diff --git a/Gruntfile.coffee b/Gruntfile.coffee
index 43a8425db..f11582ef9 100755
--- a/Gruntfile.coffee
+++ b/Gruntfile.coffee
@@ -61,7 +61,6 @@ module.exports = (grunt) ->
           'src/Filtering/**/*.coffee'
           'src/Quotelinks/**/*.coffee'
           'src/Posting/QR.coffee'
-          'src/Posting/Captcha.coffee'
           'src/Posting/**/*.coffee'
           'src/Images/**/*.coffee'
           'src/Linkification/**/*.coffee'
diff --git a/src/General/Config.coffee b/src/General/Config.coffee
index ed0a784a1..36d913beb 100755
--- a/src/General/Config.coffee
+++ b/src/General/Config.coffee
@@ -371,10 +371,6 @@ Config =
         true
         'Show notifications on successful post creation or file uploading.'
       ]
-      'Use Recaptcha v1': [
-        false
-        'Use the old version of Recaptcha before the introduction of the checkbox.'
-      ]
       'Captcha Warning Notifications': [
         true
         'When disabled, shows a red border on the CAPTCHA input until a key is pressed instead of a notification.'
diff --git a/src/General/css/style.css b/src/General/css/style.css
index 792bd3a70..c0d90b3cd 100755
--- a/src/General/css/style.css
+++ b/src/General/css/style.css
@@ -10,7 +10,6 @@
 #thread-watcher {
   box-shadow: -1px 2px 2px rgba(0, 0, 0, 0.25);
 }
-.captcha-img,
 .field {
   background-color: #FFF;
   border: 1px solid #CCC;
@@ -28,7 +27,6 @@
   font-size: 13px !important;
   opacity: 1.0 !important;
 }
-.captch-img:hover,
 .field:hover {
   border-color: #999;
 }
@@ -971,8 +969,7 @@ span.hide-announcement {
 #qr select,
 #dump-button,
 #url-button,
-.remove,
-.captcha-img {
+.remove {
   cursor: pointer;
 }
 #qr {
@@ -1065,23 +1062,6 @@ input.field.tripped:not(:hover):not(:focus) {
 #qr textarea {
   resize: both;
 }
-/* Recaptcha v1 */
-.captcha-img {
-  margin: 0px;
-  text-align: center;
-  background-image: #fff;
-  font-size: 0px;
-  min-height: 59px;
-  min-width: 302px;
-}
-.captcha-input{
-  width: 100%;
-  margin: 1px 0 0;
-}
-.captcha-input.error:focus {
-  border-color: rgb(255,0,0) !important;
-}
-/* Recaptcha v2 */
 #qr .captcha-root {
   position: relative;
 }
diff --git a/src/Posting/Captcha.coffee b/src/Posting/Captcha.coffee
deleted file mode 100644
index 5bcab40bb..000000000
--- a/src/Posting/Captcha.coffee
+++ /dev/null
@@ -1 +0,0 @@
-Captcha = {}
diff --git a/src/Posting/Captcha.v1.coffee b/src/Posting/Captcha.v1.coffee
deleted file mode 100644
index fa9822543..000000000
--- a/src/Posting/Captcha.v1.coffee
+++ /dev/null
@@ -1,176 +0,0 @@
-Captcha.v1 =
-  init: ->
-    return if d.cookie.indexOf('pass_enabled=1') >= 0
-    return unless @isEnabled = !!$.id 'g-recaptcha'
-
-    script = $.el 'script',
-      src: '//www.google.com/recaptcha/api/js/recaptcha_ajax.js'
-    $.add d.head, script
-    captchaContainer = $.el 'div',
-      id: 'captchaContainer'
-      hidden: true
-    $.add d.body, captchaContainer
-
-    @setup() if Conf['Auto-load captcha']
-
-    imgContainer = $.el 'div',
-      className: 'captcha-img'
-      title: 'Reload reCAPTCHA'
-    $.extend imgContainer, <%= html('<img>') %>
-    input = $.el 'input',
-      className: 'captcha-input field'
-      title: 'Verification'
-      autocomplete: 'off'
-      spellcheck: false
-    @nodes =
-      img:       imgContainer.firstChild
-      input:     input
-
-    $.on input, 'blur',  QR.focusout
-    $.on input, 'focus', QR.focusin
-    $.on input, 'keydown', QR.captcha.keydown.bind QR.captcha
-    $.on @nodes.img.parentNode, 'click', QR.captcha.reload.bind QR.captcha
-
-    $.addClass QR.nodes.el, 'has-captcha'
-    $.after QR.nodes.com.parentNode, [imgContainer, input]
-
-    @captchas = []
-    $.get 'captchas', [], ({captchas}) ->
-      QR.captcha.sync captchas
-      QR.captcha.clear()
-    $.sync 'captchas', @sync
-
-    new MutationObserver(@afterSetup).observe $.id('captchaContainer'), childList: true
-
-    @beforeSetup()
-    @afterSetup() # reCAPTCHA might have loaded before the QR.
-  beforeSetup: ->
-    {img, input} = @nodes
-    img.parentNode.hidden = true
-    input.value = ''
-    input.placeholder = 'Focus to load reCAPTCHA'
-    @count()
-    $.on input, 'focus', @setup
-  setup: ->
-    $.globalEval '''
-      (function() {
-        var captchaContainer = document.getElementById("captchaContainer");
-        if (captchaContainer.firstChild) return;
