Here is a list of best free Grammar Checker Software for Windows. These Grammar Checker Software let you check grammar easily. All these Grammar Checker Software are completely free and can be downloaded to Windows PC. These programs lets you check Grammar as well as Spellings. Some can be called from other programs using hotkey, while other use their own window for checking Grammar and Spellings. You can open and check grammar from TXT, DOC, and/or DOCX files also with some of these programs. You can apply the suggestions after proof-reading. Some lets you Undo/Redo changes made. These free grammar and spell check software are also available as extension for popular web browsers like Google Chrome, Firefox etc.
My favorite free Grammar Checker Software is:
As per my testing, “Ginger” is the best Grammar Checker Software, as it checks grammar and spellings within various programs as well as on its own interface.
Ginger is the best free Grammar Checker Software for Windows. It lets you check grammar mistakes and spelling mistakes. You can use it to check grammar and spelling for your typed content in various programs, as well as in its inbuilt writer. It works with MS Word, MS PowerPoint, MS Outlook, Firefox, Internet Explorer, etc. You have to press F2 key from your keyboard to start checking Grammar and Spelling using Ginger. It checks and suggests the corrections on screen. You can accept these changes by clicking once. To use this free grammar checker, you need to login to your free account. You can change its default settings like its hotkey, start with Windows or not, language (English-US or English-UK), font size etc. You can use its Grammar and Spell Check Extension for Google Chrome and Safari also. The program is available for Android and iOS platforms too.
LanguageTool is an Open Source free proof-reading program. The program is java based and java must be installed to use it. The program does not require installation and comes in ZIP format. This free proof-reading program is for English, German, French, Polish, and other more than 20 languages. Apart from standalone Desktop version, this program is available for LibreOffice, OpenOffice and as well as Firefox extension. You can type or paste text from other applications in it for proof-reading. You can also open TXT or other compatible files with it for checking Grammar and Spelling. You can enable its auto check function if you want it to check errors automatically while typing. Check text in clipboard feature is also there which automatically paste the text from clipboard to its window for checking errors. After finishing the proof-reading, you can save the output in TXT format. It has Undo and Redo functions in its Edit menu. You can hide it to system tray by pressing Crtl + D key or from choosing this command from File menu. Its online version is also available.
1Checker is a free and easy to use Grammar Checker software. It lets you check Grammar errors as well as Spelling error. To use this free grammar checking software, you need to login in it by using your Facebook account. For checking mistakes in text, you have to copy and paste the text and click on Review button on its main toolbar. It then shows you the three graphs for Spelling Mistakes, Grammar Mistakes, and Other Mistakes. You can load any TXT, DOC, and/or DOCX file also for checking Grammar and Spelling mistakes by clicking Open button on its Toolbar. It changes the error text color to Red and shows the suggestion below every error it finds. You can make corrections by clicking the suggested text or can apply all in bulk by clicking "Apply all" button. Dictionary and Translation features are also there. After finishing, you can save the document in TXT, DOC, or DOCX format.
Grammarly is a simple and easy to use Google Chrome Extension for checking Grammatical and Spelling mistakes. To use this extension, you needs to create a free online account with it. Whenever you type any content on a website (like, email), it checks for spelling and grammar errors, and underlines incorrect words and gives you suggestions. You can click "CORRECT WITH GRAMMARLY" for the correct word and sentence. It also has an online app for the same purpose. You can upload the documents to it for checking Grammar and Spelling mistakes.
After the Deadline is a nice Grammar checking software, that comes from Automattic (the makers of Wordpress). it has modules for OpenOffice, Windows Live Writer, as well as a Firefox extension for checking Spelling and Grammar. After installing, you can configure its hotkey and other settings from Firefox Add-ons page. It highlights the spelling errors with red line, while grammatical errors underline by green line. You can go to the error and right click for suggestions. You can accept or ignore the suggestion as per need. It also has "Ignore all" command in its context menu for bulk ignoring the errors highlighted by it. Unfortunately, the Firefox extension didn't work very well for me during my testing, but going by its reputation, I suggest you give it a shot.