What does each rewrite mode actually do?

Full rewrite rebuilds the whole body for LLM consumption (paragraphs <100 words, direct answer in the opener, semantic H2/H3 chunks), so it changes your wording. Structure-only keeps your exact wording but splits long paragraphs and adds headings. Both modes rewrite the body; the difference is whether your wording is preserved. The Q&A pairs, FAQPage JSON-LD, summary, and defined terms are generated in both modes.

What's the input limit?

200 characters minimum, 15,000 characters maximum on pasted content. URL-fetched content is also capped at 15,000 chars (we truncate after stripping HTML). If your article is longer, paste it in two passes; most blog posts fit comfortably under the cap.

Which LLM are you using?

OpenAI gpt-4o-mini with function-calling. Same model the rest of this repo's AI tools use (ai-outline-generator, content-optimization-tool, etc.). It's cheap, fast, and reliable for structured-output tasks. We don't currently expose other LLMs: the gpt-4o-mini output quality is high enough that adding more models isn't worth the integration cost.

How is this different from the AI Outline Generator?

AI Outline Generator takes a TOPIC and generates an outline from scratch. This tool takes YOUR EXISTING CONTENT and rewrites it: different starting point, different output. Use the Outline Generator when you're starting a new piece; use the Rewriter when you have an existing article that needs LLM optimization.

Can I edit the Q&A pairs before pasting them?

Yes, that's encouraged. The Q&A pairs are extracted by the LLM and are generally on-topic, but you'll often want to tweak phrasing for your brand voice or correct subtle inaccuracies. The copy buttons on each section let you grab exactly what you need; the FAQPage JSON-LD is rebuilt from whatever's in the Q&A pairs, so edits flow through.

Why does the URL fetch sometimes fail?

Three common reasons: (1) the URL requires auth (we don't follow login walls), (2) the page returns mostly JavaScript with little server-rendered HTML (we don't run a browser), (3) the page is on a private IP or non-public domain. In all three cases, just paste the content directly; the rewrite quality is identical.

Does it cost anything?

No. Free, no signup. Per-IP rate limit (3/hour, 8/day) and a global daily budget on OpenAI API costs. Each request is one gpt-4o-mini call (~$0.002-0.004); the daily cap keeps the free tier sustainable.

Free LLM Content Rewriter: Rewrite for AI Search

Free LLM Content Rewriter

Paste your article OR enter a URL, pick a rewrite mode (full rewrite or structure-only), and get a real gpt-4o-mini rewrite. The output includes the rewritten body (paragraphs <100 words, direct answer in the opener, semantic chunks), 5-10 Q&A pairs an LLM would extract from your content, a ready-to-paste FAQPage JSON-LD schema, a 5-7 bullet summary, and 3-6 defined terms with one-sentence definitions.

How the LLM Content Rewriter Works

LLMs (ChatGPT, Perplexity, Claude, Gemini) extract answers from web content as semantic chunks. Long paragraphs get paraphrased away. Buried direct answers get missed. Unstructured prose with no headings, no defined terms, and no Q&A markup is essentially invisible to AI engines even if the content is excellent.

The rewriter runs your content through OpenAI's gpt-4o-mini (with function-calling for structured JSON output) and returns:

Rewritten body: paragraphs split to <100 words, an opening direct answer (40-120 words), H2/H3 markdown headings, semantic chunks that work as standalone answers.
5-10 Q&A pairs: natural search-query phrasings extracted from your content with complete 1-3 sentence answers.
FAQPage JSON-LD: ready-to-paste structured-data block built from the Q&A pairs. Drop it in your <head> tag.
5-7 bullet summary: scaffolding LLMs see before the prose. Surfaces the takeaways.
3-6 defined terms: named concepts with one-sentence definitions. LLMs preferentially cite pages with explicit definitions.

