diff --git a/autoload/codefmt/cmakeformat.vim b/autoload/codefmt/cmakeformat.vim
new file mode 100644
index 0000000..c73ce39
--- /dev/null
+++ b/autoload/codefmt/cmakeformat.vim
@@ -0,0 +1,78 @@
+" Copyright 2017 Google Inc. All rights reserved.
+"
+" Licensed under the Apache License, Version 2.0 (the "License");
+" you may not use this file except in compliance with the License.
+" You may obtain a copy of the License at
+"
+"     http://www.apache.org/licenses/LICENSE-2.0
+"
+" Unless required by applicable law or agreed to in writing, software
+" distributed under the License is distributed on an "AS IS" BASIS,
+" WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+" See the License for the specific language governing permissions and
+" limitations under the License.
+
+
+let s:plugin = maktaba#plugin#Get('codefmt')
+
+
+""
+" @private
+" Formatter: cmake-format
+function! codefmt#cmakeformat#GetFormatter() abort
+  let l:formatter = {
+      \ 'name': 'cmake-format',
+      \ 'setup_instructions': 'Install cmake-format from ' .
+          \ 'https://cmake-format.readthedocs.io/en/latest/installation.html ' .
+          \ 'and configure the cmake_format_executable, ' .
+          \ 'cmake_format_config flags'}
+
+  function l:formatter.IsAvailable() abort
+    return executable(s:plugin.Flag('cmake_format_executable'))
+  endfunction
+
+  function l:formatter.AppliesToBuffer() abort
+    if &filetype is# 'cmake'
+      return 1
+    endif
+  endfunction
+
+  ""
+  " Reformat buffer with cmake-format.
+  "
+  " Implements format(), and not formatrange{,s}(), because cmake-format
+  " doesn't provide a hook for formatting a range, and cmake files are
+  " supposed to be fully formatted anyway.
+  function l:formatter.Format() abort
+    let l:cmd = [s:plugin.Flag('cmake_format_executable')]
+
+    " Append configuration style.
+    let l:config = s:plugin.Flag('cmake_format_config')
+    if !empty(l:config)
+        if type(l:config) is# type('')
+          let l:cmd += ['-c', l:config]
+        else
+          throw maktaba#error#WrongType(
+              \ 'cmake_format_config flag must be string. Found' 
+              \ , string(l:config))
+        endif
+    endif
+
+    " Append filename.
+    let l:fname = expand('%:p')
+    if empty(l:fname)
+        return
+    endif
+    let l:cmd += [l:fname]
+
+    " Generate formatted output.
+    let l:input = join(getline(1, line('$')), "\n")
+    let l:result = maktaba#syscall#Create(l:cmd).WithStdin(l:input).Call()
+    let l:formatted = split(l:result.stdout, "\n")
+
+    " Overwrite buffer.
+    call maktaba#buffer#Overwrite(1, line('$'), l:formatted[0:])
+  endfunction
+
+  return l:formatter
+endfunction
diff --git a/instant/flags.vim b/instant/flags.vim
index 97d0959..2278baf 100644
--- a/instant/flags.vim
+++ b/instant/flags.vim
@@ -66,6 +66,17 @@ call s:plugin.flags.clang_format_executable.AddCallback(
 " See http://clang.llvm.org/docs/ClangFormatStyleOptions.html for details.
 call s:plugin.Flag('clang_format_style', 'file')
 
+""
+" The path to the cmake-format executable. String, list, or callable that
+" takes no args and returns a string or a list.
+call s:plugin.Flag('cmake_format_executable', 'cmake-format')
+
+""
+" The path to the cmake-format configuration file for cmake-format to use.
+" See https://cmake-format.readthedocs.io/en/latest/installation.html for
+" details.
+call s:plugin.Flag('cmake_format_config', '')
+
 ""
 " The path to the gofmt executable. For example, this can be changed to
 " "goimports" (https://godoc.org/golang.org/x/tools/cmd/goimports) to
diff --git a/plugin/register.vim b/plugin/register.vim
index 1770f4c..3d284ad 100644
--- a/plugin/register.vim
+++ b/plugin/register.vim
@@ -27,6 +27,7 @@ call s:registry.AddExtension(codefmt#prettier#GetFormatter())
 call s:registry.AddExtension(codefmt#rustfmt#GetFormatter())
 call s:registry.AddExtension(codefmt#jsbeautify#GetFormatter())
 call s:registry.AddExtension(codefmt#clangformat#GetFormatter())
+call s:registry.AddExtension(codefmt#cmakeformat#GetFormatter())
 call s:registry.AddExtension(codefmt#gofmt#GetFormatter())
 call s:registry.AddExtension(codefmt#dartfmt#GetFormatter())
 call s:registry.AddExtension(codefmt#black#GetFormatter())