Runway Aleph

Runway Aleph is a free AI video editing tool that lets you manipulate videos by typing what you want to change. Upload a clip, describe the edit — like "add a cat on the sofa" or "change the lighting to sunset" — and the AI handles the rest. It can add or remove objects, generate new camera angles, apply style transfers, modify lighting, and even change entire environments. The tool works entirely in the browser with no account required, and outputs MP4 files you can download and use commercially.

What sets Runway Aleph apart is its multi-task approach. Instead of being limited to one type of edit, it handles many transformations from a single model. You can ask it to generate a different camera angle of the same scene, remove a person from the background, or recolor the entire video — all through plain English prompts. The AI preserves lighting, shadows, and perspective so edits look natural. Processing takes between 100 and 300 seconds depending on complexity, and the current output is 360p resolution with clips up to 30 seconds long.

Runway Aleph is built for anyone who needs quick video edits without learning complex software. Content creators can produce social media clips, marketers can make product demos, and educators can create training videos. Small business owners and hobbyists will appreciate that it's completely free with no usage limits. The tool is also useful for generating rough cuts or exploring creative ideas before committing to a full edit in traditional software.