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ReplyGen 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.

ReplyGen compared with Header Override
DetailReplyGen logo ReplyGenHeader Override logo Header Override
What it doesAI reply generator Chrome extension for LinkedIn, X, and Threads Open-source browser extension to modify HTTP request and response headers and cookies
StageStartup Not given
Founded2025 Not given
Based inIN Not given
Pricing modelFreemium Open source
PricingFree: 25 generation tokens, 7-day trial, full tone customization. Pro: $15.99 one-time per platform, 1,500 generation tokens, lifetime access, BYOK support. Token refill packs: $4.99 for 1,500 tokens. Not given
Key features
  • Context-aware reply generation across LinkedIn, X, and Threads
  • No social media login required
  • Privacy-first design with no data storage
  • 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
  • No social media credentials required, privacy-first approach
  • Dedicated extension per platform with platform-specific optimization
  • Passwordless magic link authentication for simplicity
  • 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)23 no change since last check8 no change since last check
Trust Flow (Majestic)213
Citation Flow (Majestic)2018
Referring domains (Majestic)5213

4 details filled in for both companies.

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