LanguageTool

Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome. Also available as a standalone application. Supports about 20 languages (on different levels)...

Freemium $ $ $ Open Source Mac Windows Linux Web Android ... Chrome Microsoft Office Outlook SDL TRADOS Visual Studio Code Microsoft Office Word Eclipse TinyMCE TeXstudio Google Drive - Docs Thunderbird Vim OmegaT Sublime Text GNU Emacs Fidus Writer LyX LibreOffice <oXygen/> XML Editor Apache OpenOffice Firefox

49 Like

Ginger

Ginger Keyboard is the world’s first smartphone keyboard to offer advanced writing tools, including live as-you-type proofreading, alongside standard and advanced...

Freemium Windows Android iPhone Chrome OS Android Tablet ... iPad

23 Like

Druide Antidote

Whether you’re writing a letter or an email, a simple click of a button will open some of the most comprehensive and useful language resources ever created.

Commercial $ $ $ Mac Windows Linux iPhone iPad

12 Like

tinySpell

Occasionally you need to check spelling in an application that does not include a spelling checker and you dont want to launch your word processor just for that. This is...

Freemium Windows

13 Like

PaperRater

Grammar & Spelling Check; Free Online Proofreading; No Downloads...Allows you to find those pesky mistakes and correct them before your teacher does...

Freemium Web

8 Like

CocoAspell

cocoAspell is Mac OS X interface to Aspell – A more intelligent Ispell – that is being developed by Kevin Atkinson. Aspell is an Open Source spell checker designed to...

• Discontinued The program seems to be no longer updated. Last version, 2.5, released in November 2016, can be still downloaded from the official website.

Free Open Source Mac

1 Like

SpellCheckPlus

SpellCheckPlus is a grammar checker that finds common spelling errors and grammatical mistakes in English.

Freemium Web

Speckie

Speckie is the first and only dedicated, real-time spell check solution for Internet Explorer and Outlook. Real-time spell checking as you type. Spell check with...

• Discontinued The program seems to be no longer updated. Last version, 7.3, released in March 2016, can be still downloaded from the official website.

Free Personal Windows Internet Explorer Microsoft Office Outlook

5 Like

Asutype

Automatic on-the-fly spell checking. Asutype checks and alerts you to any mistake that you may make while typing both audibly and visually so you can optionally take...

Commercial Windows

2 Like

FreeSpell

FreeSpell is a spell checker for any and all Windows applications. You can use it in Microsoft Outlook, Firefox, Visual C++, and even in Windows Explorer when renaming...

• Discontinued The program is no longer updated. Last version, 4.5, released in February 2009, can be still downloaded from the official website.

Freemium Windows