Cut something
worth watching

A local-first video studio for Mac. Transcribe, cut, caption and reframe, by hand or with your own agent.

Pre-order · $79 lifetime and with MCPstdioJSON-RPC

Download for Mac · coming soon

Supcut studio: Agent panel, source viewer, Inspector with sequence and voice mastering settings, and a three-clip timeline with V1, V2 and A2 lanes

When every clip is generated, the edit is what stands out.

Supcut is a studio for short video you can trace back to the source.

Transcript panel with a highlight suggestion, editable segment text and word chips beside the viewer and timeline

Edit from the transcript

Word-aligned transcription runs on your Mac with whisper.cpp. Correct the text, keep the original recognition, and cut on a word.

Highlights list: a draft suggestion with context, Review original and Add reviewed moment

Highlights you review

Up to five source windows per search. They are draft suggestions, not engagement predictions, and nothing lands on the timeline until you have seen the original.

Timeline with waveforms, snapping, and V1 picture, V2 B-roll and A2 music lanes

A magnetic storyline with lanes

Split, trim, reorder, undo. B-roll and picture-in-picture on V2–V4, music and effects on A2–A4, waveforms and snapping throughout. Your original files are never edited.

One cut, every channel.

Reframe, caption and master once, then export the whole pack.

A 9:16 crop guide with a bold caption over the source viewer, with framing, motion tracking and audio controls in the Inspector

Vertical framing

Fill or Fit, position and 1–3× zoom per clip, with a live 9:16 guide on the source and optional subject tracking. Safe-zone guides for TikTok, Reels and Shorts.

Inspector: format, aspect, resolution, frame rate, delivery, captions and broadcast voice mastering

Delivery, decided once

16:9, 9:16, 1:1 and 4:5. HD or 4K, 23.976 to 60 fps. H.264, HEVC or ProRes 422 HQ. Voice mastering to −14, −16 or −18 LUFS.

Draft preview of a vertical variant with a burned-in caption

Native captions

Clean, Bold, Kinetic and Minimal styles rendered with Core Text, with an .srt beside every captioned export.

Creator panel listing the exact changes a draft variant would make to the current edit

Draft variants, itemised

Save a client profile, exclude ranges that must never ship, and review each variant as a list of changes before it touches your edit.

Bring your own agent.

An MCP server and an Agent panel work on the same project you do.

Agent panel

One-click silence removal, punch-in cuts, a pacing and safe-zone audit, and a four-aspect channel pack.

# model-agnostic, stdio JSON-RPC 2.0
$ npm run mcp

# what a connected agent can reach
workspace state      word-aligned transcripts
waveform + silence   keyframe stills (bounded)
variant proposals    atomic command batches

# the studio reloads live when an agent commits

External agents over MCP

Connect Claude, Codex, Gemini CLI or any MCP client. Proposals are validated before they apply, and command batches land atomically.

No account. No API key. No cloud. Projects live in a local SQLite workspace that stores references and hashes, not copies of your video.

Hands on the keys.

The shortcuts editors already know.

Play / pause Space

Shuttle J K L

Frame step ← →

Previous / next cut ↑ ↓

Set in / out I O

Split S

Trim to playhead Q W

Remove ⌫

Undo / redo ