YouTube & Shorts
Creators
Captions raise watch time and open videos to viewers watching on mute — without an evening of typing.
Caption Generator
Upload a video or paste a public link and Subanana generates timed subtitles automatically, with speakers identified and punctuation restored. Export as SRT, VTT, TXT, DOCX, XLSX, Markdown — or burn the subtitles into the video — and translate the same file into any of 95+ languages. Cantonese is a core language rather than an afterthought, including mixed Cantonese-English within a single sentence. Accuracy averages 98%, and you can preview the first 15 minutes of any file free.
Create captivating captions for your content automatically, enhancing engagement with 98% accuracy.
How a video gets its subtitles
Product walkthrough
MP4 · 12:40 · uploaded
Upload a video or paste a public linkCues timed and sized for comfortable reading
Subtitle track
00:12
Here's the dashboard you'll see after signing in.
00:47
Every change you make is saved as you go.
Subtitle files
SRT · VTT
Bilingual subtitles
Two languages in one file
Burned-in video
Rendered up to 4K
Text formats
TXT · DOCX · XLSX · Markdown
Translations
95+ languages
Why the subtitles come out ready to publish
The distance between a raw transcript and a publishable caption file is where the hours go. This is what closes it.
Cues built for reading speed
- Reading-speed flagsCues too dense to read comfortably are flagged in the editor before anyone else sees them.
- Style presetsSave your subtitle style once and apply it to every video in the workspace.
- Live previewFont, size, colour and position, adjusted on the actual frame while you watch.
- Sizing that adaptsLong lines stay on screen instead of running past the edge of the frame.
Every file the platform asks for
- SRT and VTTThe two standard caption formats, per language, ready to upload.
- Bilingual in one passSource and translation in a single subtitle file — or burned in together.
- Burned-in video up to 4KA finished subtitled video, rendered with exactly the style you previewed.
- One ZIPEvery format in a single download when you need them all at once.
Who ships subtitles with this
Four teams, one deadline shape: the video is done and the captions are the last thing standing.
E-learning
Course teams
Every lesson gets accurate, consistently styled captions, and translations for cohorts in other languages.
News & media
Publishers
Clips go out subtitled on schedule, with a house style saved once and applied to every edit.
Campaigns
Brand & social teams
Campaign cuts ship in every market's language, styled to brand and rendered ready to post.
How to add subtitles to a video
Upload the file or paste a link, check the result in the editor, then export the format your platform expects. No software to install.
- Upload the video or paste a linkCommon audio and video files work directly, up to 8h and 30GB per file on all plans. Public YouTube, Instagram and Facebook links can be pasted instead of downloading first.
- Choose the language and any translationsPick the spoken language, then add target languages if you publish in more than one. Translation currently costs no extra minutes.
- Let the AI cut the subtitlesSpeakers are identified automatically and punctuation and line breaks are restored, so the cues read as sentences rather than as a stream of words.
- Review and exportFix anything in the editor, then export SRT, VTT, TXT, DOCX, XLSX, Markdown — or a bilingual SRT, or the video with the subtitles burned in.
What you get with every subtitle job
The specifics, so you know before you upload whether it fits your workflow.
- Input
- Audio and video files, or a public YouTube / Instagram / Facebook link
- Languages
- 95+, with translation into any of them
- Speaker labels
- Automatic, with the speaker count set manually or detected
- Export formats
- SRT, VTT, TXT, DOCX, XLSX, Markdown, bilingual SRT, or burned-in video
- File limits
- 8h and 30GB per file on all plans
- Free tier
- Preview the first 15 minutes of each file, 3 files a month
Caption Generator Software powered by AI in 2026
In the world of content creation, accuracy and efficiency are key. This is especially true when it comes to adding captions to videos, transcribing audio files, or generating subtitles for multimedia content. Caption generators have become essential tools for content creators looking to reach a wider audience and improve accessibility for their viewers. In this blog post, we will delve into the world of caption generators, exploring what they are, how they work, and why they are so important for content creators.
What is a Caption Generator?
A caption generator is a software tool that automatically generates captions or subtitles for videos, audio files, or other multimedia content. These tools use advanced algorithms and speech recognition technology to transcribe spoken words into text, synchronizing them with the corresponding audio or video. Caption generators can save content creators valuable time and effort by automating the captioning process, ensuring accuracy and consistency in the final output.
How Does a Caption Generator Work?
Caption generators utilize speech-to-text technology to convert spoken words into written text. This process involves analyzing the audio or video file, identifying speech patterns, and transcribing the spoken words into text format. The software then synchronizes the captions with the audio or video, ensuring that viewers can follow along seamlessly.
Caption generators may also offer additional features such as multilingual support, customization options for font style and size, and the ability to adjust the timing and positioning of captions. These tools are designed to streamline the captioning process and enhance the overall viewing experience for audiences.
Why Are Caption Generators Important for Content Creators?
Caption generators play a crucial role in making content more accessible and inclusive for all viewers. By providing captions or subtitles, content creators can reach a wider audience, including those who are deaf or hard of hearing, non-native speakers, or individuals watching content in noisy environments. Captions also improve SEO rankings by making video content more searchable and increasing engagement rates.
Additionally, caption generators help content creators comply with legal requirements such as the Americans with Disabilities Act (ADA) and the Web Content Accessibility Guidelines (WCAG). By providing accurate and timely captions, creators can avoid potential lawsuits and ensure that their content is accessible to all.
Conclusion:
Caption generators are powerful tools that can streamline the captioning process, improve accessibility, and enhance the overall viewing experience for audiences. Content creators can benefit from using caption generators to save time, reach a wider audience, and comply with legal requirements. By understanding the importance of caption generators and incorporating them into their content creation workflow, creators can elevate their content and make a positive impact on their viewers.
Questions we getFrequently asked questions
Accuracy averages 98%. Recording clarity, background noise and specialist vocabulary all affect the result — adding a glossary of names and terms measurably improves how proper nouns are handled.
SRT, VTT, TXT, DOCX, XLSX, Markdown, or all of them at once as a ZIP. You can also export a bilingual SRT with the original and translated lines together, or a video with the subtitles burned in.
Yes. Paste the public video link and Subanana fetches it directly — regular uploads and Shorts both work. Private, members-only and region-locked videos need a file upload instead.
You can preview the first 15 minutes of each file free, 3 files a month, with no card required. Exporting subtitle files is a paid feature.
Yes. Speakers are separated automatically, and you can either set the number of speakers yourself or let it be detected.
No. Recordings, transcripts and subtitles are never used to train models, in any processing mode. Files are stored encrypted and every access is logged.
Questions we getFrequently asked questions
Accuracy averages 98%. Recording clarity, background noise and specialist vocabulary all affect the result — adding a glossary of names and terms measurably improves how proper nouns are handled.
SRT, VTT, TXT, DOCX, XLSX, Markdown, or all of them at once as a ZIP. You can also export a bilingual SRT with the original and translated lines together, or a video with the subtitles burned in.
Yes. Paste the public video link and Subanana fetches it directly — regular uploads and Shorts both work. Private, members-only and region-locked videos need a file upload instead.
You can preview the first 15 minutes of each file free, 3 files a month, with no card required. Exporting subtitle files is a paid feature.
Yes. Speakers are separated automatically, and you can either set the number of speakers yourself or let it be detected.
No. Recordings, transcripts and subtitles are never used to train models, in any processing mode. Files are stored encrypted and every access is logged.
Updated 2026-04-10