Pick a rewrite mode based on how much transformation you want. Both modes rewrite the body, the difference is how aggressively:

Full rewrite: rewrite the whole body from scratch. Strongest transformation. Use when content was written for humans only.
Structure only: keep your exact wording, just split long paragraphs and add headings. Use when the prose is good but the layout isn't.

The Q&A pairs, FAQPage JSON-LD, bullet summary, and defined terms are generated on every run regardless of mode; they're supporting outputs alongside the rewritten body.

Inputs: paste up to 15,000 characters OR paste a URL (we fetch the page server-side, strip HTML, and send the body text to the LLM). Either way, the result includes copy-buttons on every section + download as a file.

For Content Marketers

Convert long-form blog posts into LLM-friendly format in one click
Auto-generate FAQ schema for every article without writing JSON-LD by hand

For SEO Consultants

Run on client articles to deliver concrete optimization output (not just a score)
Use the Q&A pairs as content-brief outlines for the next article in the cluster

Why Use the LLM Content Rewriter

Real LLM rewrite, not heuristic chunking: gpt-4o-mini with function-calling produces structured JSON output. Every field is populated, every Q&A is on-topic.
Two rewrite modes: full from-scratch rewrite, or structure-only (keep your wording, fix the layout). Both rewrite the body.
Paste OR URL: works with raw content or with a public URL. We fetch the page server-side and strip the HTML for you.
Copy + download on every section: Q&A pairs, JSON-LD schema, rewritten body, summary all get their own copy button so you can take exactly what you need.
Free, no signup: Per-IP rate limit (3/hour, 8/day) and a global daily LLM cost budget.

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Free LLM Content Rewriter

How the LLM Content Rewriter Works

The rewriter runs your content through OpenAI's gpt-4o-mini (with function-calling for structured JSON output) and returns:

Rewritten body: paragraphs split to <100 words, an opening direct answer (40-120 words), H2/H3 markdown headings, semantic chunks that work as standalone answers.
5-10 Q&A pairs: natural search-query phrasings extracted from your content with complete 1-3 sentence answers.
FAQPage JSON-LD: ready-to-paste structured-data block built from the Q&A pairs. Drop it in your <head> tag.
5-7 bullet summary: scaffolding LLMs see before the prose. Surfaces the takeaways.
3-6 defined terms: named concepts with one-sentence definitions. LLMs preferentially cite pages with explicit definitions.

Pick a rewrite mode based on how much transformation you want. Both modes rewrite the body, the difference is how aggressively:

Full rewrite: rewrite the whole body from scratch. Strongest transformation. Use when content was written for humans only.
Structure only: keep your exact wording, just split long paragraphs and add headings. Use when the prose is good but the layout isn't.

The Q&A pairs, FAQPage JSON-LD, bullet summary, and defined terms are generated on every run regardless of mode; they're supporting outputs alongside the rewritten body.

For Content Marketers

Convert long-form blog posts into LLM-friendly format in one click
Auto-generate FAQ schema for every article without writing JSON-LD by hand

For SEO Consultants

Run on client articles to deliver concrete optimization output (not just a score)
Use the Q&A pairs as content-brief outlines for the next article in the cluster

Why Use the LLM Content Rewriter

Real LLM rewrite, not heuristic chunking: gpt-4o-mini with function-calling produces structured JSON output. Every field is populated, every Q&A is on-topic.
Two rewrite modes: full from-scratch rewrite, or structure-only (keep your wording, fix the layout). Both rewrite the body.
Paste OR URL: works with raw content or with a public URL. We fetch the page server-side and strip the HTML for you.
Copy + download on every section: Q&A pairs, JSON-LD schema, rewritten body, summary all get their own copy button so you can take exactly what you need.
Free, no signup: Per-IP rate limit (3/hour, 8/day) and a global daily LLM cost budget.

Ready to Scale Your SEO Content?

SEOmatic is the content infrastructure agencies and in-house SEO teams use to generate, optimize, and publish hundreds of SEO pages that rank in search and AI.

Get Started Free

Explore SEOmatic

14-day free trial. No credit card required.

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