Free AI Subheading Generator
Turn one title into 8-12 H2/H3 subheadings with logical flow. Pick intent, tone, audience — outline a post in seconds.
Outline a post in 3 steps
From blank title to structured H2/H3 outline in under 10 seconds.
Paste your title
Drop a specific post title. Broad titles produce broad outlines.
Pick intent + tone
Listicle, how-to, guide. 7 tones × 7 audiences.
Generate and structure
Review. Rearrange. Copy all or export to outline.
H2 count vs. featured-snippet win rate
We examined 3,100 queries where Grigora content ranked top-3. The H2 count on winning pages clusters strongly around 6-10.
Source: Grigora featured-snippet study, 3,100 queries, Jan-Mar 2026. Win rate = % of our top-3 ranks that captured snippet.
Platform-specific guides
Drop outlines straight into your CMS or writing app.
WordPress (Gutenberg)
- 1.Copy all subheadings.
- 2.Paste into your draft, then select each and apply "Heading 2" from toolbar.
- 3.Use Yoast SEO outline view to verify hierarchy.
Notion
- 1.Paste subheadings into a new Notion page.
- 2.Apply H2/H3 via /h2 or /h3 commands.
- 3.Use toggle blocks if you want collapsible outline.
Google Docs
- 1.Paste the outline at top of doc.
- 2.Select each H2, apply Heading 2 style via Format menu.
- 3.Use outline panel (View → Outline) to navigate while writing.
Next.js MDX
- 1.Paste outline into your MDX file with ## prefix for H2.
- 2.Each ## becomes an H2 via MDX rendering.
- 3.Use rehype-slug for auto-anchor links.
Webflow CMS
- 1.Use Rich Text field for body.
- 2.Type subheadings in editor, select → H2 or H3.
- 3.Use CMS collection template to auto-apply styles site-wide.
Who uses the subheading generator
Real use cases from real customers.
Bloggers
Outline before writing. Saves 30-45 min per post vs. staring at blank page.
Content strategists
Build a quarter of content briefs in one afternoon. Hand outlines to writers.
SEO teams
Audit competitor outlines, generate stronger alternatives with keyword coverage.
Students
Structure essays and papers before drafting body paragraphs.
Course creators
Turn lesson titles into module outlines with sub-topics.
YouTubers / Podcasters
Generate show notes and timestamp structure from episode titles.
Common outline mistakes & fixes
The 8 most common issues — and the 10-second fix for each.
Output is 5 generic headers
Fix: Your title is too broad. "SEO tips" → "Technical SEO for Next.js sites in 2026". Specificity → specific headers.
Subheadings are all questions
Fix: Switch Intent from "Question-Based" to "Ultimate Guide" or "Auto". Question format is narrow by design.
Missing the H3 sub-sections
Fix: Short titles produce flat H2-only outlines. Use "Ultimate Guide" intent for nested H3s.
Keyword missing from headers
Fix: Put the exact target keyword in your title. The AI extracts from the title text; it won't guess from context.
Headers contradict each other
Fix: Happens when Intent and Audience conflict (e.g., "Controversial" + "Executives"). Pick compatible pairs.
Too many headers (15+)
Fix: Set Intent to "How-To" or "Comparison" — both have natural caps. "Listicle" and "Ultimate Guide" tend to go longer.
Listicle structure inconsistent
Fix: Each H2 should start with a number or parallel verb. If AI breaks pattern, re-run — second pass usually fixes.
Academic voice missing
Fix: Pair Academic tone + Experts audience. Using only one produces casual voice regardless of topic.
Grigora vs. Semrush vs. Surfer
Feature comparison of the three most-used outline tools.
| Feature | Grigora | Semrush | Surfer |
|---|---|---|---|
| Free unlimited outlines | |||
| Intent selector (7 modes) | |||
| Mixed H2 + H3 hierarchy | |||
| 7 audience presets | |||
| No signup required | |||
| SERP-based keyword coverage | |||
| Privacy (no storage) | |||
| API access |
Built for AI search
AI assistants prefer content with clean heading hierarchy. Structured outlines are the foundation of citations.
Schema-rich page
SoftwareApplication, FAQPage, HowTo, Breadcrumb, ItemList embedded.
Hierarchical outlines
H2s for topics, nested H3s for sub-topics. Mirrors how AI indexes content.
Citation-worthy research
H2-count study (n=3,100) gives AI assistants a quotable source.
Beyond one outline — build an SEO site
Grigora is a no-code SEO-first CMS. Outline, write, and publish posts inside one editor. Schema and sitemaps auto-generated.
AI editor
Outline, expand, rephrase inside your posts. 20+ actions.
Auto-SEO
Schema, sitemaps, meta tags auto-managed across every page.
Performance
Core Web Vitals green out of the box.
Related writing tools
Outline, write, and polish a full blog post in under 15 minutes.
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Generate post titles before outlining subheadings.
AI Section Writer
Expand each subheading into a full 300-500 word section.
AI Title Writer
Refine H1 options for your post.
AI Blog Intro Writer
Write the intro after outlining.
AI Blog Conclusion Writer
Close with a CTA that converts.
AI Meta Description Writer
Write SERP-ready meta for the post.
Frequently asked questions
Questions users ask before generating their first outline.
Reviewed by the Grigora editorial team · Last updated May 2026
H2-count data comes from our Jan-Mar 2026 featured-snippet study (n=3,100 queries where Grigora content ranked top-3). Our editorial team uses this tool to outline every pillar post before drafting.
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