| What it does | Open-source browser extension to modify HTTP request and response headers and cookies
| AI voice-over and subtitles for any video in your browser in 38 languages
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| LT
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| Pricing model | Open source
| Freemium
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| Pricing | Not given
| Premium: 2 credits per minute voice-over, or 0.2 credits when replaying a voiced video; Standard: 1 credit per minute, or 0.2 credits replayed; Economy: 0.5 credits per minute, or 0.2 credits replayed. Subtitles only: 1 credit per minute (Premium translation) or 0.5 credits (Economy). One-time packs
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| 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
| - Works on any video player including YouTube, streaming sites, course sites, and live streams
- No subtitles required; translates from audio directly
- 38 languages supported for voice-over and subtitles
- Maintains consistent character and place names throughout series
- Synchronized voice-over that follows pauses and seeking
- Original audio remains audible at adjustable levels
- Automatic language detection
- Subtitles-only option at lower credit cost
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| 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
| - Works where subtitles don't exist, translating directly from audio
- Proper translation support for small languages like Lithuanian, Slovak, Czech and Ukrainian with correct grammar
- Free replay of already-voiced content within 90 days and for archived videos
- Only 40 free credits needed to start, no card required
- Library of pre-voiced popular videos to watch immediately without waiting
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 20 ▲ +5 (up) since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 1 |
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| Citation Flow (Majestic) | 18 | 15 |
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| Referring domains (Majestic) | 13 | 5 |
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Header Override
Vocnu