diff --git a/.gitignore b/.gitignore
index 6809ebb..ce55809 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,9 @@
 # Ignore environment variables
 .env
 
+# Ignore Active Storage
+/storage
+
 # Ignore dragonfly uploads
 /public/system
 /public/packs
diff --git a/Gemfile b/Gemfile
index f7ae0a7..f12124c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,8 +7,8 @@ gem "dotenv-rails", groups: %i[development test]
 gem "rails", "5.2.1"
 
 gem "delayed_job_active_record"
-gem "dragonfly"
 gem "http"
+gem "mini_magick"
 gem "omniauth-github"
 gem "pg"
 gem "puma"
diff --git a/Gemfile.lock b/Gemfile.lock
index a10b1af..14f53d4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,10 +82,6 @@ GEM
     dotenv-rails (2.5.0)
       dotenv (= 2.5.0)
       railties (>= 3.2, < 6.0)
-    dragonfly (1.1.5)
-      addressable (~> 2.3)
-      multi_json (~> 1.0)
-      rack (>= 1.3)
     erubi (1.7.1)
     execjs (2.7.0)
     faraday (0.12.2)
@@ -121,6 +117,7 @@ GEM
       mimemagic (~> 0.3.2)
     method_source (0.9.1)
     mimemagic (0.3.2)
+    mini_magick (4.9.2)
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
@@ -266,10 +263,10 @@ DEPENDENCIES
   capybara
   delayed_job_active_record
   dotenv-rails
-  dragonfly
   geckodriver-helper
   http
   launchy
+  mini_magick
   omniauth-github
   pg
   pry
@@ -289,4 +286,4 @@ RUBY VERSION
    ruby 2.5.1p57
 
 BUNDLED WITH
-   1.16.4
+   1.16.5
diff --git a/README.md b/README.md
index b531719..6ad2828 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [ ![Codeship Status for danbee/my-images](https://app.codeship.com/projects/cf564ea0-7cbe-0136-47c4-2ebac98daaef/status?branch=master)](https://app.codeship.com/projects/300990)
 
-A simple DragonFly powered image storage application.
+A simple Active Storage powered image storage application.
 
 ![](https://user-images.githubusercontent.com/165531/43842691-e38186be-9af3-11e8-9387-d1ee206cca2e.png)
 
diff --git a/app/helpers/image_helper.rb b/app/helpers/image_helper.rb
index 62e5ec7..0298353 100644
--- a/app/helpers/image_helper.rb
+++ b/app/helpers/image_helper.rb
@@ -1,9 +1,15 @@
 module ImageHelper
+  def image_variant(image, variant)
+    image.variant(variant)
+  end
+
   def image_thumb(image, size)
-    if image.format == "jpeg"
-      image.thumb(size).encode("jpg", "-quality 90")
-    else
-      image.thumb(size)
-    end
+    image.variant(
+      combine_options: {
+        gravity: "center",
+        resize: "#{size}x#{size}^",
+        extent: "#{size}x#{size}",
+      },
+    )
   end
 end
diff --git a/app/jobs/tag_image_job.rb b/app/jobs/tag_image_job.rb
index ac84935..5a9603d 100644
--- a/app/jobs/tag_image_job.rb
+++ b/app/jobs/tag_image_job.rb
@@ -4,7 +4,7 @@ class TagImageJob < ApplicationJob
   def perform(image_id:)
     image = Image.find(image_id)
 
-    tags = Clarifai.new(image.image.file.path).tags
+    tags = Clarifai.new(image.image.download).tags
     image.update_attributes(tags: tags)
   end
 end
diff --git a/app/models/image.rb b/app/models/image.rb
index 379ff1a..abf3346 100644
--- a/app/models/image.rb
+++ b/app/models/image.rb
@@ -1,7 +1,7 @@
 class Image < ActiveRecord::Base
-  dragonfly_accessor :image
+  has_one_attached :image
 
