ChatGPT
Best freeChecked 1h agoLink OKFree plan available
Why it wins
Free tier handles keyword brainstorming, H2/H3 outlines, and meta description drafts from a single prompt.
When not to use
No live SERP data; can't verify competitor rankings.
Free AI tools for Write SEO blog brief
Every tool listed here offers a free tier or freemium plan. No credit card required. · 749 reads
Free options
Perplexity
Best freeChecked 1h agoLink OKFree plan available
Why it wins
Paste a topic and get keyword ideas, competitor angles, and structure suggestions with cited sources—useful for quick brief research.
When not to use
Not a dedicated SEO tool; use for research, not SERP scoring.
Writesonic
Best for beginnersChecked 58m agoLink OKFree plan available
Why it wins
SEO brief templates and content outlines built in; minimal setup for structured briefs.
When not to use
Paid; less flexible than Claude or ChatGPT for custom constraints.
SEOWriting.ai
Best overallChecked 1h agoLink OKFree plan available
Why it wins
Bulk SEO articles with publishing hooks for WordPress and similar stacks.
When not to use
When you need a SERP research suite only, not publishing automation.
Comparison
| Tool | Pricing | Verified | Link |
|---|---|---|---|
| ChatGPT | Free plan available | Checked 1h ago | Try → |
| Perplexity | Free plan available | Checked 1h ago | Try → |
| Writesonic | Free plan available | Checked 58m ago | Try → |
| SEOWriting.ai | Free plan available | Checked 1h ago | Try → |