H
HReadability editor that flags wordy, unclear writing and offers AI fixes
From $8.33/mo
LanguageTool vs WordAi
Pricing, features, platforms and who each one suits — side by side.
L
Choose LanguageTool if…
- you want a free plan to start with
- you want open source you can self-host or audit
- you work on Chrome, Windows, macOS
- you're in its core audience: students, professional writers
W
Choose WordAi if…
- you want to trial it before paying
- you're in its core audience: seo publishers, content marketers
Side by side
Feature LanguageTool WordAi
Pricing modelFreemiumFree trial
Starting price—$9/mo
Free plan
Free trial
API
Open source
Trains AI on your contentNo—
Security and complianceGDPR—
Tone adjustment—
Non-English checking—
Word/Google Docs add-in—
Browser extension—
Custom style guide—
PlatformsWeb, Chrome, Windows, macOS, iOS, APIWeb, API
CategoryGrammar & ProofreadingParaphrasing & Rewriting
Rank in its category#3 of 5—
CompanyLearneo, Inc.Cardinell Enterprises LLC dba Cortx
Based inUnited StatesUSA
Founded2003—
Part of——
Key features
L LanguageTool
- Grammar, spelling, punctuation and style checking
- AI sentence paraphrasing in several tones
- Support for 30+ languages and dialects
- Browser add-ons for Chrome, Edge, Firefox, Opera, Safari
- Plugins for Google Docs, Word, Pages, LibreOffice
- Personal dictionary and Picky Mode
- Team style guides and shared dictionaries
- Proofreading API with daily call-limit plans
W WordAi
- Sentence restructuring and splitting
- Adjustable creativity level
- Up to 1,000 rewrites per article
- Bulk rewriting and bulk export, including spintax
- HTML support and code view
- Spelling and grammar fixes
- Article Forge integration for importing articles
- API for adding rewriting to workflows
Plans and prices
From each vendor's site. Prices change — confirm before buying.
LanguageTool
BasicFree
PremiumPrice not shown on page
TeamsPrice not shown on page
BusinessCustom
WordAi
Starter$17/mo or $9/mo billed annually
Power$57/mo or $27/mo billed annually
EnterpriseCustom
Strengths and limitations
LanguageTool
- Free Basic plan is available
- Supports 30+ languages and dialects
- Many integrations, including browsers, office suites and email clients
- Source code is published on GitHub
- Free plan is limited to 2,000 characters per text field
- Free plan allows only 3 AI rephrasings per day
- Prices did not display on the pricing pages
- Outlook add-on is still in beta
WordAi
- Annual billing cuts the price to $9/mo for Starter
- 3-day free trial plus a 30-day money-back guarantee
- API access on the Starter and Power plans
- Power plan includes 3,000,000 rewrite words a month
- No free plan, only a time-limited trial
- Refund applies only if you have rewritten fewer than 10 articles
- No desktop or mobile apps listed
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W
AI rewriting, summarizing and grammar assistant for everyday writers
Paraphrasing & RewritingFree plan
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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy