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Automatic Subtitle Generator - Auto Caption Video in Seconds

Generate subtitles from video automatically with our AI-powered auto caption generator. Automatically add subtitles to video online with 95% accuracy. Create subtitles for video free and auto translate subtitles into 20+ languages in one click.
filmora features 4.8 (3287 reviews)
Win 11 /Win 10 / Win 8 / Win 7 (64 bit OS) | System Requirements
macOS 10.15 - macOS 26 (10.14 or earlier? Click here) | Apple M1, M2, M3 & M4 compatible
Generate subtitles from video automatically with our AI-powered auto caption generator. Automatically add subtitles to video online free with 95% accuracy. Create subtitles for video free and auto translate subtitles into 20+ languages in one click.
Use Cases

Auto Caption Generator for Every Video Content Type

Our automatic subtitle generator adapts to your workflow whether you create social content, educational videos, or professional presentations. Add subtitles to video automatically and boost engagement across all platforms.

TikTok as an example

Social Media Short Video Creation

Auto generate captions for TikTok, Instagram Reels, and YouTube Shorts. Our auto caption video feature ensures your content is accessible and engaging with automatic subtitles that capture viewer attention.
80% higher retention on muted videos Improve accessibility Boost discoverability
Product demo as an example

Business & Marketing Videos

Create professional presentations with our free automatic subtitle generator. Automatically add subtitles to video for product demos, client pitches, and marketing materials with brand-consistent styling.
Professional guaranteed Auto translate for global teams Save 8+ hours per video project
Online classes as an example

Educational & Training Videos

Generate subtitles from video automatically for online courses and training materials. Our automatic subtitle generator helps students learn better with synchronized, accurate captions in multiple languages.
Support diverse learners Improve student comprehension by 30% Create subtitles for video
Audio book excerpt as an example

Podcast & Audio to Video

Transform audio content into engaging videos with our auto subtitle generator. Automatically add subtitles to video online free and repurpose podcasts for YouTube, social media, and streaming platforms.
Reach 300% wider audience Auto caption multiple speakers Export to all platforms instantly

Powerful Auto Caption Features That Save Time

Everything you need in a free automatic subtitle generator to create professional captions. Auto generate subtitles from video with industry-leading accuracy and unlimited customization options.

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AI-Powered Speech Recognition

Advanced AI technology automatically recognizes and transcribes speech with 95% accuracy. Our auto subtitle generator processes audio in real-time to generate subtitles from video with minimal editing required.
Feature Highlights
  • Generate captions in under 60 seconds
  • Advanced noise reduction technology
  • Multi-speaker detection and labeling
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100+ Animated Subtitle Templates

Choose from extensive professionally-designed subtitle templates with dynamic animations. Our auto caption video feature includes trendy styles that make your automatic subtitles stand out on any platform.
Feature Highlights
  • 100+ ready-to-use templates
  • Customizable animations and transitions
  • Brand color and font matching
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Smart Text Editing & Customization

Easily edit and refine your automatic subtitles with powerful find-and-replace functionality. Our auto caption generator allows you to quickly update terminology, correct names, and adjust timing across your entire video project.
Feature Highlights
  • Bulk find and replace across all captions
  • Timeline-based precision editing
  • Real-time preview as you edit
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Auto Translate Subtitles - 20+ Languages

Reach global audiences by using our automatic subtitle generator to auto translate subtitles into over 20 languages. Generate subtitles from video and instantly translate to expand your viewer base worldwide.
Feature Highlights
  • Auto translate subtitles in 20+ languages
  • Culturally-adapted localized templates
  • Right-to-left text support (Arabic, Hebrew)
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The Perfect Auto Subtitle Generator for Every Creator

Whether you're a content creator, educator, marketer, or podcaster, our free automatic subtitle generator streamlines your workflow. Auto generate captions that match your specific needs and automatically add subtitles to video with professional results.

Social Media Content

Content Creators & Influencers

Social media creators, YouTubers, and TikTokers who need to auto caption video content quickly to maintain consistent posting schedules and maximize reach across platforms.

Key Benefits:
  • Create subtitles for video free in under 2 minutes
  • Boost engagement rates by 25-40%
  • Automatically add subtitles to video for accessibility
  • Save 10+ hours weekly on manual transcription
2M+ creators trust our auto caption generator
Social Media Content

Educators & Course Creators

Teachers, online instructors, and training professionals who need to generate subtitles from video to create accessible educational content that meets compliance standards and supports diverse learners.

Key Benefits:
  • Meet ADA and WCAG accessibility requirements
  • Support visual and auditory learning styles
  • Auto translate subtitles for multilingual students
  • Improve comprehension and retention rates
500K+ educational videos with auto captions
Social Media Content

Marketing Teams & Businesses

Marketing professionals, corporate trainers, and business communicators who use our automatic subtitle generator to create polished presentations, product demos, and training videos with professional automatic subtitles.

Key Benefits:
  • Professional brand-consistent auto captions
  • Auto generate subtitles from video for global teams
  • Reduce video production costs by 60%
  • Fast turnaround for tight deadlines
10K+ companies trust us
Social Media Content

Podcasters & Audio Creators

Podcast hosts and audio content creators who want to auto caption video versions of their shows. Our free automatic subtitle generator helps repurpose audio content for YouTube, social media, and video platforms.

Key Benefits:
  • Expand reach to video platforms effortlessly
  • Generate subtitles from video with speaker labels
  • Auto translate subtitles for international audiences
  • Automatically add subtitles to video versions
50K+ podcasts enhanced with auto captions

How To Auto Generate Captions in 3 Simple Steps

Filmora automatic subtitle generator makes it effortless to create subtitles for video free. Whether you're on desktop or mobile, learn how to automatically add subtitles to video in minutes with no technical expertise required.

