LanguageTool!

Grammarly Editor is an automated proofreader that corrects contextual spelling mistakes, checks for more than 250 common grammar errors, enhances vocabulary usage, and suggests citations.

Ludwig is a linguistic search engine that lets you search and solve your linguistic doubts, helpsyou to turn your ideas into well written texts, makes you more independent and confident at your job.

A tool to check creative and technical writing for potential improvements.

Antidote is a complete set of software reference tools for writing French. It includes an advanced grammar checker with smart filters, a rich collection of dictionaries, and a set of interactive language guides. Seamlessly integrated with major word processors and email programs, Antidote's tools are available instantaneously right from your text.

ProWritingAid is your free online writing editor and personal writing coach. Of course it checks your grammar but it does much more to help you improve your writing:

Slick Write is a powerful, free tool that makes it easy to check your writing for grammar and spelling errors, potential stylistic mistakes, and other features of interest. Whether you're a blogger, novelist, or student writing an essay for school, Slick Write can help take your writing to the next level.

Writefull is a light-weight app that provides feedback on your writing by checking your text against databases of correct language.

AnySpell adds spell checking capabilities to any application in Windows that uses edit boxes - in any language supported by OpenOffice dictionaries.It can also be used by developers as a library to add spell checking capabilities to their applications.

We use artificial intelligence and natural language processing technology to find your writing errors and offer smart suggestions.

Analyze My Writing is an online text content and readability analyzer. Copy and paste a text into the homepage and gain a wealth of information about your text including word and character counts, word and sentence lengths, the readability of your text, and other analyses.

just-not-sorry - Gmail Plug-in that warns you when you write emails using words which undermine your message

SEO Tools Centre provides SEO checker services for websites. Here you will find different types of SEO tools: backlink checker, article rewriter, keyword position checker and many others useful services!

Online grammar check, proofreading and copy editing services. Our professional grammar editors will give you online proofreading and copy editing services at affordable prices.

VirtualWritingTutor is a 100% free grammar checker that finds common spelling and grammar errors in English for learners of English as a Second Language.