ai-video-editor

Name: ai-video-editor
Author: MartinDelophy

Warning

Local-first browser AI video editor with WebGPU AI music, AI repair, voiceovers, captions, talking avatars, and deterministic export.

471stars

45forks

JavaScript

Installation

# Add to your Claude Code skills
git clone https://github.com/MartinDelophy/ai-video-editor

Getting Started

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Security ReportWarning

Last scanned: 7/22/2026

{
  "issues": [
    {
      "type": "npm-audit",
      "message": "@huggingface/transformers: Vulnerability found",
      "severity": "high"
    },
    {
      "type": "npm-audit",
      "message": "kokoro-js: Vulnerability found",
      "severity": "high"
    },
    {
      "type": "npm-audit",
      "message": "sharp: sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591",
      "severity": "high"
    },
    {
      "type": "npm-audit",
      "message": "vite: launch-editor: NTLMv2 hash disclosure via UNC path handling on Windows",
      "severity": "high"
    }
  ],
  "status": "WARNING",
  "scannedAt": "2026-07-22T06:27:45.037Z",
  "npmAuditRan": true,
  "pipAuditRan": true,
  "promptInjectionRan": true
}

README.md

Frequently Asked Questions

What is ai-video-editor?

ai-video-editor is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by MartinDelophy. Local-first browser AI video editor with WebGPU AI music, AI repair, voiceovers, captions, talking avatars, and deterministic export. It has 471 GitHub stars.

Is ai-video-editor safe to use?

ai-video-editor returned warnings in SkillsLLM's automated security scan. It has no critical vulnerabilities, but review the flagged issues in the Security Report section before adding it to your workflow.

How do I install ai-video-editor?

Clone the repository with "git clone https://github.com/MartinDelophy/ai-video-editor" and add it to your Claude Code skills directory (see the Installation section above).

What programming language is ai-video-editor written in?

ai-video-editor is primarily written in JavaScript. It is open-source under MartinDelophy on GitHub, so you can review or fork the full source.

Are there alternatives to ai-video-editor?

Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh ai-video-editor against similar tools.

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Timeline Studio — Browser AI Video Editor

Timeline Studio is launching on Product Hunt Aug 25 (PDT). Follow our page to share technical feedback on launch day!

Responsible use of deep synthesis

This tool uses deep-synthesis technology and is intended solely for technical research and learning.

Users must ensure that they:

use only facial images or videos of themselves or people who have provided lawful authorization;
do not create or distribute any illegal, infringing, false, or misleading content;
do not present generated content as authentic footage or impersonate another person without their consent.

Users are solely responsible for any legal liability arising from violations of these requirements.

Project updates

August 7, 2026 — v0.9.2 cross-platform Agent Skill: synchronized the complete edit-timeline-studio package across GitHub Releases, GitHub Skill installation, skills.sh, Codex, Claude Code, GitHub Copilot, and Gemini CLI. This release adds reference-video reconstruction, highlight and tension shaping, promotion narrative planning, provider-neutral footage sourcing, local model routing, explicit host dependency setup, Chinese/English voiceover preparation, and audio timing and loudness validation.
August 5, 2026 — v0.9.1 Agent Skill: published the professional auto-editing workflow through skills.sh and GitHub Skill installation. The Skill now classifies raw footage, product/tutorial videos, multi-shot highlights, multi-speaker conversations, and website walkthroughs; plans from multimodal image, speech, OCR, and motion evidence; guides stabilization, tracking, and deliberate enhancement; preserves sentence-level portable voiceover clips; and requires both a verified editable .timeline project and rendered video for completed edits.
July 31, 2026 — Face swap: replace the identity in a selected visual clip with browser-local face detection, tracking, and preview.
July 28, 2026 — v0.8.0: contributor onboarding and release documentation were refreshed.
See the public Roadmap for planned work, Releases for shipped changes, and Issues for focused tasks and bugs.

What can it produce?

Explore reproducible before/after examples and editing recipes:

→ AI Video Editing Skills Handbook

Timeline Studio is a local-first AI video editor that runs in the browser. It combines a CapCut-style multi-track timeline with WebGPU AI music and repair, multilingual voiceovers, automatic captions, talking-avatar generation, and deterministic offline export.

Open the editor · Watch on YouTube · Hugging Face Space

Video demo

Auto Edit

Visual analysis, keyframes, captions, and export.

https://github.com/user-attachments/assets/e8327caa-429e-40ff-a7fe-a59e6cf7a464

AI Repair

Timed watermark removal with before/after review.

https://github.com/user-attachments/assets/aea9f5b4-c720-4b0c-9067-5ec124eef982

AI Voiceover

https://github.com/user-attachments/assets/304a744e-d620-4380-9c17-19af3726f5a4

Timeline Studio editor

AI capabilities

Multilingual voiceover: Chinese Piper/VITS ONNX voices, English Kokoro 82M, and browser Piper voices for German, Spanish, French, Italian, and Brazilian Portuguese.
Local AI music: Stable Audio 3 Small Q4 ONNX runs through WebGPU with translated free-form prompts, 30/60/90/120-second choices, waveform-aware long-track looping, persistent model caching, and automatic insertion into My Assets.
Automatic captions: Whisper small q8 ONNX with waveform-aware timing and conservative Chinese recognition cleanup.
Smart framing: YOLOS tiny subject detection and MODNet portrait matting for smart crop, caption avoidance, and background removal across images and complete videos.
AI Repair: browser-local MI-GAN watermark/object removal with multiple timed repair regions, plus NanoVSR 644K WebGPU 4× restoration for images and videos with synchronized before/after comparison.
AI vocal separation: isolate vocals and place the instrumental stem on the music track without leaving the browser workflow.
Digital human: JoyVASA audio-to-motion and LivePortrait neural rendering with WebGPU, 256px preview and 512px quality paths.
Local-first inference: large models are lazy-loaded, revision-pinned, and cached by the service worker; supported workflows run without uploading project media to an editing backend.

Resilient model delivery

Browser AI models are mirrored on both Hugging Face and ModelScope. Timeline Studio uses ModelScope first for Chinese interfaces and domestic sessions, uses Hugging Face first elsewhere, remembers the first working source for the current runtime, and automatically falls back to the other source when needed. Cache identities are shared across both providers, so switching routes does not download the same revision twice.

Stable Audio: Hugging Face · ModelScope
Voice models: Hugging Face · ModelScope (mixed upstream licenses; see the repository model card)
Timeline Studio ONNX models: Hugging Face · ModelScope
Depth Anything V2 Small Q4F16: Hugging Face · ModelScope (Apache-2.0)
Vocal remover: Hugging Face · ModelScope

Editing and export

Contiguous main Visuals track plus timed picture-in-picture overlays.
Direct canvas selection, movement, proportional resize, rotation, masks, filters, effects, animation, speed, and explicit keyframes.
Captions, stickers, voiceover, separated source audio, and music on independent timed tracks.
CapCut-style snapping, alignment guides, clip menus, split/duplicate/delete, timeline zoom, undo/redo, and portable .timeline projects.
Native media playback for a responsive preview; export uses a separate deterministic offline rendering path.
WebCodecs MP4/WebM composition with shared preview/export geometry, audio mixing, captions, overlays, effects, and MediaRecorder fallback.
Installable PWA with a cached app shell and multilingual UI.

Agent Skill

The repository includes the AI Video Editing Skill for Codex, Claude Code, Copilot and Gemini CLI, backed by edit-timeline-studio for planning, executing, and verifying editable video timelines.

It helps an agent: