating snippets
  • Obsidian and Notion integration
  • JSON and Markdown export
  • Priority support with Pro plan
What makes it different
  • Open-source with MIT License and full transparency
  • Rules stored entirely locally with no analytics, tracking, or external servers
  • Lightweight alternative to ModHeader
  • URL scoping prevents rules from affecting unintended websites
  • Simple interface requires no coding knowledge
  • Carry context and insights across different AI platforms without re-explaining
  • Local-first privacy: all data stays on your device by default
  • AI-powered synthesis of scattered insights into consolidated summaries
  • One-click capture without leaving the conversation
  • Works across Chrome and Edge browsers
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)8 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)180
Referring domains (Majestic)131

4 details filled in for both companies.

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