Best of
Top 9 AI Writing Tools for Professionals in 2026: Ranked by Output That Actually Works
Jun 14, 2026 · 14 min read
G
Grammarly
AI writing assistant for grammar, tone, rewrites and AI-text detection
Freemium grammarly.com
Own Grammarly? Claim it, free to correct the facts and get the verified badge.
grammarly.com
Pricing
Freemium
Free trial
Yes
Platforms
WebWindowsmacOSiOSAndroidChrome
What is Grammarly?
Grammarly is an AI writing assistant that checks spelling, grammar and clarity, and suggests rewrites as you type. It also adjusts tone for different audiences and includes a Reader Reactions feature that predicts how readers may take a message.
It runs in desktop apps for Windows and Mac, in browser extensions for Chrome, Safari, Firefox and Edge, and inside Microsoft Office and Google Docs. Mobile apps are available for iPhone, iPad and Android. Other tools include a Humanizer agent, an AI Detector, a plagiarism checker, a citation generator, a translator, a paraphraser and AI chat.
The free plan suits individuals who need basic proofreading. Pro adds full-sentence rewrites, plagiarism and AI-text detection, and more AI prompts. Enterprise adds controls for organizations, including SSO, SCIM, data loss prevention, BYOK encryption and style guides. Grammarly is now part of Superhuman.
Key features
- Real-time spelling, grammar and clarity checks
- Paragraph and full-sentence rewrites
- Tone suggestions for different audiences
- Reader Reactions predicts how readers respond
- AI Detector and Humanizer agents
- Plagiarism checker and citation generator
- Works in MS Office, Google Docs and browsers
- Enterprise style guides, brand tones and DLP
Use cases
Who it's for
StudentsProfessionalsContent writersBusiness teamsEnterprises
Proofreading everyday writing
Catch spelling and grammar errors in emails, documents and messages across apps and browsers.
Adjusting tone for work messages
Get tone suggestions and rewrites so messages fit the audience and context.
Checking originality
Pro users can run plagiarism and AI-text detection before submitting or publishing work.
Enforcing company writing standards
Enterprise teams can apply style guides and brand tones with SSO and data loss prevention.
Grammarly pricing
From the vendor's site, checked Oct 26, 2026; we re-check prices monthly. Prices change — confirm on their pricing page.
Free
month
€0
- Spelling and grammar checks
- Tone visibility
- 100 AI prompts per month
Pro
month
€12/member/mo billed annually (€30 billed monthly)
- Full-sentence rewrites and tone adjustment
- Plagiarism and AI-text detection
- 2,000 AI prompts per member per month
- Free trial available
Enterprise
contact sales
Custom
- SAML SSO, SCIM, custom roles
- Data loss prevention and BYOK encryption
- Unlimited AI prompts per member
What the free plan gets you
- Generate text with 100 AI prompts (100 prompts / month)
- 1 style guide
- 1 brand tone
- User groups: 2
How Grammarly compares
- Grammarly has a free plan, like 3 of the 4 alternatives below.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| G | — | — | — | |||
H Hemingway Editor | $8.33/mo | — | — | — | Grammarly vs Hemingway Editor | |
L LanguageTool | — | — | Grammarly vs LanguageTool | |||
P ProWritingAid | — | — | — | — | Grammarly vs ProWritingAid | |
G Ginger | — | — | — | Grammarly vs Ginger |
Compare 8 capabilities
| Capability | Grammarly | Hemingway Editor | LanguageTool | ProWritingAid | Ginger |
|---|---|---|---|---|---|
| AI rewrites | — | ||||
| Tone adjustment | — | — | |||
| Plagiarism checker | — | — | — | ||
| AI text detection | — | — | — | — | |
| Non-English checking | — | — | — | ||
| Word/Google Docs add-in | — | ||||
| Browser extension | — | — | |||
| Custom style guide | — |
Capabilities as stated on each vendor's own site; — means the site doesn't say. The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Grammarly data and privacy
Trains AI on your content
Yes, unless you opt out
“You can opt out of allowing Grammarly to use your content to train its models and improve its product for everyone. To do so, turn off Product Improvement and Training in your account settings.”
Data retention
Saved documents kept until you delete them or your account
“if you save a document in the Grammarly Editor, we’ll store it until you delete the document or your Grammarly account.”
Where data is stored
Not stated
Security and compliance
SOC 2 Type II
From Grammarly's own privacy and security pages , checked Oct 28, 2026. We only show what the vendor states in writing; “not stated” means the pages don't say.
Who's behind Grammarly
- Company
- Superhuman Platform Inc.
- Based in
- San Francisco, United States
- Founded
- 2009
- Founders
- Max Lytvyn, Alex Shevchenko, Dmytro Lider
- Part of
- Superhuman
“In 2009, Max Lytvyn, Alex Shevchenko, and Dmytro Lider founded Grammarly with a simple goal”
“In 2009, Max Lytvyn, Alex Shevchenko, and Dmytro Lider founded Grammarly”
“Grammarly is now a part of the Superhuman Suite .”
From Grammarly's own about, terms and privacy pages and Wikidata, checked Oct 28, 2026.
Pros and cons
Strengths
- Free plan includes grammar checks and 100 AI prompts a month
- Available on desktop, mobile, browser extensions, MS Office and Google Docs
- Pro includes plagiarism and AI-text detection
- Enterprise offers SSO, SCIM, BYOK and data loss prevention
Limitations
- Pro costs €30 when billed monthly versus €12 billed annually
- Free plan is limited to 100 AI prompts per month
- Enterprise pricing is not published
Grammarly FAQ
Is Grammarly free?
Yes. The Free plan includes spelling and grammar checks, tone visibility and 100 AI prompts per month.
How much does Grammarly Pro cost?
Pro is €12 per member per month billed annually, or €30 billed monthly. A free trial is offered.
Which platforms does Grammarly support?
Windows and Mac desktop apps, extensions for Chrome, Safari, Firefox and Edge, MS Office and Google Docs, plus iPhone, iPad and Android apps.
Can Grammarly detect AI-written text?
Yes. It offers an AI Detector agent, and Pro includes plagiarism and AI-text detection.
User reviews
No reviews yet. Used Grammarly? Be the first.
Sign in to rate this tool and share how you use it.
Grammarly in our articles
Guide
Brand Voice at Scale: How Marketing Teams Are Actually Using AI to Stay Consistent in 2026
Aug 28, 2026 · 12 min read
Guide
The AI Privacy Problem: What Your AI Tools Actually Know About You (And How to Take Back Control)
May 8, 2026 · 12 min read
Grammarly
Freemium
Tools similar to Grammarly
H
Hemingway Editor
Readability editor that flags wordy, unclear writing and offers AI fixes
L
LanguageTool
Grammar, spelling and style checker for 30+ languages, with AI rephrasing
P
ProWritingAid
Grammar checking, line editing and story critique for fiction writers