GoKawiilKalmuri offers free portable screen capture, recording and OCR for Windows
Kalmuri is a free, portable Windows utility that combines screenshots, screen recording, and OCR text extraction in one app. It supports full-screen or area capture in formats like PNG, JPG, BMP and GIF, plus MP4 video recording via an added FFmpeg component, along with color picking, hotkeys, floating image previews, and a built-in browser for capturing full webpages. It requires no installation, so it can run from a USB drive.