Guillotine: AI Video Editor

Guillotine is a free, on-device video editor for Android — a real multi-track timeline plus an AI that actually does the editing. Tell it what to cut, and it cuts.

No account. No subscription. No cloud required. Your footage never leaves your device.

✂️ TELL IT WHAT TO CUT
Type a plain-English instruction — “cut the silences,” “keep only the shots with a face,” “delete every frame with my phone in it” — and Guillotine finds the ranges and makes the cuts. Point it at a single frame (“this is my phone”) to track that exact object through the clip. All of this runs on-device with real vision: object, face and scene detection, plus a free silence detector.

🤖 AN AI THAT USES THE REAL TOOLS
A built-in assistant turns your words into real edits — splitting clips, deleting ranges, applying looks — by driving the same editor you use by hand. Bring your own key for a cloud model, or run a fully on-device LLM. Either way the AI only ever works with text: your video is never uploaded.

🎬 A REAL MULTI-TRACK TIMELINE (VEGAS-STYLE)
• Stack video and audio tracks that truly composite — the top track over the layers below
• Crossfade overlapping clips on a track
• Split, group, and drag clips across tracks
• Long-press a clip’s edge to trim its in/out point — or re-extend a trimmed clip back into its source
• Pinch or Ctrl-scroll to zoom; tap anywhere to seek
• On-device thumbnails and audio waveforms on every clip

🎚️ KEYFRAMES, FILTERS & AUDIO
• Animate opacity, scale and volume with keyframes and a cubic-bezier curve editor
• Brightness, contrast, saturation, hue, sepia, blur, grayscale, invert — with presets
• Per-clip volume, left/right pan and loudness normalization
• Crop, scale and rotate any clip — video, image or text — right on the preview

🪄 GENERATIVE & CREATIVE
• Remove an unwanted object and repaint the background so it looks natural
• Background removal: drop a clip’s background so the layer below shows through
• Generate images from a prompt — free with no key, or bring a key for more models
• Text and captions as overlays; auto-transcribe speech into timed caption clips (on-device or cloud)

📼 REAL MP4 EXPORT
Rendering happens on-device with hardware encoding. Removed ranges are physically cut; every effect, transform, caption and audio mix is baked in; and the finished mp4 is saved straight to your gallery.

🔔 KEEPS WORKING IN THE BACKGROUND
Long jobs — analysis, object removal, export — keep running when you leave the app, with a progress notification you can pause, resume or cancel.

⚡ AUTOMATION FOR POWER USERS
While the editor is open, Guillotine runs a small, token-protected automation server (MCP) so an AI tool of your choice can read your timeline and apply edits for you. It carries your project — not your media files — and an optional end-to-end-encrypted relay lets a tool reach it from anywhere. Off by default.

📱 BUILT FOR EVERY SCREEN
One adaptive layout for phones, tablets and Chromebooks, with keyboard shortcuts and mouse + Ctrl-scroll zoom. Installs even without a touchscreen. Android 8.0 and up.

🔒 PRIVATE BY DESIGN
• Editing, playback and all AI analysis run on your device
• Your video is never uploaded for analysis
• Optional cloud-AI keys are stored encrypted on your device and used only for requests you start
• No first-party servers, no account, no tracking

💾 NEVER LOSE WORK
Projects autosave and restore on launch, and save as a portable .gilt file so you can pick up exactly where you left off.

Perfect for trimming dead air out of vlogs and podcasts, pulling clips for social, removing distractions from a shot, captioning talking-head videos, and quick multi-track edits on a phone, tablet or Chromebook — no timeline experience required.

Free and open source. Bring your own AI key, or use the no-key on-device options and keep everything on your device.