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Header Override vs Locksy

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 Locksy
DetailHeader Override logo Header Override Locksy
What it doesOpen-source browser extension to modify HTTP request and response headers and cookies Lock and password-protect any browser tab in one click with offline encryption and no account needed
StageNot given Startup
FoundedNot given 2024
Based inNot given Not given
Pricing modelOpen source Freemium
PricingNot given Free Core tier includes core tab locking, biometric unlock, offline encryption, 3 domain locks, 3 intruder photos, 5 biometric unlocks per day, and 3 total uses of Lock All Tabs. Locksy Pro is $4.99 one-time payment for lifetime license covering up to 5 devices, with unlimited domain locks, unlimite
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
  • Password protection with PBKDF2 encryption at 600,000 iterations
  • Domain and URL path locking with wildcard patterns
  • Biometric unlock with Touch ID, Windows Hello, and Face ID
  • Auto-lock timer with smart activity detection
  • Privacy Blur Shield to mask passwords and credit cards
  • Screen Share Shield for meeting protection
  • Webcam intruder capture on failed unlock attempts
  • Scheduled locking during specific hours and days
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
  • No account required, works instantly in 30 seconds
  • One-time $4.99 lifetime Pro payment with no subscriptions
  • Works across all major browsers including Chrome, Edge, Firefox, Brave, Opera, Vivaldi
  • Granular tab-level protection instead of all-or-nothing device lock
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 check36 no change since last check
Trust Flow (Majestic)31
Citation Flow (Majestic)1820
Referring domains (Majestic)1320

4 details filled in for both companies.

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