jakiestfu/Behave.js

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1730 stars · 110 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Behave.js is a lightweight, dependency-free JavaScript library that adds IDE-style editing behaviors to plain HTML textareas, such as tab handling, auto-indentation, and paired-character auto-completion. It works across browsers including older versions of IE, Firefox, Safari, Chrome, and Opera.

Use cases

• add tab and auto-indent support to a plain textarea
• auto-close brackets and quotes in a browser-based code input
• make a textarea feel like a lightweight code editor without a full editor library
• support multi-line indent and unindent in a text area
• delete paired characters together on backspace in a code textarea

When to choose

• you want IDE-like typing behaviors in a plain textarea with zero dependencies
• you need a tiny library that works in legacy browsers like IE6/IE7
• a full editor like CodeMirror or Ace is overkill for your use case

When to avoid

• you need syntax highlighting, line numbers, or a full code editor experience
• you need a library that is actively maintained with modern browser guarantees
• you need mobile or accessibility-focused editing features

Facets

library · maturity abandoned

editor developer-tools developer-tools text-editors web-development frontend browser cross-platform textarea ide-behaviors code-editor vanilla-javascript no-dependencies

Member repositories

For agents

markdown · JSON · MCP: product_card(name="jakiestfu/Behave.js")