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Add subtitles to video.

Easiest subtitling ever.

Add subtitles and captions to video automatically. Boost your video engagement and repurpose your content like a Pro with AI transcription.

How it works • 8:48
Add subtitles to video

Video caption generator.

No need for big budgets or to spend time on training.

Generate open or closed captions for videos automatically, in a matter of seconds. Subly will do the heavy lifting, so you can focus on making subtitle edits and styling your video, ready to share faster with your audience. You wouldn’t share a video without image or sound. So why leave out the text?

Subtitles can help to get the attention of those with sound off, deaf or hard of hearing. Making sure they can understand your content, whilst your engagement soars too.

How to add subtitles to a video?

Add subtitles and captions in 31 languages and dialects with finer details and styling sorted in a few clicks.

Over 150,000 team members are already using it.

Social media and marketing teams use Subly to boost video content engagement and grow their audience with more views.
Get started today

Try full features for 7 days.

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Subtitle. Brand. Trim. Repurpose for social media.

Subtitles should be part of every video content workflow. But it really doesn't need to take much time or knowledge of video editing tools.

We made it simple so you can get accessible content for anyone with sound turned off, without needing huge budgets or years of training.

Generate subtitles online

Automatic subtittle generator.

Generate subtitles automatically and accurately.

Upload your files online and get subtitles made in minutes. Our AI will generate transcription for you, so you still have control to edit the style and content of your video but don’t have to be delayed by a human.

Quickly adjust the timeline or find and replace transcription words in the subtitle editor.

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Try full features for 7 days.

Add text to your video. Brand it with your logo.

In a few simple steps change the colour, font and position of your subtitles. Once you’ve made the changes once, save your template to use time and time again. Capture more attention and show your brand.

  • Change the font, colour and position of subtitles

  • Add your logo, text and brand colours

  • Save your style as a template

Try it now
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Try full features for 7 days.

Add text to video
Create clips for social

Create clips for social. Trim your video with Subly Snippets.  

Cut your videos and create snippets for YouTube Shorts, Facebook, Instagram, YouTube, TikTok... or resize your video in one click for different social media platforms. No need to use other tools, keep your workflow simple and repurpose for different channels. Help those with sound off to watch your videos in full.

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My team love using Subly to save time and repurpose my YouTube content for different platforms.
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Ali Abdaal
Try it now
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Try full features for 7 days.

Easy to use. Loved by teams around the world.

Subtitles really don’t have to be complicated. Subly is fast, easy-to-use and you can try all the features for 7 days.

Get subtitles added to your video (open captions) or choose different files like SRT (subtitle file) or VTT (closed captions) to use alongside with your video. Even repurpose the content from your video into transcripts with a TXT generated every time you upload a video or audio.

Subly use case

Marketing & social media teams.

Subtitle video or audio content online, helping users to engage with videos and to improve global accessibility.

Subly use case

Transcription & translation teams.

Automate their transcription and translation workflows with AI speech-to-text recogntion. Get more content out the door faster.

E-learning & training development.

Make content accessible and maximise their course watch time.

Subly use case
Subly use case

Production & distribution teams.

Maximise production workflows with automatic subtiling and translation.

Event & internal comm teams.

Make the local - global to increase engagement & reach.

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Why add subtitles to video?

By adding subtitles to your videos, you’ll capture the attention of those watching without sound or who are deaf or hard of hearing. On Facebook alone 85% of all video content is watched without sound.

Want to stop the scroll? Add subtitles to make your video content accessible to more people. Reach more of your audience and give your content the views it deserves.

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Social channels

Resize your videos with captions for different social platforms. Make your content ready to use on multiple channels instead of just one and increase your reach.

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Internal comms

Reach the whole of your internal team and increase engagement with subtitles that increase the likelihood that your team watches until the end.

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Paid Ads

Increase engagement with your paid efforts by adding subtitles and getting the attention of those scrolling with sound off.

Bring video content closer to your audience.

Want to get started with automatic caption video editor? Discover the other tools to pair with the caption generator to maximise your content.

