StyleGuard
StyleGuard Pro is a text proofing system that checks spelling, style, word usage, and proper names while you write.
What StyleGuard is
StyleGuard Pro is a text proofing system that checks spelling, style, word usage, and proper names while you write. It tracks changes and suggests fixes as text is entered. Writers can proof against references such as The Associated Press, The Canadian Press, and the Financial Times, or use custom dictionaries. StyleGuard Manager supports custom entries and shared dictionaries and style rules. Installers are listed for Safari, Chrome or Chromium, Firefox, Edge, Google Docs, Outlook, PowerPoint, and Word; editor support also includes Adobe InDesign. Its API can connect the proofing engine to web CMS or editorial production systems. The subscription is cloud-based and requires internet access for cloud text analysis. Plans include Financial Times Style Guide at $89.99 a year, Plain Language Style Guide at $89.99 a year, Canadian Press Stylebook and Caps & Spelling at C$125 a year, and Plain Language for Adobe InDesign at $349 a year. A free trial is available.
Good
- Live spelling and style suggestions
- Custom dictionaries and shared rules
- Browser and office integrations
- API for CMS connections
- Free trial available
Watch out
- Cloud subscription requires internet
- Personal data is processed
- Plan prices vary by style guide
- Web support requires recent browsers
Who it suits
StyleGuard suits students, freelancers, institutions, companies, and media organizations that need shared style rules or reference-based proofing. It also fits teams integrating proofing into web or editorial systems.
Verdict
StyleGuard combines reference-based proofing, custom terminology management, and team sharing across browsers, office tools, and an API. Its cloud requirement and guide-specific pricing are important considerations for organizations planning deployment.
Plans and prices
From StyleGuard's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Financial Times Style Guide | $89.99 a year | Financial Times Style Guide · British English · StyleGuard Manager · 3 custom guides (250 custom entries) · macOS, Windows and Chromebook · $ 89.99 / year |
| Plain Language Style Guide | $89.99 a year | Plain Language Style Guide · 3 custom guides (250 custom entries) · browser plug-ins and Microsoft Word plug-in · $ 89.99 / year |
| Canadian Press Stylebook and Caps & Spelling | C$125 a year | Canadian English · usage and synonyms · StyleGuard Manager · maximum 250 custom entries · Starts at CAD 125.00 for one-year subscription for one user |
| Plain Language for Adobe InDesign | $349 a year | Plain Language guidance for Adobe InDesign · $ 349.00 / year |
The facts
Each one read from StyleGuard's own pages, with the date it was checked.
What it does
- API
- The company says its API can connect the proofing engine directly to web CMS or editorial production systems.checked 30 Sep 2026
- Cloud requirement
- StyleGuard Pro is subscription- and cloud-based and requires an internet connection to use its cloud text analysis engines.checked 30 Sep 2026
- Customization
- StyleGuard Manager lets users create custom entries and share dictionaries and style rules with other users.checked 30 Sep 2026
- Integrations
- Installers are listed for Safari, Chrome or Chromium browsers, Google Docs, Firefox, Edge, Outlook, PowerPoint and Word.checked 30 Sep 2026
- Intended users
- The company identifies students, freelancers, private institutions, corporations and media organizations among its customers.checked 30 Sep 2026
- Live suggestions
- StyleGuard tracks changes and suggests fixes as users type.checked 30 Sep 2026
- Office compatibility
- Cross-platform Office add-ins support Microsoft 365 or Office 2016 (16.0.11629) or newer, while Windows desktop add-ins support Office 2013 or newer.checked 30 Sep 2026
- Privacy
- The privacy policy says Lingofy AS processes personal data such as names, email addresses, services used and proofing-system choices.checked 30 Sep 2026
- Product
- StyleGuard Pro is a text proofing system that checks spelling, style, word usage and proper names.checked 30 Sep 2026
- Security
- The privacy policy describes regular risk assessments, technical systems and procedures intended to prevent unauthorized access to personal data.checked 30 Sep 2026
- Style references
- Users can proof against references such as The Associated Press, The Canadian Press and the Financial Times, or use custom dictionaries.checked 30 Sep 2026
- Support
- Users can contact the support team at [email protected].checked 30 Sep 2026
The company
- Headquarters
- Oslo, Norwaychecked 28 Sep 2026
- Maker
- The website identifies Lingofy AS as the owner of the StyleGuard trademark and lists its address in Oslo, Norway.checked 30 Sep 2026
Where it runs
- Supported browser versions
- StyleGuard Pro for Web supports Chrome, Safari, Firefox, Edge and Chromium-based browsers updated within the last three years.checked 30 Sep 2026
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