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Professional video studio for macOS

Record. Edit.Direct with AI.

KnoxStudio replaces the recorder, editor, writers' room, and AI production crew with one native Mac app — from blank canvas to finished video without leaving your desk.

macOS 13+ · Apple Silicon & Intel · English & 简体中文

KnoxStudio — Untitled Project
REC READY

Start with a recording or media file

Record Add Media
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ScreenCaptureKitDirector ModeVoice control

Made for makers

Studio-quality results, no studio required.

Whether you teach, sell, or tell stories — KnoxStudio takes you from a blank canvas to a finished video without a video team.

01

Educators & course creators

Record lessons, add callouts and step numbers, export crisp tutorials.

02

Product & marketing teams

Ship demos, walkthroughs, and social clips quickly and consistently.

03

Content creators & storytellers

Write a screenplay, let AI direct it into shots, assemble on a real timeline.

04

Founders & professionals

Explain features, pitch ideas, and share knowledge without a video team.

01

Educators & course creators

Record lessons, add callouts and step numbers, export crisp tutorials.

02

Product & marketing teams

Ship demos, walkthroughs, and social clips quickly and consistently.

03

Content creators & storytellers

Write a screenplay, let AI direct it into shots, assemble on a real timeline.

04

Founders & professionals

Explain features, pitch ideas, and share knowledge without a video team.

Course lessonsProduct demosSocial clipsAI short filmsTutorialsPitch videosWalkthroughsExplainersStoryboardsVoiceoversCourse lessonsProduct demosSocial clipsAI short filmsTutorialsPitch videosWalkthroughsExplainersStoryboardsVoiceovers

The KnoxStudio pipeline

One project. Four moves.

Stop juggling five apps to make one video. Recording, editing, audio, AI generation, and export live on a single timeline — your media stays on your Mac.

01Stage

Capture

Native macOS recording

Record any display or window with ScreenCaptureKit. Microphone, system audio, and webcam each land on their own timeline tracks — trim, mute, or mix independently.

  • Display & window capture
  • Separate mic & system audio tracks
  • Cursor, click rings & spotlight effects
  • Recording recovery if interrupted
02Stage

Edit

A real NLE timeline

Multi-track non-linear editing with the depth pros expect and the clarity beginners need. Everything is keyboard-driven with a full in-app shortcut guide.

  • Trim, split, blade & ripple edits
  • Transitions, keyframes & speed control
  • Annotations, callouts & step badges
  • Waveforms, fades & loudness tools
03Stage

Direct

AI that ships footage

Talk to your AI Agent by text or voice. Generate video, images, and audio — or hand it a screenplay and let Director Mode plan shots, generate footage, and place clips.

  • Text & voice AI Agent
  • Director Mode shot breakdown
  • Roles, continuity & variations
  • Timeline editor agent (v1.3+)
04Stage

Export

Publish with confidence

MP4, ProRes, WebM, or GIF — up to 4K. Built-in presets for tutorials, course masters, web previews, and social. Output verified after every export.

  • H.264, H.265 & ProRes
  • Custom presets & bitrates
  • Faithful annotation render
  • Post-export verification

A complete studio

The depth of a pro NLE. The ease of a sketchpad.

Timeline

Edit like a pro. Learn in minutes.

KnoxStudio gives you a true non-linear editing timeline — video, audio, annotations, and a dedicated camera layer — with smart snapping, multi-select, and generous undo.

Edit modes: Normal · Select · SnapGap management in one keystrokePress ? for full shortcut overlay

Mix audio that keeps people listening.

Waveforms on the timeline, per-clip and per-track volume, smooth fades, and pro tools like loudness normalization, ducking, and noise reduction.

Compose every frame before you export.

A multi-layer preview canvas composites video, camera, and annotations exactly as they'll export. Position, scale, rotate, and keyframe movement over time.

KnoxStudio canvas workspace

Write where you will direct.

A focused screenplay workspace with edit, read, and outline modes. Templates for features, shorts, and TV episodes — plus Git support and LLM-assisted writing.

KnoxStudio screenplay editor

Ship in the format your audience needs.

When you're done, export exactly what you need — with presets for common goals and custom settings when you need full control.

MP4 · H.264H.265 / HEVCProResWebMGIFUp to 4K

Not a gimmick — a production crew

An AI that ships real footage.

A built-in AI agent works alongside you as a creative collaborator — by text or voice. Generate video, images, and audio from prompts, guided by character roles and screenplay context, and drop results straight onto your timeline.

