YouTube & Shorts
Creators
Captions raise watch time and open videos to viewers watching on mute — without an evening of typing.
AI Auto Captioning
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. Accuracy averages 98%, and you can preview the first 15 minutes of any file free.
Automatically generate captions by AI for your video in minutes. 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
AI Auto Captioning Software powered by AI in 2026
AI Auto Captioning: Everything Content Creators Need to Know
In today's digital age, content creators are constantly looking for ways to enhance their videos and make them more accessible to a wider audience. One of the key tools that can help achieve this is AI auto captioning. In this blog post, we will explore everything content creators need to know about AI auto captioning and how it can benefit their work.
What is AI Auto Captioning?
AI auto captioning is a technology that uses artificial intelligence to automatically generate captions for videos. This can be incredibly useful for content creators who want to make their videos more accessible to viewers who are deaf or hard of hearing, as well as those who prefer to watch videos with the sound off.
How Does AI Auto Captioning Work?
AI auto captioning works by analyzing the audio track of a video and transcribing it into text. The technology uses machine learning algorithms to recognize speech patterns and convert them into written words. This process is much faster and more accurate than manual captioning, saving content creators time and effort.
Benefits of AI Auto Captioning for Content Creators
There are several benefits to using AI auto captioning for content creators. Firstly, it can help improve the accessibility of their videos, making them available to a wider audience. This can lead to increased viewership and engagement.
Additionally, AI auto captioning can improve the SEO of videos, as search engines can crawl and index the captions, making the content more discoverable online. This can help content creators reach a larger audience and grow their following.
Furthermore, AI auto captioning can help content creators save time and resources, as they no longer have to manually transcribe their videos. This can free up time for them to focus on other aspects of their work, such as creating new content or engaging with their audience.
Best Practices for AI Auto Captioning
While AI auto captioning can be a valuable tool for content creators, it is important to keep in mind some best practices to ensure the accuracy and quality of the captions. Content creators should always review and edit the auto-generated captions to correct any errors or inaccuracies. Additionally, they should consider the readability of the captions, using proper punctuation and formatting to make them easier to follow.
In conclusion, AI auto captioning is a powerful tool that can help content creators enhance the accessibility and reach of their videos. By understanding how AI auto captioning works and implementing best practices, content creators can take their videos to the next level and connect with a larger audience.
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