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Add subtitles & captions to video.

Simply simplest subtitling.

Create automatic subtitles and captions for your video online. Boost your video engagement and repurpose your content like a Pro with AI speech recognition.

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 with, in a matter of minutes. Subly's AI speech recognition 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?

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

How to add subtitles & captions to video?

Automatically add highly accurate subtitles or captions to video in over 30 languages and dialects. Or let professional transcribers create 99% accurate subtitles and captions for you in English.

Over 15,000 teams are already using it.

Automate multi-language subtitles, generate SRTs and burn subtitles in video or audio files. Get more content out the door faster.
Get started today

Try full features for 7 days.

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Subtitle guidelines (BBC, Netflix, Ted), custom vocabulary...

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

Subtitle & caption maker.

Create your subtitles automatically with transcription templates for BBC, Netflix, Ted, or apply your own custom settings (maximum characters per line / second).

Upload your file online and put subtitles on video in minutes. Automatic subtitle maker uses artificial intelligence (AI) to generate subtitles with close-to-perfect accuracy, so you still have control to edit and style them, but don’t have to be delayed by a human.

Quickly adjust the timeline or find and replace words in the subtitle editor. Or include speakers in your video or transcription files.

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Try full features for 7 days.

Style & edit subtitles.

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 subtitled video clips. Apply social media safe zones.

Cut your videos and create clips for internal or external sharing.

Or resize your video in one click for different social media platforms: YouTube Shorts, Facebook, Instagram, YouTube, TikTok... 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 video content for different platforms.
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Ali Abdaal
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Try full features for 7 days.

Subly subtitles & captions - 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 (SubRip 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 multi-language subtitles, generate SRTs and burn subtitles in video or audio files. Get more content out the door faster.

Content localisation teams.

Talk everyone's language. Seamless communication across borders with automatic multi-language subtitles for video and audio.

Subly use case
Subly use case

Teams producing 20+ monthly videos.

Simplify workflows with accurate subtitles in multiple languages and file formats (srt / txt / vtt). Have a full control over subtitling processes and their industry jargon transcription settings.

Training & internal comm teams.

Make the local - global to increase engagement & reach. Create multiple language versions of their training videos.

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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? Put 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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Provide accessibility for viewers with hearing impairments. Help users who aren't fluent in the spoken language or have difficulty understanding accents or speech patterns.

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Enhance the experience for viewers who prefer to read along with the audio. Reading and hearing simultaneously can improve understanding of your video content.

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Increase engagement by adding subtitles and getting the attention of those scrolling with sound off. Subtitles can make viewers feel more connected to the characters and story.

Bring video content closer to your audience.

Want to get started with auto-caption maker? 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.

Subtitle translator, 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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Transform audio / video.

Convert audio to video or video (mp4) to audio (mp3).

  • Share of traffic from video-based platforms.

  • 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 / video
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Speech-to-text transcription.

Convert video to text or audio to text easily with AI and professional transcribers.

  • Save hours of content creation work with AI 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. Integrate the power of Subly's AI in your internal environment.

  • 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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Edit video online.

No need for complex tools. Make quick edits online.

  • Add text to your videos and style it.

  • 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
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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 add subtitles to a video?

1. Upload a video and select the spoken language for accurate subtitles, or add your SRT file.
2. Add subtitles and captions automatically and make edits if neccessary in the timestamp editor.
3. Change the style of subtitles, font, size, background, or adjust timestamps on the timeline.
4. Download subtitles with the video (MP4, MOV) or in TXT, SRT, VTT file format.

What subtitle 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.

What is the difference between subtitles and captions?

Subtitles and captions are both textual representations of the spoken words and sounds in a video, but there is a subtle difference between them.

Subtitles include the spoken words, without any additional information about sound effects or background noises.

Captions, on the other hand, are designed to provide a more complete textual representation of all the audio content in a video, including speakers, sound effects, and other relevant information.