Make your upload, video editing, styling and download simple. Repurpose all the content you’re already using at once, with different file types and languages to really maximise your content and reach new audiences.

Translate subtitles to 70+ languages.

Make your video or audio content accessible to people all over the world.

  • Generate separate closed caption files for all translated languages.

  • Up to 98% accuracy in speech recognition and it keeps improving with each passing day.

  • Pick between the subtitle mode for easy and accurate time-stamping, and plain text mode for effortless repurposing of your transcript.

Subtitle translator
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Convert audio to video.

Share of traffic from video-based platforms.

  • Easily and automatically turn audio files into captivating videos.

  • Grow your follower base by recycling your most engaging contentin new formats.

  • Increase traffic, views, and authority by making your content more accessible.

Convert audio to video
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Speech to text - AI transcription.

Convert video and audio to text and get more out of your content with speech recognition.

  • Save hours of content creation work with speech-to-text transcription.

  • Repurpose audio content as social media posts.

  • Get audio or video transcripts in different formats: TXT, SRT and VTT.

Speech to text
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API Transcription.

Better efficiency with API.

  • Increase your business’s efficiency.

  • Export in multiple different sizes.

  • Seamless and secure experience for your users or internal teams.

Transcription API
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Video editor.

Make quick edits online.

  • Add text to your videos.

  • Cut your videos and export them for further editing.

  • Resize for social media channels with different aspect ratio options.

Video editor
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How it works • 6:08

Why users love  Subly captions?

Try Subly Now

Try full features for 7 days.

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Captions used to take 2 hours and now it takes 2 minutes. Subly has saved me countless hours.
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Lewis Burgess
Content Creator, Arrow Twelve


What video file types can I subtitle?

We currently support .mp4 or .mov file types. You can even upload your audio file (.mp3), add an image to it and turn it into a powerful .mp4 file with subtitles.

How to download subtitles?

Once you've finished editing your video or audio, simply click the download button top right and select the sizes and formats (MP4, MOV, SRT, VTT or TXT) you need. Then click download, your files will download to your device or to Google Drive.

How to generate captions?

Generate captions in 4 easy steps:
1. Upload a video and select the spoken language for accurate subtitles, or upload your SRT file.
2. Automatically generate subtitles or captions and make adjustments in the subtitle editor.
3. Change the style of subtitles, font, size, background, or adjust timestamps on the timeline.
4. Download subtitles burnt into the video (MP4, MOV) or in TXT, SRT, VTT format.

What languages do you support?

You can add subtitles to video in the below languages and dialects. Also, you can translate your subtitles.

  • Arabic Gulf
  • Arabic Modern Standard
  • Brazilian Portuguese
  • Canadian French
  • Chinese Mandarin-Mainland
  • Dutch
  • English GB
  • English US
  • English AU
  • English IN
  • English IE
  • English ZA
  • English NZ
  • Farsi
  • French
  • German
  • Hebrew
  • Indian Hindi
  • Indonesian
  • Italian
  • Japanese
  • Korean
  • Malay
  • Portuguese
  • Russian
  • Spanish
  • Swiss German
  • Tamil
  • Telugu
  • Turkish
  • US Spanish

What does SRT stand for?

SRT is short for SubRip Subtitle format. It got its name from a DVD-ripping software that was used to extract the subtitles and their timings from DVDs and other types of videos. It’s a universal subtitle format which contains the captions, sequence numbers, and timecode.

How to export SRT or VTT files?

When you've finished with your editing you simply hit the download button and select the types of files you'd like to download, including VTT and SRT as options.

How to Merge SRT with MP4?

If you already have an SRT file, you can add this to a video (MOV or MP4) that you have uploaded. Once uploaded you can edit if needed, or just use it as it is. Just look for the tool icon in the video editor screen to find the option to upload your own SRT file. Once you download your video, it will have your SRT file burned into it unless you choose a different download option.

How to change timestamps?

You can change the timestamps in the subtitles editor or on the timeline. You can add, edit and delete timestamps too.

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“Whether you’re a start-up or a Fortune 500, we’d love to chat about our products and make a personalised plan that fits your business.”
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