-        function setup() {
-          if (window.Recaptcha) {
-            Recaptcha.create(recaptchaKey, captchaContainer, {theme: "clean"});
-          } else {
-            setTimeout(setup, 25);
-          }
-        }
-        setup();
-      })()
-    '''
-  afterSetup: ->
-    return unless challenge = $.id 'recaptcha_challenge_field_holder'
-    return if challenge is QR.captcha.nodes.challenge
-
-    setLifetime = (e) -> QR.captcha.lifetime = e.detail
-    $.on window, 'captcha:timeout', setLifetime
-    $.globalEval 'window.dispatchEvent(new CustomEvent("captcha:timeout", {detail: RecaptchaState.timeout}))'
-    $.off window, 'captcha:timeout', setLifetime
-
-    {img, input} = QR.captcha.nodes
-    img.parentNode.hidden = false
-    input.placeholder = 'Verification'
-    QR.captcha.count()
-    $.off input, 'focus', QR.captcha.setup
-
-    QR.captcha.nodes.challenge = challenge
-    new MutationObserver(QR.captcha.load.bind QR.captcha).observe challenge,
-      childList: true
-      subtree: true
-      attributes: true
-    QR.captcha.load()
-
-    if QR.nodes.el.getBoundingClientRect().bottom > doc.clientHeight
-      QR.nodes.el.style.top    = null
-      QR.nodes.el.style.bottom = '0px'
-  destroy: ->
-    $.globalEval 'Recaptcha.destroy()'
-    @beforeSetup()
-
-  sync: (captchas) ->
-    QR.captcha.captchas = captchas
-    QR.captcha.count()
-
-  getOne: ->
-    @clear()
-    if captcha = @captchas.shift()
-      {challenge, response} = captcha
-      @count()
-      $.set 'captchas', @captchas
-    else
-      challenge   = @nodes.img.alt
-      if response = @nodes.input.value
-        if Conf['Auto-load captcha'] then @reload() else @destroy()
-    # Duplicate one-word captchas.
-    # Don't duplicate street numbers for now (needs testing).
-    if response and !/\s|^\d$/.test response
-      response = "#{response} #{response}"
-    {challenge, response}
-
-  save: ->
-    return unless /\S/.test(response = @nodes.input.value)
-    @nodes.input.value = ''
-    @captchas.push
-      challenge: @nodes.img.alt
-      response:  response
-      timeout:   @timeout
-    @count()
-    @reload()
-    $.set 'captchas', @captchas
-
-  clear: ->
-    return unless @captchas.length
-    now = Date.now()
-    for captcha, i in @captchas
-      break if captcha.timeout > now
-    return unless i
-    @captchas = @captchas[i..]
-    @count()
-    $.set 'captchas', @captchas
-
-  load: ->
-    return unless @nodes.challenge.firstChild
-    return unless challenge_image = $.id 'recaptcha_challenge_image'
-    # -1 minute to give upload some time.
-    @timeout  = Date.now() + @lifetime * $.SECOND - $.MINUTE
-    challenge = @nodes.challenge.firstChild.value
-    @nodes.img.alt = challenge
-    @nodes.img.src = challenge_image.src
-    @nodes.input.value = null
-    @clear()
-
-  count: ->
-    count = if @captchas then @captchas.length else 0
-    placeholder = @nodes.input.placeholder.replace /\ \(.*\)$/, ''
-    placeholder += switch count
-      when 0
-        if placeholder is 'Verification' then ' (Shift + Enter to cache)' else ''
-      when 1
-        ' (1 cached captcha)'
-      else
-        " (#{count} cached captchas)"
-    @nodes.input.placeholder = placeholder
-    @nodes.input.alt = count # For XTRM RICE.
-
-  reload: (focus) ->
-    # Hack to prevent the input from being focused
-    $.globalEval 'Recaptcha.reload(); Recaptcha.should_focus = false;'
-    # Focus if we meant to.
-    @nodes.input.focus() if focus
-
-  keydown: (e) ->
-    if e.keyCode is 8 and not @nodes.input.value
-      @reload()
-    else if e.keyCode is 13 and e.shiftKey
-      @save()
-    else
-      return
-    e.preventDefault()
diff --git a/src/Posting/Captcha.v2.coffee b/src/Posting/QR.captcha.coffee
similarity index 98%
rename from src/Posting/Captcha.v2.coffee
rename to src/Posting/QR.captcha.coffee
index a66cccd14..4135efc26 100644
--- a/src/Posting/Captcha.v2.coffee
+++ b/src/Posting/QR.captcha.coffee
@@ -1,4 +1,4 @@
-Captcha.v2 =
+QR.captcha =
   init: ->
     return if d.cookie.indexOf('pass_enabled=1') >= 0
     return unless @isEnabled = !!$.id 'g-recaptcha'
@@ -117,9 +117,9 @@ Captcha.v2 =
     if captcha = @captchas.shift()
       @count()
       $.set 'captchas', @captchas
-      {response: captcha.response}
+      captcha.response
     else
-      {}
+      null
 
