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Readable IO

Readable IO is an AI-powered Writing Assistant tool — AI readability analysis and content scoring. Best for: Content Writing & Copywriting. Pricing: Freemium (GateOnAI Score: 58/100).

AI readability analysis and content scoring

FreemiumVerifiedContent WritingCopywritingSEO WritingTechnical WritingProofreadingGrammar CheckerParaphrasingSummarizationTranslation

Readable is an online toolkit that helps writers improve the clarity of their content. It analyses text from Word documents, PDFs, ODF, Markdown, spreadsheets, URLs, emails, or entire websites and even accepts input via an API. The tool provides readability scores from every major algorithm—including Flesch‑Kincaid, SMOG, Gunning‑Fox—and its own unique algorithm, alongside spelling, grammar, style, cliché and profanity checks. As you edit, scores update in real time, and the interface highlights the sections that need the most attention. Readable’s results are backed by over 10,000 automated tests and hand‑calculated scores, and the service offers in‑app and email support plus a knowledge base. Data security and privacy are emphasized, with options for controlling data retention. Over 3,000 authors, marketers, educators and other professionals use Readable to produce clearer, more accessible content.

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Tools that Readable IO genuinely connects with, based on real input/output compatibility data (not just shared category):

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