Writefull

The majority of users do not need to sign in to access Writefull and will have access automatically through Overleaf. However, if you are asked to sign in and haven’t used Writefull before, then select the One-click sign-in with Overleaf to do so.

If you already have a Writefull account, you will be guided to sign in via your Overleaf credentials, meaning you no longer have to enter your email address and password to access Writefull. This process was introduced in early 2025 to ensure the best possible experience for all users.

The Overleaf and Writefull teams are both part of the same company, Digital Science, and work closely together.

You can turn Writefull for Overleaf on and off in the Integrations section of your Account Settings page.

Turning off the integration will remove the Writefull icon and tools from your Overleaf toolbar. You can turn on the Writefull for Overleaf integration at any time.

Select the Writefull icon in the toolbar to show the Writefull toolbar if it is hidden, and the Settings to access the language check options. From there you can turn off Writefull's language check.

Yes, you can toggle the Writefull toolbar using the Writefull icon.

No, your project data and your interactions are not used to train AI models. Writefull trains its models on published papers, not on Overleaf project data. If you use Writefull features (such as the GPT language model or TeXGPT) that use a third-party service, such as OpenAI’s GPT model, your text is not used by that AI provider for training purposes.

Yes, your privacy and your projects are protected. Writefull never stores your text, nor does it use your text or interaction to train its proprietary AI models. Some of Writefull’s features (such as the GPT language model or TeXGPT) use a third-party service such as OpenAI’s GPT model. If you choose to use these features, your text may be sent to and temporarily stored by this third-party service provider, but will not be used for training their models. You’re informed before using Writefull features that involve third-party access, with explicit consent needed from you before your text can be sent to their servers. Your data is never sold to third parties or shared for advertising purposes. Please see Overleaf's privacy notice, and Writefull's privacy notice for more information.

When the language check is applied to your project, the language check model does not learn from your text. By default, the language check uses Writefull's language model to check your text, and Writefull never stores your text, nor does it use your text or interaction to train its proprietary AI models. If you choose to use the OpenAI's GPT model, your text may be temporarily stored by this third-party service provider, but your text is never used to train any AI.

The level of AI support you use is entirely up to you. You can use Writefull for a language revision only, or use the text rewriting/rephrasing features. Choose what feels right to you, and make sure to follow your institution’s or publisher’s policy on responsible use of AI technology.

Writefull’s AI tools are designed to help you craft, rephrase, and improve your research texts. They are powerful tools, which should be used responsibly. Use them to explore different ways of expressing your thoughts and findings, but not to replace your own writing efforts.

Please make sure to consult your institution's policy on academic integrity to find out if these include guidance on the use of AI-assisted language tools or generative AI. If you can’t locate a policy for your institution, or if you have questions about it, it’s important to ask your professor or an academic advisor about institutional, departmental, and course-specific guidelines on using these tools.

Overleaf subscriptions provide a number of premium features. The Writefull for Overleaf features are separate from Overleaf subscriptions. You can upgrade your Overleaf subscription and stay on Writefull's free plan, upgrade to use Writefull paid features only, or both. Overleaf subscription options are described on our plans page. For information about Writefull's subscription options, please see the Writeful premium plans page.

If you already have a Writefull account registered to a different email address than the one you use for Overleaf, you can link this email address to your Overleaf account at the top of your Account Settings page.

For information on how to delete your Writefull account, please see How to manage my Writefull account in the Writefull Help Center.

Sometimes, unlinking your accounts might be necessary, for example, if you want to switch from a personal to an institutional subscription.

If you need to unlink your accounts:

• Log into your Writefull account (https://my.writefull.com/login)

• Go to your account page (https://my.writefull.com/account)

• In the Overleaf section, click the Unlink button