   save: (pasted) ->
     reload = QR.cooldown.auto and @needed()
diff --git a/src/Posting/QR.coffee b/src/Posting/QR.coffee
index efdfaa3d1..88cf9865e 100644
--- a/src/Posting/QR.coffee
+++ b/src/Posting/QR.coffee
@@ -7,8 +7,6 @@ QR =
     @db = new DataBoard 'yourPosts'
     @posts = []
 
-    @captcha = Captcha[if Conf['Use Recaptcha v1'] then 'v1' else 'v2']
-
     if Conf['QR Shortcut']
       sc = $.el 'a',
         className: "qr-shortcut fa fa-comment-o #{unless Conf['Persistent QR'] then 'disabled' else ''}"
@@ -97,7 +95,7 @@ QR =
     if QR.nodes
       QR.nodes.el.hidden = false
       QR.unhide()
-      QR.captcha.setup() unless Conf['Use Recaptcha v1']
+      QR.captcha.setup()
       return
     try
       QR.dialog()
@@ -114,8 +112,6 @@ QR =
     QR.cleanNotifications()
     d.activeElement.blur()
     $.rmClass QR.nodes.el, 'dump'
-    if Conf['Use Recaptcha v1'] and !Conf['Captcha Warning Notifications']
-      $.rmClass QR.captcha.nodes.input, 'error' if QR.captcha.isEnabled
     if Conf['QR Shortcut']
       $.toggleClass $('.qr-shortcut'), 'disabled'
     new QR.post true
@@ -123,8 +119,7 @@ QR =
       post.delete()
     QR.cooldown.auto = false
     QR.status()
-    if !Conf['Use Recaptcha v1'] or (QR.captcha.isEnabled and not Conf['Auto-load captcha'])
-      QR.captcha.destroy()
+    QR.captcha.destroy()
   focusin: ->
     $.addClass QR.nodes.el, 'focus'
   focusout: ->
@@ -149,21 +144,9 @@ QR =
     else
       el = err
       el.removeAttribute 'style'
-    captchaErr = QR.captcha.isEnabled and /captcha|verification/i.test el.textContent
-    if captchaErr and Conf['Use Recaptcha v1']
-      if QR.captcha.captchas.length is 0
-        # Focus the captcha input on captcha error.
-        QR.captcha.nodes.input.focus()
-        QR.captcha.setup()
-      if Conf['Captcha Warning Notifications'] and !d.hidden
-        QR.notify el
-      else
-        $.addClass QR.captcha.nodes.input, 'error'
-        $.on QR.captcha.nodes.input, 'keydown', ->
-          $.rmClass QR.captcha.nodes.input, 'error'
-    else
-      QR.captcha.setup true if captchaErr and !Conf['Use Recaptcha v1']
-      QR.notify el
+    if QR.captcha.isEnabled and /captcha|verification/i.test el.textContent
+      QR.captcha.setup true
+    QR.notify el
     alert el.textContent if d.hidden
 