Step 1. Upload Your Video or Audio
Import any video or audio file to start using the auto caption generator. Supports all popular formats including MP4, MOV, AVI, MP3, and WAV.
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Step 2. Auto Generate Subtitles Instantly
Click the Auto Caption button and let our automatic subtitle generator create accurate subtitles in seconds. The AI analyzes your audio and generates perfectly synchronized captions.
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Step 3. Customize and Export
Edit text, choose from 100+ templates, auto translate subtitles if needed, and export your video with burned-in captions or as a separate subtitle file (SRT, VTT).
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  • Step 1: Upload Your Video or Audio
    Import any video or audio file to start using the auto caption generator. Supports all popular formats including MP4, MOV, AVI, MP3, and WAV.
  • Step 2: Auto Generate Subtitles Instantly
    Click the Auto Caption button and let our automatic subtitle generator create accurate subtitles in seconds. The AI analyzes your audio and generates perfectly synchronized captions.
  • Step 3: Customize and Export
    Edit text, choose from 100+ templates, auto translate subtitles if needed, and export your video with burned-in captions or as a separate subtitle file (SRT, VTT).

Why Creators Love Our Auto Caption Generator

Join thousands of satisfied creators, educators, and professionals who trust our free automatic subtitle generator for their video content. See how our auto caption video feature transforms their workflow and results.

Sarah Johnson
Sarah Johnson
TikTok Content Creator
@SarahCreates

"This auto subtitle generator is absolutely incredible! I can now create subtitles for video free in under 2 minutes. The automatic subtitles are so accurate I barely need to edit. My view count has skyrocketed since I started using auto captions on every video!"

Result: 35% more views per video
Dr. Michael Chen
Dr. Michael Chen
Online Course Instructor
@DrChenTeaches

"As an educator, being able to automatically add subtitles to video has been transformative for my students. I can auto translate subtitles into multiple languages, making my courses truly accessible. The free automatic subtitle generator saves me at least 15 hours per course!"

Result: 100% accessibility compliance
Emma Rodriguez
Emma Rodriguez
Marketing Director
@TechBrandMarketing

"Our team relies on this auto caption generator for all product demos and webinars. Being able to auto generate captions that match our brand style is fantastic. The ability to automatically add subtitles to video online free has cut our production budget in half!"

Result: 50% cost reduction
Alex Thompson
Alex Thompson
Podcast Host
@TheDailyTalkShow

"Being able to generate subtitles from video versions of my podcast has opened up entirely new platforms for distribution. This automatic subtitle generator handles multiple speakers perfectly, and I can auto translate subtitles to reach international listeners. Game-changer!"

Result: 400% increase in video platform reach
Lisa Park
Lisa Park
L&D Manager
@GlobalCorpTraining

"The bulk editing feature in this auto caption video tool is brilliant! I can update training materials across hundreds of videos in minutes. Being able to create subtitles for video free helps us stay within budget while maintaining high quality training content."

Result: 85% faster content updates
David Kim
David Kim
YouTuber - 500K Subscribers
@TechReviewsWithDavid

"I've tried many tools to auto generate subtitles from video, but this free automatic subtitle generator is by far the best. The customization options are endless, and being able to auto caption video with animated templates that match my brand is perfect for YouTube!"

Result: Professional look with zero effort

Based on 12,847+ verified user reviews

"Consistently rated as the most accurate and user-friendly auto caption generator and automatic subtitle generator available"
4.9/5

Frequently Asked Questions About Auto Caption Generator

An auto caption generator is an AI-powered tool that automatically generates subtitles from video audio using advanced speech recognition technology. Our automatic subtitle generator analyzes your video's audio track and creates synchronized captions with 95% accuracy, allowing you to automatically add subtitles to video online free in seconds. Simply upload your video, and the auto subtitle generator creates perfectly-timed captions that you can customize and export.
Yes. With Filmora's auto caption feature, you can easily customize the font and color of the generated captions.
Absolutely! Our automatic subtitle generator supports 20+ languages, allowing you to auto translate subtitles with a single click. After you generate subtitles from video in the original language, you can instantly translate them to Spanish, French, German, Chinese, Japanese, and many more languages. This makes it easy to reach global audiences and automatically add subtitles to video in multiple languages for international distribution.
Our auto caption generator delivers 95% accuracy for clear audio with minimal background noise. The automatic subtitles are generated using advanced AI speech recognition that handles multiple speakers, accents, and technical terminology. While you can edit any auto-generated captions to achieve 100% perfection, most users find they need only minor adjustments. The auto subtitle generator continuously improves through machine learning, making it one of the most accurate tools to generate subtitles from video available today.
Our free automatic subtitle generator supports all major video and audio formats including MP4, MOV, AVI, MKV, WMV, FLV, MP3, WAV, M4A, and more. You can upload videos from any device or platform, and the auto caption generator will process them to automatically add subtitles to video regardless of format. You can also export your captioned videos in various formats optimized for YouTube, TikTok, Instagram, Facebook, and other social media platforms.
Yes! After you auto generate captions, you have complete control over customization. Choose from 100+ preset templates, adjust fonts, colors, sizes, backgrounds, animations, and positioning. You can match your brand style, apply different styles to multiple speakers, add shadows and outlines, and even include animated effects. The auto caption video tool makes it easy to create subtitles for video free that look professional and match your unique style, whether for business, education, or social media content.