-  validates :image, presence: true
+  validates :image, attached: true
 
   belongs_to :user
 end
diff --git a/app/models/user.rb b/app/models/user.rb
index 1fcfad9..e818b79 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,6 +1,4 @@
 class User < ActiveRecord::Base
-  dragonfly_accessor :avatar
-
   has_many :images
 
   def self.find_or_create_from_auth(auth)
@@ -13,7 +11,6 @@ class User < ActiveRecord::Base
       uid: auth.uid,
       username: auth.info.nickname,
       name: auth.info.name,
-      avatar_url: auth.info.image,
     )
   end
 end
diff --git a/app/validators/attached_validator.rb b/app/validators/attached_validator.rb
new file mode 100644
index 0000000..b860bc1
--- /dev/null
+++ b/app/validators/attached_validator.rb
@@ -0,0 +1,7 @@
+class AttachedValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    if !value.attached?
+      record.errors.add(attribute, :attached, options)
+    end
+  end
+end
diff --git a/app/views/images/_image.html.erb b/app/views/images/_image.html.erb
index 43a3604..31ca994 100644
--- a/app/views/images/_image.html.erb
+++ b/app/views/images/_image.html.erb
@@ -1,17 +1,17 @@
 <picture>
-  <source srcset="<%= image_thumb(@image.image, "2000x2000").url %>"
+  <source srcset="<%= url_for image_variant(@image.image, resize: "2000x2000") %>"
           media="(min-width: 960px) and (-webkit-min-device-pixel-ratio: 2),
                   (min-width: 960px) and (min-resolution: 192dpi)">
-  <source srcset="<%= image_thumb(@image.image, "1000x1000").url %>"
+  <source srcset="<%= url_for image_variant(@image.image, resize: "1000x1000") %>"
           media="(min-width: 960px)">
-  <source srcset="<%= image_thumb(@image.image, "1400x1400").url %>"
+  <source srcset="<%= url_for image_variant(@image.image, resize: "1400x1400") %>"
           media="(min-width: 640px) and (-webkit-min-device-pixel-ratio: 2),
                   (min-width: 640px) and (min-resolution: 192dpi)">
-  <source srcset="<%= image_thumb(@image.image, "700x700").url %>"
+  <source srcset="<%= url_for image_variant(@image.image, resize: "700x700") %>"
           media="(min-width: 640px)">
-  <source srcset="<%= image_thumb(@image.image, "960x960").url %>"
+  <source srcset="<%= url_for image_variant(@image.image, resize: "960x960") %>"
           media="(-webkit-min-device-pixel-ratio: 2),
                   (min-resolution: 192dpi)">
-  <source srcset="<%= image_thumb(@image.image, "480x480").url %>">
-  <img src="<%= image_thumb(@image.image, "480x480").url %>" itemprop="image">
+  <source srcset="<%= url_for image_variant(@image.image, resize: "480x480") %>">
+  <img src="<%= url_for image_variant(@image.image, resize: "480x480") %>" itemprop="image">
 </picture>
diff --git a/app/views/images/index.html.erb b/app/views/images/index.html.erb
index 803ed02..6b6d926 100644
--- a/app/views/images/index.html.erb
+++ b/app/views/images/index.html.erb
@@ -5,7 +5,7 @@
 <ul class="images">
   <% @images.each do |image| %>
     <li>
-      <%= link_to image_tag(image.image.thumb('200x200#').url),
+      <%= link_to image_tag(image_thumb(image.image, 200)),
           user_image_path(image), class: :image %><br>
       <%= link_to 'Delete', user_image_path(image),
           method: :delete, data: { confirm: 'Are you sure?' } %>
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 2a1934a..f78382a 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -16,6 +16,9 @@ MyImages::Application.configure do
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
 
+  # Store files locally.
+  config.active_storage.service = :local
+
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
diff --git a/config/environments/production.rb b/config/environments/production.rb
index c992235..8a46fbd 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -72,6 +72,9 @@ MyImages::Application.configure do
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
+  # Store files locally.
+  config.active_storage.service = :local
+
   # Disable automatic flushing of the log to improve performance.
   # config.autoflush_log = false
 
diff --git a/config/environments/test.rb b/config/environments/test.rb
index edb380f..240f562 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -33,4 +33,7 @@ MyImages::Application.configure do
 
