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Top Free Online Subtitle Editors in 2024: Create Perfect Captions

The role of subtitles in videos cannot be overlooked. They help people with hearing difficulties to watch videos and be fully engaged. They also make it easier to watch and understand videos in different languages. Online subtitle editors help in creating quality and accurate subtitles for your videos. Since no download is needed, subtitles online editors are easy to use and effective. In this article, we will explore the top free online subtitle generator and recommend an alternative desktop version for better-quality results.

In this article
  1. Part 1: Top 10 Free Online Subtitle Editors: No Downloads Needed
  2. Part 2: Best Subtitle Editor Desktop Alternative: UniConverter
  3. Part 3: How to Add and Edit Subtitles with UniConverter

Part 1: Top 10 Free Online Subtitle Editors: No Downloads Needed

The process of creating and editing subtitles may seem complex, especially for beginners. However, online video subtitle creators make the process easier and faster. We have curated a list of 10 free subtitles SRT editor online tools to get you started.

In this article
  1. Checksub
  2. Typito
  3. Happyscribe
  4. Open Subtitle Editor
  5. Speechtext AI
  6. Jubler
  7. Flixier
  8. Subtitle Workshop
  9. Subtitle Edit
  10. Clideo


Checksub is a popular free online subtitle generator that produces instant results. It is a great choice for anyone interested in a YouTube subtitle generator online free tool. With Checksun, you get a tool that transcribes all kinds of video projects. It seamlessly syncs your speech and text using machine-learning technology, ensuring a high accuracy rate. You can also burn your subtitles into your video and personalize the style to your liking.


Key features:

  • Machine translation for over 128 languages
  • Automatic transcription
  • Easy-to-use subtitle editor
  • Smart timestamp synchronization


Typito is a professional online video subtitle maker. It does not require any downloading or installing but comes with advanced subtitle capabilities. Seamlessly add subtitles to your videos with just a few clicks.


Key features:

  • You can change the style, font, and position of subtitles to complement your branding
  • Automatically add translated video subtitles in multiple languages
  • Choose from pre-animated themes the style you want for your subtitles.
  • Collaborate with team members on a shared workspace to create videos.
  • Utilize additional video editing tools to trim videos, crop, cut, resize, and more.


Happyscribe is a simple free online subtitle generator. Although a relatively simple tool, it supports VTT and SRT file formats and provides subtitles with 97% accuracy. The online subtitle editor also comes with a quick processing time.


Key Features:

  • Easy-to-use interface
  • Multilingual
  • Supports integration with Google Drive
  • Affordable premium pricing plans

4.Open Subtitle Editor

This is an open-source SRT editor online tool. It uses .NET Framework version 4 or later to run. Since Open Subtitle Editor relies on Windows Media Player to work, it is only compatible with Windows operating systems. Some of the subtitle editing tasks supported by the online tool include adding and removing subtitles, re-syncing, translation, and editing of the existing text.

open subtitle editor

Key features:

  • Tools for editing the text of subtitles
  • Allows to create subtitles from scratch
  • Option to resync subtitles

5.Speechtext AI

Speechtext allows you to quickly convert speech to text, saving you the amount of time you would have spent transcribing audio or paying for a transcription service. By speaking directly into your microphone, will convert your spoken words into written subtitles.

speechtext ai

Key Features:

  • AI Speech Recognition
  • Highly accurate results
  • Multilingual support


Jubler is an open-source online video subtitle editor licensed under the GPL. The platform requires the latest version of the Java Runtime Environment but works great for most video projects. With a built-in optimizing algorithm, it quickly fixes timing inconsistencies and handles frame rate conversions.


Key features:

  • Can change the color of the subtitles
  • Translation mode is available
  • Automatic updates


Flixier is an online video subtitle generator that makes adding captions to video footage quick and easy. With this tool, you can edit subtitles directly in your browser in a wide range of languages as desired. The platform also allows you to make real-time changes and preview subtitles before downloading them.


