Skip to main content

Built by makers, shipped in public

Sign in

subtitle.im 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.

subtitle.im compared with Header Override
Detailsubtitle.im logo subtitle.imHeader Override logo Header Override
What it doesYouTube captions, on when needed, off when they get in the way. Open-source browser extension to modify HTTP request and response headers and cookies
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Open source
PricingFree: $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
  • 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
  • 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
  • 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)21 no change since last check8 no change since last check
Trust Flow (Majestic)153
Citation Flow (Majestic)2418
Referring domains (Majestic)3613

4 details filled in for both companies.

More alternatives to subtitle.im More alternatives to Header Override

Ask us