subtitle.im vs FontSwap

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

subtitle.im compared with FontSwap
Detail	subtitle.im	FontSwap
What it does	YouTube captions, on when needed, off when they get in the way.	Free Chrome extension to detect fonts on any website, find free alternatives, and swap them live
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Free: $0, no sign-up needed, 10 successfully handled videos in total with no monthly reset. Pro subscription: $17.99 / year, billed annually. Pro Lifetime: $29.99 / once, pay once for ongoing maintenance and all major and minor updates.	Not given
Key features	Automatic caption control - follow YouTube, auto-open, or auto-close Local OCR detects burned-in subtitles Handle duplicate captions with separate settings Manage different languages in captions Channel-specific caption rules (Pro) Video-specific rules (Pro) Remember confirmed caption closures (Pro) Restore captions if hidden by mistake Privacy-first local processing	Canvas-based font detection on any page Premium font flagging with free alternative matching Live font swapping with instant undo Font inspector showing computed properties Highlight font usage across page elements Export results as Markdown, JSON, or CSS WCAG contrast ratio audit Font performance metrics tracking Works on any website including authenticated pages No account or sign-up required
What makes it different	All processing happens locally in your browser with no video frames uploaded Automatically detect burned-in subtitles and handle them separately from YouTube captions Set caption preferences at global, channel, or video level Free to try with 10 videos before upgrading No email or account required for free use	No account or data collection required Works on any website instantly without installation beyond the extension High accuracy font detection using DOM computed properties Completely free with no premium tier or ads Changes are local only and changes persist in your browser session
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)	32 +2 (up) since last check	3 no change since last check
Trust Flow (Majestic)	15	7
Citation Flow (Majestic)	24	25
Referring domains (Majestic)	36	30

4 details filled in for both companies.

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