AI captions · 60+ languages · SRT and VTT

Add subtitles to video online, free

Upload your video and our AI listens to the speech and writes accurate, timed subtitles in minutes. Download them as SRT or VTT and add them to YouTube, Facebook, LinkedIn, your course or any video editor, or watch the video with its subtitles right in your browser.

Add subtitles to my video How it works

How to add subtitles to a video

Three steps, nothing to install, no typing.

1

Upload the video

MP4, MOV, MKV, WebM, AVI and other formats, or only the audio. Choose the language spoken in the video.

2

AI writes the subtitles

Speech becomes short, readable subtitle lines with exact start and end times. A 10-minute video usually takes a few minutes.

3

Download and add them

Get SRT, VTT and TXT files. Fix any line in the Subtitle Studio, translate them, then upload them where your video lives.

Example: what you get

A standard SRT file: numbered lines with timing, ready for any platform.

1
00:00:00,640 --> 00:00:03,120
Hi everyone, welcome back to the channel.

2
00:00:03,400 --> 00:00:06,850
Today I’ll show you three easy ways
to edit videos on your phone.
The same subtitles also come as WebVTT (.vtt) for web players and as plain text (.txt).

Where to add your subtitle file

Most platforms take an SRT or VTT file and show it as captions viewers can turn on and off.

YouTube

In YouTube Studio open the video, go to Subtitles, choose the language, then Add → Upload file → With timing and select the SRT. Upload more files to offer more languages; viewers pick them in the CC menu, and search engines can read the text.

Facebook and LinkedIn

Both accept an SRT file when you upload or edit a video post. Facebook expects the language in the file name, for example video.en_US.srt.

Vimeo, Wistia and course platforms

Vimeo, Wistia, Teachable, Kajabi, Thinkific and most learning platforms (Moodle, Canvas) take SRT or VTT in the video settings, under subtitles or captions.

TikTok, Instagram Reels and Shorts

These apps do not take subtitle files, so the text has to be in the picture. Import the SRT in your editor (CapCut, Premiere Pro, DaVinci Resolve, Final Cut Pro all read SRT), style it, and export the video with the subtitles burned in.

Video editors

Premiere Pro: File → Import the SRT to get a captions track. DaVinci Resolve: File → Import → Subtitle. Final Cut Pro: File → Import → Captions. You keep full control of fonts, colours and position.

Players and TVs

For VLC, Plex, Kodi or a smart TV, give the SRT the same name as the video and keep both in the same folder: the player loads the subtitles by itself.

Why add subtitles to your videos

Soft subtitles or burned-in subtitles?

Soft subtitles (closed captions) are a separate SRT or VTT file. Viewers can switch them on and off and choose a language, you can fix a typo without exporting the video again, and search engines can read them. Use them on YouTube, Vimeo, Facebook, LinkedIn, course platforms and players.

Burned-in subtitles (open captions) are part of the picture and always visible. Use them for TikTok, Reels, Shorts and ads that autoplay without sound: import the SRT from SubtitleVideo in your editor and export the video with the text on it.

Already have a video with burned-in text you need as a file? Extract hardcoded subtitles reads it back to SRT, and the Subtitle Remover erases it from the picture.

40 free minutes, then from $0.12 per minute

Verify your email and add subtitles to your first videos for free. After that, buy minutes once ($15 for 120 minutes) with PayPal or a card: no subscription, no watermark.

Try it free

Questions about adding subtitles to a video

Can I add subtitles to a video for free?

Yes. You get 40 free minutes when you verify your email, enough for several short videos. Translating the finished SRT with the Subtitle Translator is free too.

Which video formats can I upload?

MP4, MOV, MKV, WebM, AVI, MPEG, FLV, 3GP and most other video formats, plus audio files such as MP3, M4A and WAV. For a very large file you can upload only the audio track: the subtitles are the same.

Which languages are supported?

More than 60 spoken languages, including English, Spanish, Portuguese, French, German, Hindi, Arabic, Indonesian, Vietnamese, Chinese, Japanese and Korean. For videos where people switch languages, choose Multiple languages (auto-detect).

How accurate are the subtitles?

Usually 90% to 100% on clear speech. Loud music, people talking over each other or a poor microphone lower it. Read the subtitles once and fix any line in the Subtitle Studio before you publish.

Can I edit the subtitles?

Yes. Open the job in the Subtitle Studio to change the text and timing next to your video, then download SRT, VTT or TXT. An SRT is also a plain text file you can open in any text editor.

Can I get subtitles in another language?

Yes. Translate the finished subtitles into 80+ languages with the Subtitle Translator; the timing stays the same. See also English subtitles for any video.

Do you add a watermark?

No. The subtitle files are yours, with no watermark and no branding.

Can I get a video with the subtitles burned in?

Import the SRT in your video editor (CapCut, Premiere Pro, DaVinci Resolve, Final Cut Pro) and export the video with the subtitles in the picture. That way you also choose the font, size and position.

What happens to my video?

It stays private. Uploaded videos are deleted automatically after 7 days; your subtitle files stay in your account for a year.

Add subtitles to your first video

40 free minutes when you verify your email. No credit card needed.

Upload a video

Related subtitle tools

Subtitle translatorTranslate an SRT or VTT file into 80+ languages, timestamps kept. Free.English subtitles for any videoKorean, Japanese, Spanish or any language: get English subtitles timed to your video.Audio to SRTTurn MP3, WAV or M4A recordings into timed SRT subtitles or text.Extract hardcoded subtitlesRead subtitles burned into the picture and get them back as an editable SRT.Video transcriptionInterviews, lectures and meetings to accurate text, TXT, SRT or VTT.Download movie subtitlesSearch OpenSubtitles and SubDL at once and download the SRT for free.