By Zengshi AI
✨AI CREATIVE STUDIO

AI Video Subtitle Generator —AI video transcription for auto captions

Upload a video and AdsTurbo uses AI video transcription to turn speech into time-synced captions, then creates a subtitled video you can download.

VIDEO SUBTITLE

Upload a video and turn spoken audio into time-synced captions automatically.

Video File

How to Add Subtitles to a Video with AdsTurbo

Turn an uploaded source video into a captioned video in three steps.

  1. Upload your video

    Import a video from your device or AdsTurbo Assets.

  2. Generate AI subtitles

    AdsTurbo transcribes the spoken audio and creates time-synced captions automatically.

  3. Download the subtitled video

    When processing finishes, preview and download the subtitled video from Task Center.

What makes Video Subtitle powerful

From raw video to captioned content—fully automatic.

AI video transcription

AI video transcription

AI recognizes the speech in your video and turns it into captions automatically.

TRANSCRIPTIONAI
Automatic caption timing

Automatic caption timing

Caption lines are aligned with the spoken audio as part of the generated subtitled video.

TIMINGSYNC
Subtitled video output

Subtitled video output

Get a subtitled version of your uploaded video, ready to preview and download from Task Center.

OUTPUTVIDEO
Captions for social video

Captions for social video

Add captions to videos created for TikTok, Instagram Reels, YouTube Shorts, and other channels.

SOCIALCAPTIONS
Upload and generate

Upload and generate

Start with a video file—no manual transcription or subtitle timing setup required.

SIMPLEFAST
Clear without sound

Clear without sound

Help viewers follow spoken content when they watch with sound off and make video messages easier to understand.

CLARITYACCESS

Everything inside AdsTurbo Video Subtitle

Turn video speech into time-synced captions

AI video transcription

Turn video speech into time-synced captions

  • AI transcribes spoken audio as part of automatic caption generation
  • Caption lines are aligned with the speech in your video
  • Preview and download the finished subtitled video from Task Center
Create captioned videos without manual transcription

Built for content creators

Create captioned videos without manual transcription

  • Add captions to TikTok, Reels, and Shorts video files you are allowed to use
  • Let AI handle speech recognition and caption timing
  • Download the finished captioned video for your publishing workflow
From uploaded video to captioned output

Automatic workflow

From uploaded video to captioned output

  • Upload a source video from your device or AdsTurbo Assets
  • Start generation without typing or timing captions by hand
  • Find the completed subtitled version in Task Center
Make spoken video content easier to follow

Clarity & accessibility

Make spoken video content easier to follow

  • Help viewers understand the message when sound is off
  • Give audiences a visual version of the spoken content
  • Use captions across marketing, social, and product videos

AI video transcription vs other caption workflows

Compare how each workflow turns speech into captions

AdsTurbo Video Subtitle
Manual captioning
Platform auto-captions
Video editing tools
Speech-to-caption step
Automatic
Manual
Automatic
Tool-dependent
Caption timing
Automatic
Manual
Automatic
Automatic or manual
Downloadable subtitled video
Yes
Requires video editing
Varies by platform
Tool-dependent
Standalone transcript or subtitle file
Not currently
Possible
Varies by platform
Tool-dependent
Manual caption entry required
No
Yes
No
Depends on tool
Finished output location
AdsTurbo Task Center
Chosen editor
Platform workspace
Chosen editor

Exact features and export options vary by platform and editing tool.

What Video Subtitle can generate

Social Media Captioned Videos

Social Media Captioned Videos

Videos with time-synced captions created from the speech in your uploaded TikTok, Reels, Shorts, or other social content.

E-commerce Product Videos

E-commerce Product Videos

Product demos, reviews, and how-to videos with captions that make spoken details easier to follow, including when viewers watch without sound.

Captioned Training Videos

Captioned Training Videos

Tutorials, presentations, and team videos with captions that make spoken instructions easier to follow.

Video Subtitle Input and Output

See what you provide and what AdsTurbo returns after generation.

Video input
Upload a source video in a supported format.
AI video transcription
AI recognizes the spoken audio and turns it into captions for the video.
Automatic caption timing
Generated caption lines are aligned with the speech automatically.
Subtitled video output
Video Subtitle produces a video with captions included.
Task Center delivery
Preview and download the completed subtitled video from Task Center.

Who should use Video Subtitle?

Content creators & influencers

Content creators & influencers

  • Add captions to your videos without manual typing
  • Prepare captioned TikTok, Reels, and Shorts content
  • Download the subtitled version for your publishing workflow
E-commerce brands & sellers

E-commerce brands & sellers

  • Turn spoken product demos into clear captions
  • Make product details easier to follow with sound off
  • Reuse captioned videos across your own sales channels
Marketing teams & agencies

Marketing teams & agencies

  • Create captioned ad creatives and campaign videos
  • Make spoken messages readable in sound-off viewing
  • Retrieve finished subtitled videos from Task Center

FAQ

VIDEO SUBTITLE

01How do I generate subtitles from a video?

Upload your video and start generating. AdsTurbo transcribes the spoken audio, creates time-synced captions, and produces a subtitled video automatically. If you first need to create a talking-head video from a photo and audio, use AdsTurbo AI Lip Sync.

02How does AI video transcription create captions?

AdsTurbo recognizes the spoken audio in your uploaded video and uses that transcription to generate time-synced captions. Video Subtitle returns a subtitled video rather than a separate text transcript.

03Can I transcribe a TikTok video into captions?

Yes, for a TikTok video you created or have permission to use. Upload the video file and AdsTurbo turns its spoken audio into time-synced captions in a subtitled video; it does not download videos from a TikTok URL. To create another-language version of your video, use AdsTurbo Video Translation.

04Can I add auto captions to a video online?

Yes. AdsTurbo generates captions in your browser workflow, so you can subtitle a video without manually transcribing or timing every line.

05What video formats are supported?

The current Video Subtitle uploader accepts MP4, MOV, and MKV video files.

06Do I need to configure any settings?

No. Upload a video and start generation; AdsTurbo handles speech recognition and caption timing automatically.

07How accurate are the AI-generated subtitles?

Results depend on the clarity of the speech and recording. Clear audio with limited background noise gives the transcription the best source material. Preview the completed subtitled video before publishing it.

08What output does Video Subtitle create?

Video Subtitle creates a subtitled version of the uploaded video. When generation finishes, you can preview and download it from Task Center.

09Will the subtitles work on social media platforms?

You can use the downloaded captioned video in your TikTok, Instagram, YouTube, or other publishing workflow as long as the video meets that platform's current upload requirements.

10Where can I find the finished subtitled video?

Open Task Center after generation finishes to preview and download the completed subtitled video.

11Can AdsTurbo transcribe video to text?

AdsTurbo transcribes the speech in your video into time-synced captions and returns a subtitled video. It does not currently export a standalone text transcript, and it does not export SRT or VTT subtitle files.

Turn video speech into captions — automatically

Upload a video, let AI transcription create time-synced captions, then download the finished subtitled video from Task Center.