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.
Drag and drop your file here
Supported formats: .pptx, .pdf, .doc, .docx, .txt (up to 200 MB)
Try a sample file
Video settings
English
Formal
Balanced
Pick a template
Modern Business Presentation
Bold Metrics
Orange Glow
Colorful design
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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.
Trusted by Top Creators & Social Media Managers
Boost Viewer Retention Rates
Over 80% of videos on social media are watched on mute. If your video lacks captions, you lose the vast majority of your audience in the first three seconds. Leadde's dynamic on-screen text features force viewers to stop scrolling and start reading.
Enhance SEO & Discoverability
Search algorithms love context. By uploading the subtitle files you downloaded from Leadde directly into YouTube's Closed Captions (CC) system, you provide exact keywords. This helps platforms understand what your video is about, pushing your content to the top.
Accessibility Compliance
Ensure your content is inclusive. Generating videos with perfectly synced text via Leadde guarantees that deaf, hard-of-hearing, and non-native speaking audiences can fully engage with and understand your brand's messaging without exclusion.
All-in-One Video Generation
Leadde isn't just a subtitle tool—it's an entire production studio. You don't need a camera or a microphone. You can use our text-to-video tools to generate an AI avatar presenter, and Leadde will automatically bake perfectly synced audio and captions seamlessly into the final export.
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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
Never Publish a Silent Video Again
Join top influencers and marketers using Leadde to create highly engaging, accessible content directly from text. Try our AI video and caption generator for free and boost your retention today.