AI Agent

Director Mode · active

live

Describe a shot…⌘↵

Agent tools, wired to your timeline

generate_video()

Create video from prompt + role & scene context

generate_image()

Storyboards, stills, and reference frames

place_clip()

Insert generated media at playhead or specified time

replace_clip()

Swap an existing clip with a new generation

extend_clip()

Generate a continuation of existing footage

regenerate_clip()

Re-run generation with same or edited context

WorkflowIdlePromptingGeneratingReviewingPlaced

Director Mode

  • AI director shot breakdown with framing, camera, and per-shot timing
  • Interactive Shot List editor to review prompts before generation
  • Vision model watches previous clip for continuity frames
  • Syllable-accurate duration enforcement with auto-split dialogue

Timeline editor agent

  • Full timeline editor via chat: split, trim, move, delete, retime
  • Vision-grounded edits — agent watches footage before cutting
  • Transcribe speech with timestamps for dialogue-based edits
  • Content analysis: scene-change cuts and silent range detection

Roles & continuity

  • Reference images and custom voice profiles per character
  • Roles persist in ~/.knoxmedia/roles/ with metadata
  • Active roles injected into every generation request
  • Visual and vocal consistency across all AI takes

Native by design

Built natively for macOS. Not a web wrapper.

KnoxStudio is macOS-only by design — enabling deep integration with the APIs that matter for professional capture, playback, and security.

ScreenCaptureKitSharp, smooth screen recording
AVFoundationMedia playback and capture
Security / KeychainAPI keys stored securely
Core AudioSystem audio capture
NotarizationApp Store & Gatekeeper ready

All-in-one

Record, edit, write, generate, and export without switching apps.

Native & fast

Launches quickly and stays smooth on long, heavy timelines.

AI that helps

Real generation and directing pipeline wired into your timeline.

Privacy-respecting

Media on your Mac; API keys in the system Keychain.

Reliable by design

Autosave snapshots, crash recovery, integrity checks.

Ready for everyone

EN & 简体中文, light & dark themes, accessibility built in.

Keyboard-driven

Edit at the speed of thought.

Every action has a key. Press ? anytime for the full in-app shortcut overlay.

Edit at the speed of thought

Playback

  • Play / PauseSpace
  • Step one frame/
  • Toggle loopL

Editing

  • Split at playheadT
  • Blade toolB
  • Add transition⌘T

AI Agent

  • Focus chat input⌘K
  • Generate from input⌘G
  • Toggle voice mode⌘⇧V

Latest release

v1.3.1

  • Separate system audio and microphone on timeline tracks
  • AI timeline editor agent — split, trim, transcribe, caption via chat
  • Director Mode with vision-grounded continuity frames
  • Screenplay Git integration and LLM-assisted writing
  • Redesigned sliders and inspector across the app

From install to export

Up and running in minutes.

  1. 1

    Install KnoxStudio

    Download for macOS 13 or later. Apple Silicon and Intel Universal Binary supported.

    Download for Mac
  2. 2

    First-run setup

    Choose your language (English or 简体中文), theme, and default preferences.

  3. 3

    Pick your starting point

    Record your screen, import media by drag-and-drop, write a screenplay, or describe what you want to the AI Agent.

  4. 4

    Edit on the timeline

    Trim, arrange, annotate, and mix. Press ? anytime for the full keyboard shortcut guide.

  5. 5

    Polish & export

    Keyframe transforms, add transitions, then export to MP4, ProRes, WebM, or GIF.

Pick a starting point

Record a tutorial

01
Record screen + micAdd step annotationsExport crisp MP4

AI short film

02
Write screenplayDirector Mode shot listGenerate & assemble

Product demo

03
Record walkthroughTrim & add calloutsExport web preset

Questions

Good to know.

KnoxStudio is a complete video studio — not just a recorder. You get a professional NLE timeline, AI generation pipeline, screenplay workspace, and export engine in one native Mac app.

Your project files and media stay local. Only AI generation requests you initiate are sent to configured model providers. API keys are stored in the macOS Keychain.

KnoxStudio routes to configured providers via OpenRouter and direct connectors — supporting text-to-video, image-to-video, reference-guided generation, voices, and music depending on your setup.

Yes. KnoxStudio has a complete shortcut system for playback, editing, timeline navigation, and AI Agent commands. Press ? in the app for the full overlay.

MP4 (H.264/H.265), ProRes, WebM, and animated GIF — with presets up to 4K and custom bitrate controls.

Welcome to KnoxStudio.

Your complete video studio is one download away.

Capture it. Shape it. Bring it to life with AI. Then share it with the world.

macOS 13+ · Apple Silicon & Intel · English & 简体中文