The AI Tool ShelfBest Free AI Writers & Writing Assistants
Want an AI writer that helps you draft, rewrite or polish text without paying upfront? These AI writing assistants all offer a free plan or free trial, from grammar and tone fixes to full SEO articles.
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Quick comparison
| Tool | Free option | Best for | |
|---|---|---|---|
| Grammarly | Free plan available, paid plans for advanced suggestions | anyone who wants cleaner, clearer English writing | Try free ↗ |
| Writesonic | Free trial available, paid plans for more content | small businesses and freelancers mixing writing and SEO | Try free ↗ |
| Koala AI | Free trial words available, paid plans by monthly word count | bloggers and niche-site owners writing SEO articles | Try free ↗ |
| Jasper | Free trial available, paid plans for individuals and teams | marketing teams that need on-brand content at volume | Try free ↗ |
Free plans and limits change often. Check each tool's official pricing page for the current details.
1. Grammarly
Grammar, clarity and tone checks wherever you write.
Grammarly checks your spelling, grammar, clarity and tone as you type, in your browser, email, documents and phones. Its AI features can also rewrite sentences, shorten text or draft replies. It is useful for anyone who writes in English, especially non-native speakers.
Free option: Free plan available, paid plans for advanced suggestions.
Best for: anyone who wants cleaner, clearer English writing.
- Works almost everywhere you type
- Very easy to use
- Useful free version
2. Writesonic
AI writing and SEO content in one dashboard.
Writesonic combines an AI writer with SEO tools. It can draft blog posts, landing pages and ads, and helps you plan content around keywords. It is a flexible option for small businesses and freelancers.
Free option: Free trial available, paid plans for more content.
Best for: small businesses and freelancers mixing writing and SEO.
- Many content types in one place
- Helpful SEO features
- Good for quick drafts
3. Koala AI
SEO-focused long-form articles in a few clicks.
Koala AI (KoalaWriter) is built for bloggers and affiliate sites. Enter a keyword and it researches the topic and writes a structured long-form article with headings, ready to edit. It can also help create product roundup posts.
Free option: Free trial words available, paid plans by monthly word count.
Best for: bloggers and niche-site owners writing SEO articles.
- Saves hours on first drafts
- Made with SEO in mind
- Simple to use
4. Jasper
AI writing built for marketing teams.
Jasper is an AI writing platform aimed at marketing. It can learn your brand voice and then produce blog posts, ads, emails and social posts that stay on-brand. Teams like its templates, campaigns feature and collaboration tools.
Free option: Free trial available, paid plans for individuals and teams.
Best for: marketing teams that need on-brand content at volume.
- Strong for marketing copy
- Keeps a consistent brand voice
- Polished team features
Frequently asked questions
What is the best free AI writing assistant?
For everyday writing, Grammarly's free version is the easiest place to start because it works wherever you type. For blog posts and SEO articles, try the free trials of Writesonic or Koala AI.
Can AI write a full blog post for free?
Tools like Koala AI and Writesonic can draft long articles during their free trial, but you should always edit and fact-check AI drafts before publishing.
Is AI-written content bad for SEO?
Search engines focus on whether content is helpful and accurate. AI drafts that are reviewed, corrected and improved by a person can perform well; unedited, low-value content usually does not.