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
+
+  # Store files locally.
+  config.active_storage.service = :test
 end
diff --git a/config/initializers/dragonfly.rb b/config/initializers/dragonfly.rb
deleted file mode 100644
index 8e8ef5f..0000000
--- a/config/initializers/dragonfly.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-require "dragonfly"
-
-# Configure
-Dragonfly.app.configure do
-  plugin :imagemagick
-
-  verify_urls true
-  secret "0da375f9754c75707f2a3b4e0c75dffb7ec7d6bb1a4a77e8a8dcfba9037bebce"
-
-  url_format "/media/:job/:name"
-
-  datastore :file,
-    root_path: Rails.root.join("public/system/dragonfly", Rails.env),
-    server_root: Rails.root.join("public")
-end
-
-# Logger
-Dragonfly.logger = Rails.logger
-
-# Mount as middleware
-Rails.application.middleware.use Dragonfly::Middleware
-
-# Add model functionality
-if defined?(ActiveRecord::Base)
-  ActiveRecord::Base.extend Dragonfly::Model
-  ActiveRecord::Base.extend Dragonfly::Model::Validations
-end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 0653957..c0523a6 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -21,3 +21,8 @@
 
 en:
   hello: "Hello world"
+
+  activerecord:
+    errors:
+      messages:
+        attached: is not attached
diff --git a/config/storage.yml b/config/storage.yml
new file mode 100644
index 0000000..1f93f73
--- /dev/null
+++ b/config/storage.yml
@@ -0,0 +1,7 @@
+local:
+  service: Disk
+  root: <%= Rails.root.join("storage") %>
+
+test:
+  service: Disk
+  root: <%= Rails.root.join("tmp/storage") %>
diff --git a/db/migrate/20181019204358_create_active_storage_tables.active_storage.rb b/db/migrate/20181019204358_create_active_storage_tables.active_storage.rb
new file mode 100644
index 0000000..360e0d1
--- /dev/null
+++ b/db/migrate/20181019204358_create_active_storage_tables.active_storage.rb
@@ -0,0 +1,26 @@
+# This migration comes from active_storage (originally 20170806125915)
+class CreateActiveStorageTables < ActiveRecord::Migration[5.2]
+  def change
+    create_table :active_storage_blobs do |t|
+      t.string   :key,        null: false
+      t.string   :filename,   null: false
+      t.string   :content_type
+      t.text     :metadata
+      t.bigint   :byte_size,  null: false
+      t.string   :checksum,   null: false
+      t.datetime :created_at, null: false
+
+      t.index [ :key ], unique: true
+    end
+
+    create_table :active_storage_attachments do |t|
+      t.string     :name,     null: false
+      t.references :record,   null: false, polymorphic: true, index: false
+      t.references :blob,     null: false
+
+      t.datetime :created_at, null: false
+
+      t.index [ :record_type, :record_id, :name, :blob_id ], name: "index_active_storage_attachments_uniqueness", unique: true
+    end
+  end
+end
diff --git a/db/migrate/20181019210305_rename_dragonfly_columns.rb b/db/migrate/20181019210305_rename_dragonfly_columns.rb
new file mode 100644
index 0000000..3a50e5e
--- /dev/null
+++ b/db/migrate/20181019210305_rename_dragonfly_columns.rb
@@ -0,0 +1,6 @@
+class RenameDragonflyColumns < ActiveRecord::Migration[5.2]
+  def change
+    rename_column :images, :image_uid, :df_image_uid
+    rename_column :images, :image_name, :df_image_name
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 491eb0b..254c7b0 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,11 +10,32 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2018_08_26_163510) do
+ActiveRecord::Schema.define(version: 2018_10_19_210305) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "active_storage_attachments", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "record_type", null: false
+    t.bigint "record_id", null: false
+    t.bigint "blob_id", null: false
+    t.datetime "created_at", null: false
+    t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
+    t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
+  end
+
+  create_table "active_storage_blobs", force: :cascade do |t|
+    t.string "key", null: false
+    t.string "filename", null: false
+    t.string "content_type"
+    t.text "metadata"
+    t.bigint "byte_size", null: false
+    t.string "checksum", null: false
+    t.datetime "created_at", null: false
+    t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
+  end
+
   create_table "delayed_jobs", force: :cascade do |t|
     t.integer "priority", default: 0, null: false
     t.integer "attempts", default: 0, null: false
@@ -32,8 +53,8 @@ ActiveRecord::Schema.define(version: 2018_08_26_163510) do
 
   create_table "images", force: :cascade do |t|
     t.integer "user_id"
-    t.string "image_uid"
-    t.string "image_name"
+    t.string "df_image_uid"
+    t.string "df_image_name"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "tags", default: [], array: true
diff --git a/lib/clarifai.rb b/lib/clarifai.rb
index a12efb2..60be6ae 100644
--- a/lib/clarifai.rb
+++ b/lib/clarifai.rb
@@ -6,8 +6,8 @@ class Clarifai
   API_URL = "https://api.clarifai.com/v2/models/" \
             "aaa03c23b3724a16a56b629203edc62c/outputs".freeze
 
