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Header Override vs Skisso

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 Skisso
DetailHeader Override logo Header OverrideSkisso logo Skisso
What it doesOpen-source browser extension to modify HTTP request and response headers and cookies Browser extension that turns pointing at a live interface into a change your AI coding agent can act on
StageNot given Not given
FoundedNot given Not given
Based inNot given SE
Pricing modelOpen source Free
PricingNot given Not given
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
  • Live element selection and editing on any webpage
  • Real CSS editing with instant visual feedback
  • Generate diffs for AI agents to act on
  • Chat with coding agents without leaving the page
  • Convert selections to GitHub issues
  • Works on localhost, staging and live sites
  • Area screenshot and annotation mode
  • Support for multiple AI agents
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
  • Direct manipulation interface eliminates describing pixels in prose
  • Outputs agent-ready diffs instead of screenshots or descriptions
  • Works with any AI coding agent through structured plain text
  • Zero telemetry and fully local privacy model
  • Sandbox environment—nothing ships until you explicitly copy
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)37
Citation Flow (Majestic)1816
Referring domains (Majestic)1311

4 details filled in for both companies.

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