SmaRTL — automatic RTL/LTR by on-device AI

About

Not yet another RTL toggle. SmaRTL uses on-device AI to detect each paragraph's
language and set its text direction — RTL or LTR — automatically, in real time as
text appears. No buttons to flip, no whole-page guessing.

• Per-paragraph, dynamic: mixed Hebrew/Arabic + English reads correctly, line by
  line — even as a chat streams in.
• On-device AI: detection runs locally using Chrome's built-in AI, with a fast
  heuristic fallback. No network requests, no data collection, no account.
• Automatic on Claude.ai; on ANY site on demand (one click) or via an allowlist
  (auto-run on sites you choose).
• Hebrew, Arabic, and ~30 other right-to-left scripts.
• Text only, never layout: it sets the text-direction attribute and leaves the
  site's structure, menus, and design untouched.
• Bonus on Claude.ai: an optional Markdown formatting toolbar for the composer.

Unofficial. Not affiliated with, endorsed by, or sponsored by Anthropic.
"Claude" is a trademark of Anthropic, PBC, used only to describe compatibility.