-  def initialize(image_path)
-    @image_path = image_path
+  def initialize(image_data)
+    @image_data = image_data
   end
 
   def tags
@@ -16,6 +16,8 @@ class Clarifai
 
   private
 
+  attr_reader :image_data
+
   def extract_tags(response_hash)
     response_hash["outputs"][0]["data"]["concepts"].map do |concept|
       concept["name"]
@@ -40,10 +42,6 @@ class Clarifai
   end
 
   def image_base64
-    Base64.encode64(image_file)
-  end
-
-  def image_file
-    File.read(@image_path)
+    Base64.encode64(image_data)
   end
 end
diff --git a/lib/tasks/images_migrate.rake b/lib/tasks/images_migrate.rake
new file mode 100644
index 0000000..4f1f813
--- /dev/null
+++ b/lib/tasks/images_migrate.rake
@@ -0,0 +1,11 @@
+namespace :images do
+  desc "Migrate all the images to Active Storage"
+  task migrate: :environment do
+    Image.all.each do |image|
+      image.image.attach(
+        io: image.df_image.file,
+        filename: image.df_image.name,
+      )
+    end
+  end
+end
diff --git a/spec/features/user_manages_image_spec.rb b/spec/features/user_manages_image_spec.rb
index 66c7a46..bd94a1a 100644
--- a/spec/features/user_manages_image_spec.rb
+++ b/spec/features/user_manages_image_spec.rb
@@ -15,10 +15,14 @@ feature "user manages images" do
 
   it "deletes the image" do
     user = User.create(uid: "1")
-    Image.create(
+    image = Image.new(
       user: user,
-      image: File.new("#{Rails.root}/spec/fixtures/spectrum.jpg"),
     )
+    image.image.attach(
+      io: File.open("#{Rails.root}/spec/fixtures/spectrum.jpg"),
+      filename: "spectrum.jpg",
+    )
+    image.save
 
     sign_in(user)
     click_on("Delete")
diff --git a/spec/features/user_manages_image_tags_spec.rb b/spec/features/user_manages_image_tags_spec.rb
index ce41408..318d4cd 100644
--- a/spec/features/user_manages_image_tags_spec.rb
+++ b/spec/features/user_manages_image_tags_spec.rb
@@ -4,11 +4,15 @@ feature "user manages image tags by visitng images show page" do
   scenario "and can see an X to link for deletion on a tag" do
     tags = ["one", "two"]
     user = User.create(uid: "123")
-    Image.create(
+    image = Image.new(
       user: user,
       tags: tags,
-      image: File.new("#{Rails.root}/spec/fixtures/spectrum.jpg"),
     )
+    image.image.attach(
+      io: File.open("#{Rails.root}/spec/fixtures/spectrum.jpg"),
+      filename: "spectrum.jpg",
+    )
+    image.save
 
     sign_in(user)
     page.find(".image").click
@@ -21,11 +25,15 @@ feature "user manages image tags by visitng images show page" do
   scenario "and can click the link to delete a tag", js: true do
     tags = ["one", "two"]
     user = User.create(uid: "123")
-    Image.create(
+    image = Image.new(
       user: user,
       tags: tags,
-      image: File.new("#{Rails.root}/spec/fixtures/spectrum.jpg"),
     )
+    image.image.attach(
+      io: File.open("#{Rails.root}/spec/fixtures/spectrum.jpg"),
+      filename: "spectrum.jpg",
+    )
+    image.save
 