   notify: (el) ->
@@ -566,7 +549,7 @@ QR =
     QR.cooldown.init()
     QR.captcha.init()
     $.add d.body, dialog
-    QR.captcha.setup() unless Conf['Use Recaptcha v1']
+    QR.captcha.setup()
 
     # Create a custom event when the QR dialog is first initialized.
     # Use it to extend the QR's functionalities, or for XTRM RICE.
@@ -657,7 +640,7 @@ QR =
       err = 'Max limit of image replies has been reached.'
 
     if QR.captcha.isEnabled and !err
-      {challenge, response} = QR.captcha.getOne()
+      response = QR.captcha.getOne()
       err = 'No valid captcha.' unless response
 
     QR.cleanNotifications()
@@ -691,7 +674,6 @@ QR =
       textonly: textOnly
       mode:     'regist'
       pwd:      QR.persona.pwd
-      recaptcha_challenge_field: challenge
       'g-recaptcha-response': response
 
     options =
@@ -821,7 +803,6 @@ QR =
         icon: Favicon.logo
       notif.onclick = ->
         QR.open()
-        QR.captcha.nodes.input.focus() if Conf['Use Recaptcha v1']
         window.focus()
       notif.onshow = ->
         setTimeout ->
@@ -831,10 +812,8 @@ QR =
     unless Conf['Persistent QR'] or postsCount
       QR.close()
     else
-      if Conf['Use Recaptcha v1'] and QR.posts.length > 1 and QR.captcha.isEnabled and QR.captcha.captchas.length is 0
-        QR.captcha.setup()
       post.rm()
-      QR.captcha.setup true unless Conf['Use Recaptcha v1']
+      QR.captcha.setup true
 
     QR.cooldown.add req.uploadEndTime, threadID, postID
 
diff --git a/src/Posting/QR.post.coffee b/src/Posting/QR.post.coffee
index 91c7dc115..ef7a4da22 100644
--- a/src/Posting/QR.post.coffee
+++ b/src/Posting/QR.post.coffee
@@ -70,7 +70,7 @@ QR.post = class
     @select() if select
     @unlock()
     # Post count temporarily off by 1 when called from QR.post.rm
-    $.queueTask -> QR.captcha.setup() unless Conf['Use Recaptcha v1']
+    $.queueTask -> QR.captcha.setup()
 
   rm: ->
     @delete()
@@ -133,7 +133,7 @@ QR.post = class
         QR.status()
       when 'com'
         @nodes.span.textContent = @com
-        QR.captcha.onPostChange() unless Conf['Use Recaptcha v1']
+        QR.captcha.onPostChange()
         QR.characterCount()
         # Disable auto-posting if you're typing in the first post
         # during the last 5 seconds of the cooldown.
@@ -162,7 +162,7 @@ QR.post = class
     @filename = file.name
     @filesize = $.bytesToString file.size
     @nodes.label.hidden = false if QR.spoiler
-    QR.captcha.onPostChange() unless Conf['Use Recaptcha v1']
+    QR.captcha.onPostChange()
     URL.revokeObjectURL @URL
     if @ is QR.selected
       @showFileData()