What is the maximum file size I can upload?

Captioner.io supports video files up to 2GB. For larger files, it is recommended to compress them before uploading to ensure a smooth transcription process.

Does it support translation to languages other than Chinese?

Currently, the specialized translation feature is optimized for English to Mandarin Chinese for platforms like Red Note. However, the tool transcribes over 98 other languages.

Are the subtitles burned into the video?

Yes, you can export your videos with the subtitles burned in as an MP4 file, or you can download the transcription as an SRT file for use on other platforms.

Can I use Captioner.io for free?

Yes, there is a free tier that allows for 3 transcriptions per month with a 30-minute limit per file, allowing you to test the accuracy before upgrading.

Who is the developer behind the tool?

Captioner.io is developed by Botisan AI Pte. Ltd., a Singapore-based company founded by an indie developer with extensive AI experience at Amazon.

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Video captions

Freemium

Captioner.io

Add accurate, multilingual AI subtitles to videos instantly in your browser. Supports 98+ languages, translation for Red Note, and customizable styling.

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Rating

Reviews

Upvotes

4 months ago

Listed

Video captions

Subtitle generator

AI transcription

Video localization

Social media tools

Red Note

Video editing

Content creation

Tool information

Provider

Botisan AI Pte. Ltd.

Platforms

Web

iOS

Languages

English

Chinese

Spanish

French

German

Japanese

Korean

Portuguese

Italian

Russian

Arabic

Hindi

Dutch

Turkish

Added to directory

4 months ago

Last updated

about 2 months ago

Rating

Not available

Pricing

Freemium

About Captioner.io

What the tool does and who it's for

Captioner.io is a specialized AI-powered video transcription and subtitling tool designed to streamline the creation of accurate, multilingual captions directly in the browser. Powered by optimized Whisper models, it offers high-accuracy transcription for over 98 languages, making it a go-to for content creators targeting global platforms like YouTube, TikTok, and Red Note (Xiaohongshu). The platform features an intuitive editor where users can customize font styles, colors, and positioning, as well as translate English content into Mandarin Chinese. With a focus on speed and ease of use, Captioner.io allows for one-click transcription, automated timing alignment, and watermark-free exports, catering to both social media marketers and professional video editors.

Key capabilities

High-accuracy AI transcription for 98+ languages using optimized Whisper models.

Precise auto-alignment of subtitles with spoken audio for seamless viewing.

English to Mandarin Chinese translation optimized for Red Note (Xiaohongshu) audiences.

Browser-based editor for real-time font, color, and styling customization.

Watermark-free video exports available for premium users.

Support for both portrait (vertical) and landscape video formats.

Export options including burned-in subtitles (MP4) and SRT file downloads.

Fast processing speeds with the ability to handle files up to 2GB.

Pricing

Freemium — plans below

Free

3 transcriptions per month
Up to 30 minutes per file
Access to basic styling
Community support

Pro

Unlimited

Contact for pricing

Unlimited video transcriptions
Priority processing
Full translation capabilities
Advanced style presets

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