Free AI subtitle generator

Add Accurate Subtitles to your Videos

Add accurate subtitles to your videos and save hours of work. Upload your videos and edit right on your browser. Translate your subtitle into another language with a single click. Get subtitle file for your YouTube video or download the video with subtitles added.

Sign up and add subtitles to videos for free.

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98%+ Accuracy
98+ Languages
Up to 2 Hours / Video
SRT/VTT Export
Minimal Editing Needed
Closed or Open Captions

Powered by Whisperbut Optimized for Video Subtitles

  • Focused on Accuracy

    We don't cut corners when we transcribe your videos, we use the highest quality AI model to make sure the transcription is as accurate as possible. This saves you time and money in your content creation process.

  • Precise Timestamps

    Not every AI transcription tool gives you timestamps precise enough for videos. We add extra processing to align the timestamps so you don't have to spend too much time tweaking them. We also provide word-level timestamps for more fine-grained controls.

  • Smooth Subtitle Editing Experience

    Captioner is built by content creators, for content creators. We spent hours perfecting the editing experience so you can spend more time on your content and less time on the tools.

  • Import and Align Existing Transcripts

    You might already have a transcript written for your video. No problem! You can import it directly into Captioner and we will align it for you. (Think YouTube's auto-sync feature, but better!)

  • Subtitle File Export

    Different platforms and editing softwares use different subtitle file formats. We support the most popular formats (SBV, SRT, VTT) so you can add quickly add subtitles into your YouTube videos. You can also choose a font style directly from the editor and get a video export with the subtitles burned in.

Clear pricing, built around minutes

Start with 60 credits. Subscribe for a fresh monthly allowance and clean exports.

Free

Try real transcription and translation before you pay.

$0

Start free
  • 60 credits once — about 60 minutes
  • Transcription and translation use credits
  • Video exports include a watermark
  • Up to 1080p video export
  • Subtitle file export requires a purchase

Basic

For viewers, translators, and occasional publishing.

$10$5/ month

$60 billed yearly

Save 50%

Choose Basic
  • 300 credits every month
  • About 5 hours of transcription or translation
  • Clean video exports with no watermark
  • SRT and VTT subtitle exports
  • Up to 1080p video export
  • Cancel anytime; access runs to period end
Recommended

Creator

For creators who need deeper Editor controls and more monthly volume.

$20$10/ month

$120 billed yearly

Save 50%

Choose Creator
  • 1,200 credits every month
  • About 20 hours of transcription or translation
  • Everything in Basic
  • Up to 4K video export
  • Priority rendering
  • Cancel anytime; access runs to period end

One-Week Pass

$7/ one-time

Get a One-Week Pass
  • 120 Permanent Credits
  • Creator features for 7 days
  • Buy again while active: +120 credits and +7 days
  • After 7 days, Creator features end. Keep unused credits and clean 1080p + SRT/VTT while they last.
  • One-time payment, no subscription

"I haven't found an AI transcription software that is not only accurate but also affordable until I came across Captioner. It's a game changer for our channel."

Frequently Asked Questions

  • What is Captioner?

    Captioner is an AI Speech-to-Text software that is built to specialize in transcribing videos to text. You can use it to generate subtitles for your videos. Captioner converts video files to text in 98+ languages in high accuracy, and it aligns the subtitles closely to the speech in the videos.

  • Which plan fits me?

    Free includes 60 one-time credits. Basic includes 300 Monthly Credits for $10/month and clean 1080p + SRT/VTT exports. Creator includes 1,200 Monthly Credits for $20/month, 4K, and priority rendering. One-Week Pass is a $7 one-time payment for 120 Permanent Credits and 7 days of Creator features.

  • How much does it cost?

    Free costs $0. Basic costs $10/month or $60/year, and Creator costs $20/month or $120/year; yearly billing saves 50%. One-Week Pass costs $7 once. After its 7-day Creator window, unused Permanent Credits stay available with clean 1080p + SRT/VTT exports while they last.

  • Can I upload large files?

    While you can submit videos up to 2 hours long, the file size limit is currently at 2GB. If you have a larger file, you can shrink it to a smaller resolution (480p) and compress it before uploading, and edit the subtitles on Captioner first, then export the subtitles in SRT / VTT format and import them to your video editing software before rendering.

  • What video formats do you support?

    Captioner currently supports MP4 and MOV file uploads. We recommend using MP4 files for the best results. If you have a different format, you can convert it to MP4 using a free online converter.

  • How long does it take to transcribe a video?

    We are not the fastest because we optimize for accuracy so you don't have to spend too much time editing afterwards. But for an average 30-minute video, it usually takes around 5-6 minutes to transcribe.

  • How long does it take to render a video?

    Rendering a video is the most time consuming step in the process. Usually for a 5-minute video, it takes about 5-10 minutes to render.

  • The processing is taking too long! I have waited for more than 30 minutes!

    I apologize for the delay. Please feel free to reach out to us by using the chat bubble on the bottom right on the dashboard, we will be happy to help you speed up.

  • What formats can I export the subtitles in?

    You can export the subtitles in SBV, SRT and VTT formats. These are the most common formats that are supported by most video editing software.

  • What languages do you support?

    Captioner converts speech to text in over 98 languages using the highest accuracy AI transcription technology. Languages like English and Chinese are most accurate, and we have specifically fine-tuned our Whisper model to support Cantonese, a dialect of Chinese. However, Voice to text accuracy varies by language. Do feel free to try it out and see if it meets your needs. You can check out the full list of supported languages in the documentation.

  • What languages do you offer translations?

    Captioner supports subtitle translation to Chinese, Spanish, Burmese, Portuguese, French, Indonesian, Russian, Arabic, Vietnamese, Polish, Italian, Turkish, Hindi, German, and Thai, alongside existing English, Japanese, and Korean options in the editor.

  • Can I edit the subtitles?

    Yes. After transcription, you can edit subtitle text and timing directly in Captioner, then export the result.

  • Do I need to mute the background music in my video?

    Even though it is best to have a clean speech audio for the best transcription results, you don't have to mute the background music in your video. Captioner is designed to transcribe speech even with background noise, because we have a built-in voice extraction process that can separate the speech from the background noise. This ensures that the subtitles are as accurate as possible.

  • How do I cancel the subscription?

    You can cancel your subscription at any time by clicking "Billing" in the dashboard. You'll have full access to Captioner through the end of the current billing period.

  • Who is behind Captioner?

    Hey! I am Simon. I spent over a decade building AI systems at companies like Amazon. Now I'm building products and services like Captioner.

Can't find the answer you're looking for? Reach out to our customer support team.

Not Convinced? Try it for yourself!

Start uploading your video and add subtitles right away. Once you finish editing, you can get the subtitle files downloaded and use them in your video, or simply choose a subtitle style and download the video back with the subtitles burned in.

No credit card required for free trial.

Upload your first Video and Start Editing