Skip to main content

Built by makers, shipped in public

Sign in

Header Override vs Swoopy

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 Swoopy
DetailHeader Override logo Header OverrideSwoopy logo Swoopy
What it doesOpen-source browser extension to modify HTTP request and response headers and cookies Save the images Chrome won't
StageNot given Not given
FoundedNot given Not given
Based inNot given IN
Pricing modelOpen source Free
PricingNot given Free: all features included. Optional donations accepted through Buy Me a Coffee.
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
  • Save images from under overlays and backgrounds
  • Export as WebP, PNG or JPEG with quality settings
  • Download entire pages as a single ZIP file
  • Extract brand colors, fonts and logos
  • Generate design tokens for CSS and Tailwind
  • SVG editor with React export
  • Save real GIFs and videos
  • Copy any image as PNG
  • Private history kept only on device
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
  • Saves images Chrome's menu cannot, including overlaid images, backgrounds and SVGs
  • Completely free with no tracking, analytics or account required
  • Extract design systems including colors, fonts and spacing as copyable tokens
  • Compress images to WebP without uploading to external sites
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)20 +5 (up) since last check1 no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)1810
Referring domains (Majestic)131

4 details filled in for both companies.

More alternatives to Header Override More alternatives to Swoopy

Ask us