Auto Caption Generator Free Online
The best Online Free Auto Caption Generator. Use AI to generate the most accurate auto captions and provide professional long video & movie subtitle services.
AI Subtitle Generation & Translation.
Easily generate subtitles and add accurate subtitle content to videos through AI.
Provide multi-language subtitle translation.
Modification of Subtitle Font and Style.
Customize video titles to improve user experience.
Hint at the quality of your video content by customizing subtitle font color, style, size, and opacity.
Export Videos with Subtitles.
You can easily export high-definition video content with subtitles through subtitle editing and video clipping, and share it with one click.
How to Generate Subtitles For a Video Automatically
1. Upload Audio and Video Files or Upload via Youtube URL
Auto Caption Generator has no file size limit for uploading. We support a variety of different formats (mp4, wav, mp3, avi, flv, mov, mkv, etc.) and any resolution.
2. Video Language Configuration and Free Video Translation
Choose the original language of your video and the language to be translated. We provide corresponding configurations to make it easier for you to generate subtitles.
3. Edit Subtitles
After waiting for the subtitles to be generated, you can go to the details page to edit the subtitles. You can not only edit the time of subtitle generation, subtitle style, color, size, font, etc, but also make corresponding changes to the size and resolution of the video.
4. Export Videos with Subtitles
You can download videos with embedded subtitles, including subtitle files in .srt, .ass, .vtt or .txt formats. You can also download subtitle files for free.
Auto Captions Features
AI Caption Generator
Easily auto-generate and sync subtitles with AI Caption Generator. Customize fonts, colors, and styles to suit your video's creative needs, and add subtitles to videos online for free.
AI Subtitle Translator
Quickly translate subtitles into multiple languages
Audio to Text Transcription
Transform audio files into accurate, readable text with AI. Generate transcripts, subtitles, or notes suitable for spoken content. You can download subtitle files instantly, saving time.
Add a Text to a Video
Use auto caption generator to easily add text to videos online, enhance your videos with accurate titles or subtitles. In addition, you can customize the font, color, style and size of subtitles.
Auto Transcribe Audio
Auto Translate Video to Text
AutoCaption supports video translation in more than 150 languages
We are committed to providing accurate and convenient video translation services. The generation and translation of subtitles for long videos such as movies, documentaries, and teaching videos are our specialty.
AI-based video translation and subtitle generation can increase the accuracy of subtitles to more than 98%.
Custom Subtitles with Your Video
You can customize subtitles through the subtitle editing page.
Add, delete, modify, and add new subtitles with one click. You can also adjust the time when your subtitles appear and end precisely.
Video Enhancement
Multiple video resolutions for custom selection.
Video background color selection
Add a custom logo to your video for free
Video title that can be adjusted up and down
Easily Modify and Generate Auto Captions
AutoCaption provides accurate automatic caption generation, and through the timeline, you can easily split clips, rearrange subtitles, modify subtitles, etc.
Subtitles can be dragged on the timeline for quick modification and repositioning.
All operations are very simple and carried out on one editor interface. Easysub allows you to easily and accurately obtain and modify automatic subtitles.
Youtube Auto Caption Generator
You can upload YouTube videos and generate and translate subtitles with one click through our URL.
We provide more efficient and accurate subtitle content, as well as more translation languages.
Movie Subtitles, Long Video Subtitles Focused
No matter the size, resolution, or length of your video, we provide subtitle generation and translation services.
Our AI algorithm is dedicated to solving the subtitle generation problem for long videos including movies, instructional videos, barrier-free videos, etc.
Why need Auto Caption Generator Serivce
Improve accessibility
Auto captions provide hearing-impaired people with a way to access video content, ensuring equal information transmission. At the same time, in public places or silent scenes (such as offices and public transportation), users can understand the content through subtitles without relying on audio, expanding the application scenarios of videos.
Enhanced viewing experience
Subtitles can help viewers understand complex terms, professional terms or conversations with accents more accurately, reducing information misunderstandings. Studies have shown that videos with subtitles can improve viewers' attention and information retention, especially in educational and popular science content.
Promote international communication
By automatically translating and generating multilingual subtitles, videos can quickly reach global audiences and break down language barriers. For example, adding English, Spanish and other subtitles to Chinese videos can attract overseas audiences and help content creators expand into the international market.
Optimize search and algorithm recommendations
Subtitle text provides search engines and platform algorithms with indexable keywords, significantly improving the search ranking and exposure of videos. For example, platforms such as YouTube recommend related videos by analyzing subtitle content, increasing traffic and user stickiness, while helping to cover long-tail keywords.
Select the price plan that suits you best.
Auto Captions helps video creators around the world
We are committed to helping video creators around the world. You need to use our professional AI subtitle generation algorithm to generate accurate subtitles more quickly. Our multilingual subtitles will enhance the globalization of your videos.
Online
YouTube Captions
Free
TikTok Captions
Best
Facebook Captions
Top #1 Translate video to text
Elevate your content game with the ultimate tool designed for modern creators! As the #1 video-to-text converter tailored for influencers, this innovative platform transforms your video content into accurate, editable text in seconds. Perfect for crafting captions, generating SEO-friendly blog posts, repurposing clips into scripts, or boosting accessibility with subtitles—all while maintaining your unique voice.
Powered by cutting-edge AI, it ensures 99% accuracy, supports multiple languages, and adapts to niche-specific jargon, from beauty tutorials to tech reviews. Seamlessly export transcripts to your favorite editing tools or share directly on social media. Save hours of manual work, enhance engagement, and reach wider audiences effortlessly.
Join top influencers worldwide who trust AutoCaptions to streamline workflows, maximize content value, and stay ahead in the digital race. Your creativity, amplified—one word at a time.
FAQs
How to add subtitles to a video?
You can quickly add subtitles to a video through AI algorithms, including downloading subtitle files and exporting videos with subtitles.
What are the steps to create subtitles quickly?
Upload your video: Import the file to your chosen tool.
Auto-generate: Use the platform’s AI to transcribe audio.
Edit & sync: Adjust text accuracy and timing manually (if needed).
Export: Download subtitles in formats like SRT, VTT, or embedded in the video.
Can I generate subtitles in multiple languages?
You can generate subtitles in multiple languages. We support free subtitle generation and translation in more than 150 languages.
