vokoscreenNG

vokoscreenNG is a mature, open source screencast creator primarily targeting Linux users, with Windows support as well. It records your full screen, a specific region, or an individual window, and supports capturing audio from multiple sources simultaneously.

A built-in camera overlay lets you add a webcam feed to your recordings. Productivity extras like a magnifying glass, countdown timer, Showclick (visualises mouse clicks), and a halo effect make it well-suited for technical tutorials and software demonstrations.

As a free alternative to Camtasia on Linux, vokoscreenNG fills an important gap — Camtasia has no native Linux support, making vokoscreenNG the go-to professional screen recorder for Linux power users.