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Header Override vs AI Perfect Assistant

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 AI Perfect Assistant
DetailHeader Override logo Header OverrideAI Perfect Assistant logo AI Perfect Assistant
What it doesOpen-source browser extension to modify HTTP request and response headers and cookies ChatGPT add-ins for Microsoft Office applications to boost productivity with AI tools
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelOpen source Freemium
PricingNot given Free plan available forever with 10 monthly tokens and default model selection. Premium plan at $25.99/month (discounted to $16.99/month when billed annually) with unlimited tokens and access to multiple AI models (DeepSeek, Gemini, ChatGPT, Claude, Perplexity). A limited-time 30% discount is curren
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
  • 60+ AI tools for writing, summarization, and content generation
  • Native integration with Word, Excel, PowerPoint, Outlook, OneNote, and Teams
  • Support for multiple AI models including ChatGPT, Claude, Gemini, Perplexity, and DeepSeek
  • Generate professional email replies and messages
  • Summarize and extract key points from long text
  • Excel formula generation and explanation
  • Translation across multiple languages
  • Telegram integration for chat messages and translation
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
  • Works natively inside Office applications instead of requiring a separate tool
  • Over 60 AI tools in one subscription covering writing, summaries, formulas, and more
  • More affordable than Grammarly Business or QuillBot Premium
  • Generate reports, summaries, and meeting notes in one click
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 check19 no change since last check
Trust Flow (Majestic)33
Citation Flow (Majestic)1836
Referring domains (Majestic)13275

4 details filled in for both companies.

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