     sign_in(user)
     page.find(".image").click
@@ -41,11 +49,15 @@ feature "user manages image tags by visitng images show page" do
     tags = ["one", "two"]
     user = User.create(uid: "123")
     new_tag = "newtag"
-    Image.create(
+    image = Image.new(
       user: user,
       tags: tags,
-      image: File.new("#{Rails.root}/spec/fixtures/spectrum.jpg"),
     )
+    image.image.attach(
+      io: File.open("#{Rails.root}/spec/fixtures/spectrum.jpg"),
+      filename: "spectrum.jpg",
+    )
+    image.save
 
     sign_in(user)
     page.find(".image").click
diff --git a/spec/jobs/tag_image_job_spec.rb b/spec/jobs/tag_image_job_spec.rb
index 2244725..d88d503 100644
--- a/spec/jobs/tag_image_job_spec.rb
+++ b/spec/jobs/tag_image_job_spec.rb
@@ -4,9 +4,12 @@ describe TagImageJob, type: :job do
   describe ".perform" do
     it "tags an image" do
       stub_clarifai(%w[computers technology])
-      image = Image.create(
-        image: "#{Rails.root}/spec/fixtures/spectrum.jpg",
+      image = Image.new
+      image.image.attach(
+        io: File.open("#{Rails.root}/spec/fixtures/spectrum.jpg"),
+        filename: "spectrum.jpg",
       )
+      image.save
 
       TagImageJob.perform_now(image_id: image.id)
       image.reload
diff --git a/spec/lib/clarifai_spec.rb b/spec/lib/clarifai_spec.rb
index cef4a8d..80e6ed5 100644
--- a/spec/lib/clarifai_spec.rb
+++ b/spec/lib/clarifai_spec.rb
@@ -11,7 +11,7 @@ describe Clarifai do
     it "predicts tags for our image" do
       stub_api(%w[computer technology])
 
-      clarifai = Clarifai.new("spec/fixtures/spectrum.jpg")
+      clarifai = Clarifai.new(File.read("spec/fixtures/spectrum.jpg"))
 
       expect(clarifai.tags).to eq(%w[computer technology])
     end
diff --git a/spec/models/image_spec.rb b/spec/models/image_spec.rb
index c534807..3c490b6 100644
--- a/spec/models/image_spec.rb
+++ b/spec/models/image_spec.rb
@@ -1,11 +1,7 @@
 require "rails_helper"
 
 describe Image do
-  it { is_expected.to validate_presence_of(:image) }
   it { is_expected.to belong_to(:user) }
-
-  it "should not be valid without an image" do
-    image = Image.new
-    expect(image).not_to be_valid
-  end
+  it { is_expected.to have_attached_file(:image) }
+  it { is_expected.to validate_attachment_of(:image) }
 end
diff --git a/spec/support/matchers/have_attached_file.rb b/spec/support/matchers/have_attached_file.rb
new file mode 100644
index 0000000..107e026
--- /dev/null
+++ b/spec/support/matchers/have_attached_file.rb
@@ -0,0 +1,7 @@
+RSpec::Matchers.define :have_attached_file do |name|
+  match do |record|
+    file = record.send(name)
+
+    file.respond_to?(:attach)
+  end
+end
diff --git a/spec/support/matchers/validate_attachment_of.rb b/spec/support/matchers/validate_attachment_of.rb
new file mode 100644
index 0000000..955cc81
--- /dev/null
+++ b/spec/support/matchers/validate_attachment_of.rb
@@ -0,0 +1,45 @@
+require "rspec/expectations"
+
+RSpec::Matchers.define :validate_attachment_of do |attr_name|
+  match do |record|
+    matcher.matches?(record, attr_name)
+  end
+
+  chain :on do |validation_context|
+    matcher.on(validation_context)
+  end
+
+  chain :with_message do |message|
+    matcher.with_message(message)
+  end
+
+  private
+
+  def matcher
+    @matcher ||= ValidateAttachmentOfMatcher.new
+  end
+
+  class ValidateAttachmentOfMatcher
+    def on(validation_context)
+      @validation_context = validation_context
+    end
+
+    def with_message(message)
+      @message = message
+    end
+
+    def matches?(record, attr_name)
+      record.send(attr_name).purge
+      record.valid?(validation_context)
+      record.errors[attr_name].include? message
+    end
+
+    private
+
+    attr_reader :validation_context
+
+    def message
+      @message || I18n.translate("activerecord.errors.messages.attached")
+    end
+  end
+end