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 Chrome ... Microsoft Office Outlook Microsoft Office Word Google Drive - Docs Thunderbird Vim Sublime Text LibreOffice Apache OpenOffice Firefox

43 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

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

7 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

DSpellCheck

Yet Another Notepad++ Spell-checking Plug-In Following main features: Underlining spelling mistakes Iterating through all mistakes in document ...

Free Open Source Windows Notepad++

SSuite Spell Checker

SSuite Spell Checker is a tiny software program whose purpose is to correct the spelling of any text from the Clipboard with just a click of the button. A lightweight...

Free Windows

2 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• Discontinued The program seems to be no longer updated.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• Discontinued The program seems to be no longer updated.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

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