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List of 7 Popular Free AI Caption Generators + Their Features

Leverage AI generated captions to achieve your goals online.
Leverage AI generated captions to achieve your goals online.

List of 7 Popular Free AI Caption Generators + Their Features

We’ve discussed social media caption generators, video caption generators, and specifically Instagram caption generators before. We do this, because captions have several functions. Closed captions make visual content accessible to the hearing impaired — allowing your content to reach a wider audience. Whereas captions on social media make content accessible and boost your content on various algorithms. However, in this post we’ll discuss popular free AI caption generators. In fact, with this post, you’ll find a tool to do what you need without the associated costs.

Captionbot.AI

CaptionBot, powered by Microsoft Cognitive Services, creates captions from images. 

Besides CaptionBot’s key features, some that stand out include:

  • Real-time image analysis
  • Multiple caption styles
  • Integration with social media platforms
  • Support for multiple languages
  • Batch processing capabilities

Azure AI Vision

Azure AI Vision, another Microsoft service, is a comprehensive service that provides advanced computer vision capabilities. In fact, Azure AI can read text, detect faces with prebuilt image tagging, and perform text extraction using optical character recognition (OCR). Although Azure AI Vision offers premium services, it has a free tier.

Among Azure AI Vision’s key features, some that stand out  include:

  • Accuracy rate: Over 90% for common objects
  • Supports more than 25 languages

Google Cloud Vision AI

Google Cloud Vision AI has a ready-to-use API enabling developers to integrate vision detection features into their apps. The API gives users 1,000 units of its features for free every month.

Besides Google Cloud Vision AI’s key features, some that stand out include:

  • Advanced scene detection capabilities
  • Emotion recognition features
  • Supports context-aware captioning

Kapwing Video Subtitles

Kapwing enables users to add subtitles to their videos. To add subtitles to their videos using this free AI caption generator, users upload their video, select add subtitles, and edit the captions, location, and font size; before exporting.

Besides Kapwing’s key features, some that stand out include:

  • Support for multiple languages
  • Translating AI generated subtitles to over 70 languages
  • Timeline synchronization
  • Speaker detection
  • Integration of emotion context

Mention

Among free AI caption generators, Mention offers captions for social media — primarily Instagram and TikTok. However, unlike other free AI caption generators, Mention doesn’t create captions from images. Instead, Mention requires you to include some details about what your Instagram post will be about. Then, Mention will generate Instagram caption ideas.

Besides Mention’s key features, some that stand out include:

  • Hashtag optimization
  • Engagement analysis tools
  • Platform-specific formatting assistance
  • SEO-focused optimization
  • Integration of current trends

Adobe Express

If you’re searching for free AI caption generators, Adobe Express has a free-to-use video caption generator that excels at captions of social media video content. In fact, you can quickly generate captions using the Adobe Express video editor. 

Among Adobe Express’s key features, some that stand out include:

  • Free Video Templates and Assets
  • Add effects to social media video captions
  • Enables resizing social media content
  • Supports captioning in multiple languages
Fluffy AI

Fluffy AI is available to individuals, small businesses, and marketers. This AI caption generator specializes in creating and optimizing social media content to ensure you can commit to posting on social media regularly even if you don’t have the time to dedicate to it.

Besides Fluffy AI’s key features, some that stand out include:

  • Create content with brand voice integration
  • Bulk content generation  
  • Emotional sensitivity 
  • Image to caption generation
  • Trend tracking
  • Auto-personalization

Free AI caption generators make your videos and visuals more accessible without a substantial investment. Of course, these free tools also increase productivity, allowing you to caption content in seconds.

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