readline

Install command: 
brew install readline

Library for command-line editing

https://tiswww.case.edu/php/chet/readline/rltop.html

License: GPL-3.0-or-later

Development: Pull requests

Formula JSON API: /api/formula/readline.json

Formula code: readline.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon		 golden gate ✅
tahoe ✅
sequoia ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 8.3.6

Keg-only because macOS provides BSD libedit.

Uses from macOS: ncurses

GitHub Packages downloads:

Last 30 days2,954,792
Downloads107,459,348
Analytics install events (30 days)295,928
Downloads / install events (30 days)10.0×

Source: GitHub Packages, fetched 2026-11-02T00:41:12Z. Analytics dates: 2026-10-03 to 2026-11-02. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.

Analytics:

30 days90 days365 days
Installs295,920570,8482,823,812
Installs (--HEAD)818103
Installs on Request3,1026,81044,455
Installs on Request (--HEAD)51476
Build Errors431