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SEO & Readability Analyzer

Paste content to get counts, Flesch reading-ease and grade level, estimated reading time, and top keyword density. Handles English and Korean.

Use it in your app: TextLens API — POST https://textlens-api.cchkjjdobby.workers.dev/analyze · Docs · Pricing · Get a key
How it works
Paste content to get counts, Flesch reading-ease and grade level, estimated reading time, and top keyword density. Handles English and Korean. Everything runs on a fast hosted API with no external cost, so it stays free here and cheap to integrate.
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Get an API key & pricing: cchkjjdobby@gmail.com · Privacy