A new way of writing with confidence

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Writefull is a light-weight app that provides feedback on your writing by checking your text against databases of correct language.
You can use Writefull in any writing tool - from MS Word to Gmail. Simply select a piece of text, hit the short-key to activate the Writefull popover, and choose one of its five options.

Writefull has been featured in:


Writefull offers five options:

Language Data

Writefull uses Natural Language Processing and the three language databases below to give you feedback.

Google Books

Contains data from 5+ million books. It currently consists of English books only, but other languages will be added soon.

Google Web

Contains data from Web pages that Google has indexed over the years, covering 36 languages.

Google Scholar

Contains data from academic papers and reports in a wide range of disciplines, covering 9 languages.

We are constantly improving Writefull by adding new languages and features. All software updates are free.
Follow us on Twitter to stay up to date.

Sign up now!

You need an account to start using Writefull.
If you already have one, you can download the last version below.
Note that Writefull requires MacOS 10.8 or higher or Windows 7 or higher(64 bits)

Limited Offer

Select a plan:

$51 month

$156 months

$2512 months

  • Unlimited Google Books queries
  • Unlimited Google Web queries
  • Unlimited Google Scholar queries
  • Use your account in up to 2 devices
  • Free Software Updates

Sign-up form

Your plan will not automatically renew at the end of the period.

Tick this box if you're a student/staff member in an educational institution. Students and staff members get a 25% discount. Please use your school/university email address so that we can verify your student/staff status. Note that your account won't be active before we've done this check.
I accept the Terms of Service.

Total:   $25


We offer group discounts to companies and educational institutions.
Get in touch for details.


This section addresses a number of common questions. If your question is not here just drop us a line.
Writefull uses large language databases to search for the frequency of chunks of text. The two databases used are Google Books and Google Web. All you need to do is select a chunk of text (in whatever writing tool you use), activate the Writefull popover, and request the information you need. Check out the tutorial for more information.
Yes you do, as Writefull uses a database which is stored in the Internet.
Yes, you can use Writefull in up to two computers.
Just click here and follow the steps.
You can access Writefull Preferences by clicking on the Writefull icon (on the status bar if you're using a Mac, or in the tray bar if you're using a Windows PC). The Writefull icon looks like a small black text balloon.
1. Click Start.
2. Type “system” in the Search Programs and Files field, and then click System in the Programs list.
Note: Do not press ENTER after typing "system", instead wait until the search has generated its list.
3. The operating system appears as follows:
- For a 64-bit version operating system: “64-bit Operating System” appears as the System type under System.
- For a 32-bit version operating system: “32-bit Operating System” appears as the System type under System.
No need to cancel. Just let your subscription run out – that’s all.
At Writefull we take your privacy seriously. Writefull will cache some searches, but these won’t be associated to your username. They will only be used for speeding up future searches.
The way Google Books organises its data is in ‘groups’ of tokens, ranging from 1 to 5 tokens each. So when searching the database for a chunk, you cannot search for more than 5 tokens at once. Note that tokens also include symbols such as the apostrophe (‘) and hyphen (-); so don’t count words only! A selection of ‘this isn’t your well-being’ contains 5 words, but 8 tokens. This is a limitation of Google Books, and is exactly why we also provide Web searches.
Google Books provides a series of databases, each containing books in a specific language. Each database is absolutely massive, taking a great deal of space in the server. That’s why we only have the English one at this point, but we do plan to add more languages in the future. You can tell us which language(s) you want support for here.
New student accounts are manually checked by us to make sure that the email address belongs to an educational institution. Most of the time this check doesn't take more than a few minutes. If you signed up more than 24 hours ago, please write us here indicating the email address you used for signup.
This happens when you're still signed in with the demo account. You need sign out first, and then sign in with your own account (the one you signed up with). You can do this in Writefull Preferences.
You can open Writefull by pressing and holding Ctrl and clicking on the Writefull icon and then selecting open. Find more info from Apple here.
Yes – always welcome! Tell us what you think here.

Download Writefull 2 now!

Note that you need an account to use Writefull.

Download for Mac Download for Windows (Beta)