CotEditor

詳細情報

タイトル CotEditor
URL http://coteditor.com/
バージョン ver 5.1.0-beta.2
更新日 2025/02/13
追加日 2013/08/17
種別 フリーソフト
説明 行番号表示、シンタックスカラーリング、OgreKit を使用した正規表現検索、ウィンドウの透明度設定などの機能を持つテキストエディタ。

レビュー

CotEditorは日本生まれのOS X専用のテキストエディタ。エンコーディングの判定や和英が混ざった文書の描画、縦書き表示など日本人向きの機能が豊富に搭載されていることが特徴です。

もちろんそれだけではなく、HTML/PHP/Python/Rubyなど40のメジャーな言語に対応したシンタックスハイライト機能、アウトラインメニュー、ビューの分割機能、スクリプトによるマクロの定義などエディタとしての機能も充実。

VimやEmacsは高機能ですがその分設定も複雑になりがちなので、シンプルに使えるエディタとしてCotEditorは便利に使えそうです。。

現在CotEditorはオリジナル開発者nakamuxu氏の手を離れ、usami-k氏、1024jp氏などが開発されているそうで、ソースコードはGitHubで公開されています。

スクリーンショット

更新グラフ

バージョン履歴

5.1.0-beta.2 Pre-release
Pre-release

system requirements: macOS 14 and later

New Features

  • Display Finder tags in the document inspector and the file browser.

Improvements

  • [beta] Update the Korean and Polish localizations for strings newly added in CotEditor 5.1.0.

Known Issue

  • The texts added in CotEditor 5.1.0 are not localized yet in Dutch.

Full Changelog: 5.1.0-beta...5.1.0-beta.2

5.1.0-beta Pre-release
Pre-release

system requirements: macOS 14 and later

New Features

  • Append the nearest unique ancestor folder name to the document title if multiple documents with the same name are opened.
  • The new “prevent editing” command that prevents documents from being unintentionally edited.
  • Introduce the new AppleScript parameter editable to document objects.
  • Introduce the --readonly (-r) option to the cot command-line tool to open documents as read-only.
  • Read input from the standard input when the cot command-line tool is used with the - option.

Improvements

  • Improve th
(省略されました)
5.0.8

system requirements: macOS 14 and later

Improvements

  • Add missing localization of Unicode block names.

Fixes

  • Fix an issue where the text fields in the syntax editor could restore the contents after the input under certain conditions.
  • Fix a potential crash that rarely occurs when interacting with the Quick Action bar.

Full Changelog: 5.0.7...5.0.8

5.0.7

system requirements: macOS 14 and later

New Features

  • Add title and timestamp options to the AppleScript’s write to console command.

Improvements

  • Provide more Unicode information about the selected character in the document inspector.
  • Prevent the console from hiding when the app goes into the background.
  • Optimize the file browser’s performance when expanding a folder containing a large number of items.
  • Improve the trimming of whitespaces in the extracted outline labels.
  • Modify the syntax highlighting rule to extract strings in the form of “begin-end” string pairs, even if one of those is escaped.
  • Adjust the editor’s initial scroll position.
  • [trivial] Update the layout of the Donatio
(省略されました)
5.0.6

system requirements: macOS 14 and later

New Features

  • Display information about the selected image in the preview view for the file browser.
  • Add the “Add period with double-space” option to the Mode setting options (deselected by default).
  • Add the toolbar item for Writing Tools to the toolbar customization options (only for macOS 15.2 and later and when the Writing Tools feature is available).

Improvements

  • Allow insertion points only at the same number of wrapped lines by rectangular selection.
  • Allow selections only at the same number of wrapped lines by selecting the column up/down.
  • Update the document’s syntax based on the filename when renaming it in the file browser.
  • Always open a file as a plain-text document if its file ext
(省略されました)

system requirements: macOS 14 and later

Improvements

  • [trivial] Omit commands in the Debug (ladybug) menu from the results of the Quick Action bar.

Fixes

  • Fix crashing when opening the Print dialog.

Full Changelog: 5.0.4...5.0.5

5.0.4

system requirements: macOS 14 and later

Improvements

  • Update the Swift syntax to add @Bindable, @ViewLoading, and @WindowLoading attributes.
  • [trivial] Rename “Move Focus” commands.
  • [trivial] Focus on the first input field when opening a dialog.

Fixes

  • Fix an issue in the file browser that the actions in the Add button were disabled when the focus is out of the browser.
  • Fix an issue that the document window position was not saved in some cases.
  • Fix insertion format editors’ behavior in the Snippet settings.
  • [trivial] Fix links in the Licenses pane in the About window.

Full Changelog: 5.0.3...5.0.4

5.0.3

system requirements: macOS 14 and later

Improvements

  • Expand folder items by double-clicking a folder row in the file browser.
  • Directly open .plist files from the file browser instead of previewing.
  • Improve alias file handling in the file browser.

Fixes

  • Fix an issue that the application crashes when an editor is opened while the Font window appears.
  • Fix an issue that the document window size was not properly saved.

Full Changelog: 5.0.2...5.0.3

5.0.2

system requirements: macOS 14 and later

New Features

  • Add Polish localization (Thanks to Rafał Kopicki!).

Improvements

  • Add .awk extension to file types treaded as CotEditor script.
  • Adjust the layout of the file preview view.
  • Update the Swift syntax to add @Test and @Suite attributes.

Fixes

  • Fix an issue that the file encoding menu disappeared from the status bar.
  • Fix an issue that document windows were not properly initialized when the windows minimized on launch.
  • Fix an issue in the file browser that duplicate folders were displayed after renaming a folder.
  • Fix an issue in the file browser that some actions for the root folder were incorrectly disabled.
(省略されました)
5.0.1

system requirements: macOS 14 and later

Improvements

  • Add the “Open as Plain Text” button the preview view for the file browser.
  • Open a file selected in the file browser as plain text when the default app set in the Finder for it is CotEditor.
  • Optimize the performance of the folder browser.

Fixes

  • Fix an issue on macOS 14 that the app crashed when opening a folder containing archive files.
  • Fix an issue that the file/folder in the file browser was not removed even when it was deleted in the actual file storage.
  • Fix an issue that the indent style detection was not applied.
  • Fix the display of the What’s New window in CJK localizations.
  • [AppStore ver.] Fix an issue that the Donation settings pane displayed an unnecessary aler
(省略されました)
5.0.0

system requirements: macOS 14 and later

New Features

  • Folder Navigation: Open folders in CotEditor and browse their contents from the new sidebar to switch documents.
  • Support macOS 15 Sequoia.
  • Support Writing Tools with Apple Intelligence.
  • [AppStore ver.] Now, the user can donate to the CotEditor project via in-app purchase in the new Donate settings pane.
  • Add new “Select Enclosing Symbols” and “Split Selection by Lines” commands to the Edit > Select menu.
  • Add new “Show in Finder” command to the File menu.
  • Add new “Create Document in CotEditor” shortcut action.
  • Add the “Highlight” color to the CotEditor theme format.
  • Support the alpha channel for the current line in theme settings.
  • Add Korean localization (Thanks to M
(省略されました)