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Physix Frontier · News Briefing Card (Hacker News · Oct 24, 2026)

Free Unlimited AI Text Detector Runs Locally in Browser

KEY FACTS

  • The tool was launched on Hacker News and is free to use without limits.
  • After users paste text, the tool gives an overall AI-generated percentage and a confidence level.
  • The tool scores each sentence and highlights passages suspected of being AI-generated.
  • Analysis runs entirely inside the browser, and the text is never uploaded or stored.
  • Text must be at least 50 words, and longer text produces more reliable results.

KEY DATA

50 wordsMinimum text requirement

PHYSIX OBSERVATION

Running locally without transmitting data hits users' privacy concerns squarely and sidesteps API costs. But detection accuracy remains a persistent weakness, and the developers themselves admit it is imperfect. Such tools are better suited as an auxiliary reference; if used for academic review or content judgment, the risk of false positives is considerable.

Source: Hacker News report