ImageKit Rails

Rails view helpers and Active Storage integration for ImageKit.io.

The ImageKit Rails gem provides seamless integration with Ruby on Rails applications, including:

• View helpers (ik_image_tag and ik_video_tag) with transformation support
• Active Storage service for storing files in ImageKit
• Automatic responsive images with srcset generation
• Image and video transformations (resize, crop, effects, overlays)
• Signed URLs for secure delivery

Add to your Gemfile:

gem 'imagekitio-rails'

Run:

bundle install

This will automatically install the required imagekitio core SDK (version 4.x) as a dependency.

Create config/initializers/imagekit.rb:

Imagekit::Rails.configure do |config|
  config.url_endpoint = ENV['IMAGEKIT_URL_ENDPOINT']
  config.public_key = ENV['IMAGEKIT_PUBLIC_KEY']
  config.private_key = ENV['IMAGEKIT_PRIVATE_KEY']
end

Get your credentials from ImageKit Dashboard → API Keys.

<!-- Display an image with transformations -->
<%= ik_image_tag("/photo.jpg", transformation: [{ width: 400, height: 300 }], alt: "My Photo") %>

<!-- Display a video -->
<%= ik_video_tag("/video.mp4", controls: true) %>

<!-- Active Storage attachment with transformations -->
<%= ik_image_tag(@user.avatar, transformation: [{ width: 200, height: 200 }]) %>

• Rails Integration Guide - Complete integration guide
• Ruby SDK - Core SDK for non-Rails applications
• Transformation Reference - All available transformation options
• API Reference - Complete REST API documentation
• RubyDoc - Gem API documentation

• GitHub Issues: Report bugs or request features
• ImageKit Support: Contact support
• Documentation: imagekit.io/docs

Bug reports and pull requests are welcome on GitHub at https://github.com/imagekit-developer/imagekit-rails.

Apache License 2.0. See LICENSE for details.