Submarine Player generates and translates subtitles while videos play, with the page specifying Apple Silicon and macOS 15 or later.
Checksub
Checksub generates subtitles, translates videos, and creates dubbed voiceovers for localized video content.
About Checksub
Checksub is a web-based tool that generates subtitles for videos, translates them, and produces AI dubbing and voice-overs. It can clone a speaker's voice in 30 languages and isolate music and background noise so that only the original voice is replaced. Translations are offered in up to 200 languages, and subtitles can be exported as a file, burned into the video, or styled with animations including a karaoke preset. Once subtitles or dubbing are generated, individual sentences can be edited and regenerated in an online editor.
Key features
- Automatic subtitle generation; converts an existing script into subtitles synchronized with video
- AI dubbing that replaces the original voice while keeping background audio
- Voice cloning in 30 languages, applied to a voice-over in one click
- Voice isolation separates music and background noise from original voices
- Subtitle translation into up to 200 languages
- Animated and styled subtitles, including karaoke animation and burn-in export
Best for: Teams and video creators who need subtitles, translation or dubbing in many languages without producing a separate video for each language.
Good for
- Subtitling, translation, dubbing and voice cloning are handled in one web platform
- Voice isolation keeps original background audio while dialogue is replaced
- Subtitle styling, burn-in and subtitle-file export are available from the same editor
Watch out for
- Pricing information is limited to a free trial; paid plans are not described in the source
- Web-only tool; desktop or mobile applications are not mentioned
- Voice cloning is stated for 30 languages, fewer than the 200 languages offered for translation
Checksub at a glance
- Website
- checksub.com
- Category
- AI & Machine Learning › AI Voice & Audio
- Type
- Online tool
- Pricing
- Free trial
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Checksub alternatives
Tools and sites you could use instead, ranked by how closely they match.
Addsubtitle translates video subtitles and voice into more than 100 languages through a browser-based tool.
Gotalk.ai generates voiceovers from text with more than 120 voices across 50 languages.
Soundverse generates music, lyrics, videos, and voices from text prompts through an AI creation studio.
AI Phone translates phone, voice, and video calls in more than 150 languages, with iOS and Android apps available.
Speechlab localizes audio and video with dubbing, captions, and subtitles in more than 50 languages.
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Checksub FAQ
Is there a free trial?
Yes. The site offers a free trial and an option to book a demo.
Can I export a subtitle file instead of burning subtitles into the video?
Both options are described: you can export the video with burned-in subtitles, or export a subtitle file.
How many languages are supported for translation and voice cloning?
Translation is described as available in up to 200 languages, while voice cloning is available in 30 languages.
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