Responsive Tool vs ghfs

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

Responsive Tool compared with ghfs
Detail	Responsive Tool	ghfs
What it does	Free responsive website checker for mobile, tablet and desktop	GitHub Issues as local files for coding agents
Stage	Not given	Startup
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Freemium
Pricing	Not given	Free: 1 repository, issues, background sync. Hobby: $5/mo or $48/yr (save 20%), unlimited repositories, all issues, background sync. Pro: $15/mo or $144/yr (save 20%), everything in Hobby plus projects, discussions, and pull requests (coming soon). Enterprise: contact for pricing.
Key features	Test multiple device viewports simultaneously Real CSS viewport rendering Share setup links Custom pixel width testing No installation required Sync scroll across panes Browser-based with no account needed	Project-level AI rules - Write configuration files for Claude Code, Cursor, Copilot, and other agents Three-command setup - curl, ghfs init, and ghfs to get started
What makes it different	Compare multiple real device widths side by side instead of switching one at a time Faster than DevTools for checking several device sizes at once Entirely browser-based with no setup, signup or download Built and maintained by one developer in the open	Read-only design guarantees no unintended issue modifications
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	1	0
Citation Flow (Majestic)	25	15
Referring domains (Majestic)	14	16

4 details filled in for both companies.

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