Velorn

Velorn is an open source AI video editing application built for ComfyUI creators. It describes itself as a video workstation that brings generation, direction, timeline editing, upscaling, effects and export into one project, rather than a launcher for a single model. The app works with any ComfyUI workflow and supports three ways of running. Local mode points at an existing ComfyUI install, scans workflows, installs curated dependencies and keeps generation on the user's own GPU. Cloud mode uses partner API workflows for models such as Kling, Vidu, Grok, Nano Banana, Seedream and Topaz, which helps on low VRAM machines or for specialty tasks. Hybrid mode mixes the two in one timeline, for example generating references locally, producing hero shots in the cloud and upscaling selected clips. Local model families named include LTX, WAN and Qwen. Director Mode and MCP automation support more guided and scripted production. Guided starter kits help new users reach a working setup around goals such as low VRAM local video, best local quality, cloud quality and music videos, while experienced users can bring their own ComfyUI install, custom nodes and models. Builds for Windows, macOS and Linux are available as free downloads, and the source is on GitHub. The site does not publish prices for the premium cloud workflows.