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3 Free Auto Subtitle Generators for Captioning Your Videos Automatically
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3 Free Auto Subtitle Generators for Captioning Your Videos Automatically

Author by Rocabella

Updated on July 14, 2023

Both YouTube and Facebook have built-in audio subtitle generator. Don’t know how to enable the function? Don’t worry! This post will show you how. Besides, we also recommend an online tool to create auto subtitles for free.

How to Create Subtitles for a Video Automatically

Q: I have an MP4 file on my computer. How do I create "automatic" subtitles based on the video's sound, for free? (sound-to-text) I don't want to type up the subtitles by hand, I want sound-to-text to create them automatically.

A: Adding subtiles to your video can help you reach a wider audience as not only do they make your content more accessible, but they come in handy in public places where people have to mute your phone. But typing subtitles word by word manually takes much time. Fortunately, there are some auto subtitle generators. And here we'll share with you 3 of the best free auto subtitle generators to help caption video more easily.

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Part 1 - YouTube Automatic Captions

YouTube can auto generate subtitles for the videos you uploaded using its speech recognition technology. Currently, the automatic subtitles feature is available in English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian, and Spanish. If your first language in the above list, follow the steps below to create subtitles for a video automatically.

Preparation for Auto SubtitlePreparation for Auto Subtitle

Step 1. Upload your video to YouTube that is in compliance with YouTube specs.

Step 2. Go to your Video Manager,

Step 3. Find the video for which you want to create auto subtitle. Hover your mouse over the file and click the Details icon under the video title.

YouTube Automatic Subtitle GeneratorYouTube Automatic Subtitle Generator

Step 4. On the new page, click Show More and move download to locate the Language and captions certification. Select a target language here.

Step 5. Then on the right-side panel, click on the Subtitles tab.

Step 6. In the Subtitle window, click Auto-sync to start the auto subtitle generating process in YouTube.

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Part 2 - Facebook Automatic Subtitles

Similar to YouTube automatic captions, Facebook has also launched a free, automatic video captioning tool for Facebook Page video. But it's currently only available in US English. Page admin is able to automatically generate captions and proofread them. Facebook allows users to create auto subtitles before uploading a video and for uploaded videos. Here I make an example of how to create auto subtitles before you upload a video. For uploaded videos, you just need to click the edit button and follow the below steps to add auto subs to them.

Automatic Subtitling for Facebook VideoAutomatic Subtitling for Facebook Video

Step 1. Sign in to your Facebook account and click the "Photo/Video" button on the "Create Post" panel. Then select the video you want to upload.

Step 2. Select the "Subtitles & Captions (CC) option on the right of the new window.

Step 3. Wait for the upload process to finish, you can see the progress bar on the bottom left.

Step 4. Now you can click the "Autogenerate" button on the top to create auto subs.

Step 5. Review and edit the generated captions.

Step 6. Finish the rest of the video uploading process.

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Part 3 - Online Automatic Subtitle Generator— is an online free automatic subtitle generator, which provides 11 languages for you to choose. But free account users are limited to 10 minutes for speech-to-text. And it left watermarks. Here are the simple steps:

Online Automatic Subtitle GeneratorOnline Automatic Subtitle Generator

Step 1. Visit, and then upload the source video;

Step 2. Select a needed language;

Step 3. Hit the Transcribe Now button.

It is an easy task to create auto subtitles with a handy automatic subtitle generator. But the final result may vary due to mispronunciations, accents, dialects, multiple speakers, poor sound quality, complex audio or background noise.

If you have a better subtitle generator recommendations, welcome to contact us. Hope this article does help you and you are free to share it with more people!

How to Add Subtitles to Your Videos in Few Clicks

How to Add Subtitles to Your Videos in Few Clicks

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