AI Caption Generator for Video

Stop worrying about subtitle sync issues. Leadde is an intelligent AI video generator that transforms your text scripts into engaging videos with perfectly synced voiceovers and dynamic on-screen captions automatically. Perfect for YouTube creators, educators, and marketers looking to maximize viewer retention and accessibility without manual editing.

Topic

File

Text

Script

PPT

Drag and drop your file here

Support format: .pptx,.pdf,.doc,.docx,.txt (up to 200MB)

Try a sample File

Video settings

Target language

Tone

Detail options

Pick a template

Bold Metrics

Information Security Overview

Dynamic Marketing

Colorful design

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Capture the Sound-Off Audience Effortlessly

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Why Leadde is the Best Auto Caption Video Maker

100% Accurate Script-to-Subtitle Sync

Because Leadde generates your video directly from your input text, documents, or PPTs, the captions are always 100% accurate. There are no speech recognition errors or misspellings to fix. The AI instantly creates the voiceover and maps the text perfectly to the audio timeline.

Dynamic Text Styles & Animations

Don't settle for boring, standard closed captions. Look like a top-tier creator by customizing your on-canvas text. You can easily modify the text color, font, weight, size, and opacity, and add entrance, exit, or emphasis animations to make your words pop on fast-scrolling platforms.

Download Separate Subtitle Files

Need closed captions (CC) for YouTube SEO? Leadde doesn't just hard-code text onto your video. When you are ready to publish, the sharing page allows you to seamlessly download the standalone subtitle files alongside your MP4 video file for maximum platform flexibility.

Seamless 89-Language Translation

Why limit your reach to one country? Once your English video is generated, use Leadde's translate feature to instantly convert the audio script and on-canvas text into Spanish, Hindi, or 87 other languages. Add foreign subtitles to your video to drastically expand your global viewership.

How to Generate Captioned Videos with AI

Make your content accessible and engaging in three simple steps.

Step 1: Input Your Script or Document

Log into the Leadde online editor. Instead of uploading a heavy video file, simply paste your text script or upload your .doc, .pdf, or .pptx files directly into the workspace. The AI will automatically structure your content into scenes.

Step 2: Customize Text Styles & Avatars

Select a realistic AI avatar to narrate your video. Click the "Text" button to add dynamic text boxes to your canvas. Adjust the font, apply bold colors, and set trigger animations in the timeline so the words appear exactly when spoken to retain viewer attention.

Step 3: Export Video & Subtitles

Preview the visual output and click "Generate Video". Once processed, go to the share page and click "Download" to save your high-quality video and its accompanying subtitle files directly to your device for immediate social media upload.

Frequently asked questions

Leadde's captions are 100% accurate. Because our platform generates the voiceover directly from the text or document you provide, there is zero risk of speech recognition errors or misunderstood accents. What you type is exactly what is generated and capt

Yes. When your video is finished generating, you can go to the sharing page and click the "Download" button to select and download the independent subtitle files, which can then be uploaded to YouTube or other platforms.

Absolutely. Leadde acts as an advanced video editor. You can easily select your text elements on the canvas and modify the font, color, weight, opacity, and layer order, and add specific entrance or emphasis animations.

Leadde is primarily a text-to-video and document-to-video generation platform. It automatically generates voiceovers, scenes, and synced subtitles from your written scripts or uploaded files (.doc, .pdf, .pptx) rather than transcribing the audio of pre-re