# Ctrl-h Text Macro

Ctrl-h is a browser-based text macro and AI chat tool.

## What it does

- Lets users build custom word-replacement rules (find-and-replace macros) applied to pasted text
- Supports whole-word and case-sensitive matching modes
- Can replace words with GIF/image URLs, rendering them inline
- Splits long texts into paginated chunks for easier reading
- Provides a multi-thread AI chat interface using various LLM providers (GPT, Claude, Gemini, Mistral, and more) via OpenRouter
- Supports kanji/furigana annotation for Japanese learning
- Allows importing and exporting replacement lists as plain text or JSON

## Public URLs

- https://ctrl-h.org/ — main application (single-page tool, no sub-routes)
