Your Ultrafast Subtitle Tool

Wondershare UniConverter

  • Add subtitles to MP4, MKV, AVI, MTS and any other media file.
  • Support multiple audio track and subtitles.
  • Edit subtitles to your like and freely switch on/off subtitles.
  • Download online videos from YouTube and other 10,000 sites.
  • All-in-one video tool: video converter, video editor, DVD burner and more.
add subtitles to video

Top 4 Ways to Free Add Subtitles to Video Online

by Kayla Morrison • 2020-06-23 21:05:15 • Proven solutions

Subtitles are those captions that appear at the bottom of the screen aimed at translating or transcribing a movie or video. It is important to add subtitles to your videos so that the viewer can understand and get the right terminologies used in the video. Also, it helps people with poor hearing to understand the content of the video since they can read. If your video does not have subtitles, you might consider adding them using a third party software or using online tools. In the next part below we'll discuss 4 popular online tools that you can use to add subtitles freely.

Part 1. Best Subtitle Tool to Embed Subtitles in Video

best subtitle tool Wondershare UniConverter - Best Subtitle Tool MOV Mac/Windows (Catalina Included)

wondershare uniconverter
  • Add subtitles from local PC or Internet online.
  • Extract subtitles from MP4, MKV, DVD and any video file in .srt, .ssa and .ass.
  • Edit subtitles by adjusting font, font color, font size, transparency, position and more.
  • Support multiple audio track and subtitles and freely switch on/off subtitles.
  • Convert video to MP4, MOV, MKV, AVI and over 1000 video/audio formats with subtitles.
  • Burn and customize your video to DVD with free DVD menu templates.
  • Download or record videos from 10,000+ video sharing sites.
  • Versatile toolbox includes GIF maker, image converter, video compressor, screen recorder, CD burner, fix video metadata, etc.
  • Supported OS: Windows 10/8/7/XP/Vista, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
safe mov video converter free downloadSecurity Verified. 5,481,347 people have downloaded it.

Part 2. How to Add Subtitles to Video Online with 4 Free Subtitle Tools

1. EZGIF is a user-friendly online tool that allows you to put subtitles to video online. This online tool allows you to upload a video file from either your local drive or download it online by pasting the URL of the video. An advantage of using website is that it supports different video formats like MP4, MPEG, FLV, MOV, 3GP, WebM and AVI just to name a few. Moreover, this website allows you to set start and stop time of the subtitle tracks many times. Also, you should put in mind that this website supports files that less than 120MB.

How to Add Subtitles to Video Online Using EZGIF

Step 1. Visit EZGIF website on your browser.

Step 2. Next go to upload file section and click on Choose File button and then click on Upload File button

Step 3. You will then choose the subtitle file to upload by click on Add Subtitles

Step 4. The online tool will merge subtitles with video online and thereafter you can download the file.


Kapwing website allows you do a number of editing to your videos such as adding filters, resizing and also merging subtitles with video online. With Kapwing you can add subtitles and view them in real time. to upload files to this site, you can import from local folder or online video sharing sites.

How to Add Subtitles to Videos Using Kapwing

Step 1. Go to Kapwing website and click Add Subtitles and then click on Upload files.

Step 2. Now Add subtitles to your video and then edit them under subtitle options. You will be able to adjust font, text colour and size.

Step 3. When everything is set, click on Create Video and then download your files.

3. Subtitle horse

You can also use Subtitle horse online tool to put subtitles on video easily. This online tool enables you to import files by pasting the video URL from sites like YouTube, Facebook and others. It supports video formats like MP4, OGV, WEBM and FLV. Moreover, this website supports real-time editing of subtitles. You can set the start and end point of your video several times. The subtitle text is also displayed at the right side of the window thus becoming easier to merge subtitles with the video. With Subtitle horse its user interface might seem archaic but you can export file or save them on your local folder.

How to use Subtitle Horse to Add Subtitles to Video Online

Step 1. Visit subtitle website and paste the URL of the video that you want to add subtitles and then click on Submit.

Step 2. On the new window click on File and then click on Open Subtitle File to upload the subtitle.

Step 3. You can then edit the start and end point on the right side of the window once you have uploaded the subtitles.

Step 4. Once you done merging subtitles with video online, click on File and then Save and Exit button. Save the file as preferred and it will be downloaded to your computer.

4. Substital

Substital is quite a different online tool that can put subtitles to videos online. This is a an add on that supports Chrome and Firefox. With this add on you can add subtitles to YouTube videos. It also supports other video sites like Hulu, Netflix, Dailymotion, Vimeo, Blip, Break and much more. Also, you can synchronize subtitles and select subtitles with this add on. A challenge with this plug-in is that it will fail to detect your videos thus becoming difficult to add subtitle to your video.

How to Add Subtitles to Videos using Substital

Step 1. Visit Substital website and install the add-on either on your Chrome or Firefox browser.

Step 2. On your browser click on a blue icon at the top right on the sub menu and choose the video that you want to add subtitles.

Step 2. From there, you can then search and select the subtitles from. These add on supports all languages thus you can search for the preferred language.

Step 3. After that you can adjust the settings of the subtitle to match the video.

When you have completed adding the subtitles you can then save your file and store on your computer. At this point you know have a solution on how to add subtitles to videos online for Free.


    To Conclude, you can use a website that allows you to upload videos from your local computer just like Kapwing. For online videos, all these four online tools will come in handy since they are supporting pasting of URL. Moreover, with these four online tools, you can upload subtitles and the start and end point. You can also preview the editing in real time. Although Substital is an add-on, it equally performs well like Subtitle horse, Kapwing and tools with an added advantage of searching subtitles in all languages.

Recommended Bundle & Save for Video Fans

video editor



Filmora Video Editor

A powerful and intuitive video editing experience

video converter




Convert, download, edit, burn videos in 1000 formats, and more.

video converter and editor

$97.95 (Lifetime License)

Kayla Morrison

Kayla Morrison

staff Editor

0 Comment(s)
Resource > Add Subtitles > Top 4 Ways to Free Add Subtitles to Video Online

All Topics