WProofreader

Web · Windows · Linux · Self-hosted · API · Extension· paid plans from €28.33/mo

Freedom report

Three barsScore 6.7

Free tierA free tier is on its own pricing page
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

WProofreader is ranked #49 of 88 in grammar checkers on Freedom251, made by WProofreader (Tallinn, Estonia). It runs on API, Browser extension, Linux, Self-hosted, Web, Windows. There is a free plan. A free trial is offered. Paid plans start at €28.33/mo.

WProofreader plans and pricing

All plans

Free Free up to 20,000 words processed per day · daily word limit · user-level custom dictionary · WProofreader branding wproofreader.com · 11 Oct 2026

Growth €34/mo €34 / month up to 10 million words processed · up to 3 team members · up to 3 custom dictionaries · up to 1 style guide collection wproofreader.com · 11 Oct 2026

Scale €62/mo €62 / month up to 25 million words processed · up to 15 team members · up to 15 custom dictionaries · up to 3 style guide collections wproofreader.com · 11 Oct 2026

Enterprise Unlimited usage for self-hosted wproofreader.com · 22 Sept 2026

Growth €340/yr €340 / year up to 120 million words processed · up to 3 team members · up to 3 custom dictionaries · up to 1 style guide collection wproofreader.com · 11 Oct 2026

Scale €620/yr €620 / year up to 300 million words processed · up to 15 team members · up to 15 custom dictionaries · up to 3 style guide collections wproofreader.com · 11 Oct 2026

Compared on grammar checkers

Free plan: Yes
Browser extension: Yes
Style suggestions: Yes
Tone detection: No

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The record

What it does: WProofreader provides multilingual spelling, grammar, punctuation, and style checking, with AI writing assistance for rewriting and summarizing text.
Language coverage: The product page describes proofreading in 20+ languages and says AI-driven checking is available for English, German, and Spanish.
AI writing assistant: The assistant can shorten, expand, rewrite, improve style, change formality, summarize, and proofread text; its daily usage quotas depend on the subscription plan.
Integrations: Supported integrations include CKEditor 5, CKEditor 4, Froala, TinyMCE, Quill, Tiptap, Syncfusion, Slate, Draft.js, Moodle, Drupal, and WordPress.
Browser support: The browser extension supports Chrome, Firefox, and Microsoft Edge.
Deployment: WProofreader offers cloud and self-hosted deployment; its self-hosted option can run within a customer's private cloud or on-premises infrastructure.
Security: The security page states that data in transit uses TLS 1.3 and data at rest uses AES-256, and that processed texts are not collected for further use.
Certifications: The maker says it does not currently have official SOC 2 or ISO/IEC 27001 security certifications, while stating that its operations align with ISO/IEC 27001.
Cloud hosting: The cloud infrastructure is hosted on AWS in the Northern Virginia region of the United States.
Notable usage limits: The free SDK plan allows up to 20,000 words processed per day, while the extension page states a daily limit of 20,000 words for Free and 50,000 for Business.
Trial: The maker offers a 14-day evaluation period for the cloud SDK and a 30-day evaluation period for the on-premises SDK.
Support: The product team says it responds to technical and sales requests within one business day and can guide customers through setup.
Accessibility: The product is regularly tested for accessibility, supports keyboard navigation, and meets the majority of WCAG 2.1 Level A and AA success criteria.
Intended customers: The maker describes WProofreader as built for businesses and organizations, including healthcare, education, banking and finance, and legal users.
Price from: €28.33/mo

Where it ranks on Freedom251

Best Grammar Checkers in 2026#49 of 88

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Sources

wproofreader.com· checked 11 Oct 2026
wproofreader.com/features· checked 11 Oct 2026
wproofreader.com/ai-writing-assistant· checked 11 Oct 2026
wproofreader.com/integrations· checked 11 Oct 2026
wproofreader.com/browser-extension· checked 11 Oct 2026
wproofreader.com/security· checked 11 Oct 2026