Editly is a Free Video Editing Framework for Node.js

Editly is a Free Video Editing Framework for Node.js
Photo by Rodion Kutsaiev / Unsplash

Editly is a tool and framework for declarative NLE (non-linear video editing) using Node.js and ffmpeg. Editly allows you to easily and programmatically create a video from a set of clips, images, audio and titles, with smooth transitions and music overlaid.

Editly has a simple CLI for quickly assembling a video from a set of clips or images, or you can use its more flexible JavaScript API.

Inspired by ffmpeg-concat, editly is much faster and doesn't require much storage because it uses streaming editing. Editly aims to be very extensible and feature rich with a pluggable interface for adding new dynamic content.


  • Create a slideshow from a set of pictures with text overlay
  • Create a fast-paced trailer or promo video
  • Create a tutorial video with help text
  • Create news stories
  • Create an animated GIF
  • Resize video to any size or framerate and with automatic letterboxing/cropping (e.g. if you need to upload a video somewhere but the site complains Video must be 1337x1000 30fps)
  • Create a podcast with multiple mixed tracks


  • Edit videos with code! 🤓
  • Declarative API with fun defaults
  • Create colorful videos with random colors generated from aesthetically pleasing palettes and random effects
  • Supports any input size, e.g. 4K video and DSLR photos
  • Can output to any dimensions and aspect ratio, e.g. Instagram post (1:1), Instagram story (9:16), YouTube (16:9), or any other dimensions you like.
  • Content is scaled and letterboxed automatically, even if the input aspect ratio is not the same and the framerate will be converted.
  • Speed up / slow down videos automatically to match the cutFrom/cutTo segment length with each clip's duration
  • Overlay text and subtitles on videos, images or backgrounds
  • Accepts custom HTML5 Canvas / Fabric.js JavaScript code for custom screens or dynamic overlays
  • Render custom GL shaders (for example from shadertoy)
  • Can output GIF
  • Overlay transparent images or even videos with alpha channel
  • Show different sub-clips for parts of a clips duration (B-roll)
  • Picture-in-picture
  • Vignette
  • Preserve/mix multiple audio sources
  • Automatic audio crossfading
  • Automatic audio ducking and normalization



MIT License

Resources & Downloads

  • Source-code and Library
GitHub - mifi/editly: Slick, declarative command line video editing & API
Slick, declarative command line video editing & API - mifi/editly