Key Features:

  • Intuitive and powerful user interface
  • Supports over 20 languages
  • Text-to-speech feature.
  • No registration is required

8.Subtitle Workshop

Subtitle Workshop is an open-source, GPL-licensed subtitle creator online tool. It comes with a user-friendly interface in multiple languages. In addition to subtitle creation, it also supports timing and text manipulation. You can quickly set durations, check your spelling, adjust lines, and automate frames-per-second changes. It also allows you to detect, mark, and fix text or timing errors with a comprehensive set of manual and automatic tools.

subtitle workshop

Key features:

  • Manual/automatic detection and fixing of timing and text errors
  • Supports over 60 subtitle formats
  • Spell checking
  • Supports style and color tags
  • Customizable shortcuts

9.Subtitle Edit

Subtitle Edit is a free, open-source subtitle maker online tool. It allows you to edit SRT file online with ease in various ways. With this tool, you can convert between hundreds of subtitle formats and automatically sync them with video. It also allows you to rip subtitles from DVDs, create new ones, and use auto-translation.

subtitle edit

Key features:

  • Supports more than 280 formats
  • Automatic translations
  • Easy subtitle synchronization


Clideo is an easy-to-use video editor, which allows you to add SRT to a video in only a few clicks. You can also go ahead to edit the SRT files as needed.


Key Features

  • An easy-to-use platform
  • Features a powerful video editor
  • Quick addition of subtitles to any video
  • Allows you to edit subtitle’s fonts, colors, and style

Part 2: Best Subtitle Editor Desktop Alternative: UniConverter

While free online subtitle generators are great, you will often need software you can rely on. With the online platform, you need to upload your video add the subtitles, and then download it for your use. This can be hectic and time-consuming. However, desktop software allows you to do everything with less effort and time. 


When looking for reliable software for adding subtitles to your videos, UniConverter is a great option. The video converter software allows you to seamlessly add and edit subtitles for your video. With an additional 20+ lightweight features, you can do a lot more with your videos. The software also allows you to adjust font color, size, position, and transparency. You position the subtitles to appear at the bottom, middle, or top of the playback screen as needed.

Key Features:

  • Import and edit local subtitles effortlessly
  • Customize your subtitles' font size, color, position, and more
  • Position your subtitles on the desired screen location
  • Convert your subtitle video to MP4, AVI, MOV, FLV, VOB, and more

Part 3: How to Add and Edit Subtitles with UniConverter

Adding and editing subtitles with UniConverter is simple. The software allows you to upload your videos and add subtitles that match your style. Here are the key steps to follow:

Step 1 Add your video file to UniConverter

Once you have downloaded and installed UniConverter on your PC, click Editor on the Home interface to upload your video file. Click Subtitle to select the video file from your local storage. The video will start playing automatically, and you may need to pause to start adding subtitles.

launch uniconverter
Step 2 Choose the Option to Add Subtitles

Click the drop-down arrow on the subtitle tab. The default of this drop-down arrow is No Subtitle, but you can choose to add subtitles to the video from your local storage. You have the option to keep all subtitle tracks, embed subtitles, and export subtitles in the formats .ssa, .srt, or .ass files.

video added
Step 3 Add and edit the subtitle

Once you have imported a locally saved subtitle to your video, you can further edit it to match your style. You adjust the font, text color, outline width, background color, position, and transparency as needed.

edit subtitles
Step 4 Preview the video file (Optional).

Ensure that everything in your video is clean and polished before converting and saving it. Hover the mouse cursor on the thumbnail and click on the Play icon. Close the window once you are satisfied with the preview.

preview video
Step 5 Export Edited Video

On the Output Format menu, click the format you want to export your edited video to. Make sure to set the output resolution and select a folder path or destination for your video. Click Start All to save the new video with edited subtitle tracks.

export video


Free online subtitle editors are a great choice when you want to add and edit your video subtitles. Although they are free and easy to use, they may not provide the functionality that you need at the time. With software like UniConverter, you get more flexibility in adding subtitles to your video. You also save time and effort while producing quality results.

Takashi Jul 03, 24
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