Open Source TypeScript Video Editing Software

OpenCut is an open-source, cross-platform video editor that focuses on fast cutting, trimming, and simple storytelling rather than heavyweight VFX. Its UI is designed to feel familiar on day one: a timeline, preview, media bin, and a minimal set of tools that cover the majority of social and short-form editing tasks. Under the hood it emphasizes responsive playback and snappy scrubbing so editors can make decisions quickly without proxy gymnastics. Common conveniences—snapping, ripple edits, keyboard shortcuts, and export presets—help you get from footage to shareable output with minimal setup. The project aims to be approachable for newcomers while still serving power users who want a dependable cutter for everyday content. With an open ecosystem, it invites plugins and community presets to extend capabilities without bloating the core.

Free FPS is an open‑source desktop app and scripts to change a video file frame rate (FPS) using FFmpeg. Unlike video editors, it does not add effects or alter content - it only adjusts playback speed and, if needed, re-encodes audio as well. Useful if you work with multiple videos shot at different frame rates that cannot be combined or edited without interpolation or frame loss. Also doubles as a fast video compressor: keep the original FPS and raise compression (e.g., higher CRF or lower bitrate) to reduce file size. What it does: Changes video FPS via FFmpeg. Keeps or re‑encodes audio if requested. No effects, no content edits. Writes results to a separate output folder by default. Also doubles as a fast video compressor: keep the original FPS and raise compression (e.g., higher CRF or lower bitrate) to reduce file size. Important: The program is intended for users who understand what FPS conversion does. Changing the frame rate affects the speed and duration of the video

Image Upscaling in Javascript. Increase image resolution up to 4x using Tensorflow.js. Open source, browser/Node compatibility, and completely free to use under the MIT license. Scale images up to 4x their original size, all in Javascript. UpscalerJS ships with pre-trained models in the box covering a wide variety of use cases. Or bring your own! Browser, Node (CPU and GPU-accelerated), and Service Worker environments all supported. Supports inputs in a wide variety of formats - URL, HTMLImageElement, and more, and by default exports a base64 upscaled string. Pick your Javascript flavor! UpscalerJS ships with ESM and UMD (browser) and ESM and CJS (Node). Close to 100% test coverage, Typescript support, examples covering a wide variety of use cases, and thick documentation.

Free, open-source Opus Clip alternative for Windows. Turn long videos into platform-ready clips with local or cloud transcription, smart reframing, styled captions, and direct publishing. CLIPPING Auto: create 15s, 30s, 45s, 1m, or custom clips from the transcript Manual: click two words to set in/out points MCP: let an agent choose clips by word index with live preview Open the full GrepCut Studio editor from Clipper OVERLAYS Animated caption presets with live preview Adjust position, size, and words per line Add a logo or handle; control placement and opacity TRANSCRIPTION Run Parakeet or Whisper v3 Turbo locally, with optional MDX vocal isolation Or use your Groq/OpenRouter API key AUTOREFRAME Face and subject tracking for 9:16, 4:5, 1:1, and 16:9 Split view when two people won’t fit in one crop RENDER QUEUE Choose formats per clip Export at source quality, 1080p, or 720p PUBLISH Publish directly to TikTok and YouTube