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File Link AI vs Header Override

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

File Link AI compared with Header Override
Detail File Link AIHeader Override logo Header Override
What it doesGmail add-on that organizes attachments and links across email threads for project teams Open-source browser extension to modify HTTP request and response headers and cookies
StageStartup Not given
FoundedNot given Not given
Based inAU Not given
Pricing modelFreemium Open source
PricingFree plan includes file and link listing, version tracking, seen/unseen markers, save to Drive with rename, project organization, and register export. Pro plan costs $19 per month and adds inline file previews, AI document summaries, priority support, and early access to new features. Not given
Key features
  • AI file chat - ask questions about attachments and get answers without downloading
  • Automatic version tracking that marks current and old file versions
  • Seen and unseen markers for new files in threads
  • Project organization across multiple email threads
  • One-click save and rename attachments to Google Drive
  • Export document register for projects
  • AI summaries describing file contents
  • Inline file previews in Pro plan
  • Google OAuth verified and privately approved
  • 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
What makes it different
  • AI only activates when you explicitly click "Ask AI" - no background scanning or inbox monitoring
  • Zero data stored on servers - files saved directly to your own Google Drive
  • Reads only the open email thread, never scans entire inbox
  • Google verified and independently approved for privacy
  • Revoke access anytime in 2 clicks
  • 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
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)3 no change since last check8 no change since last check
Trust Flow (Majestic)53
Citation Flow (Majestic)2018
Referring domains (Majestic)8713

4 details filled in for both companies.

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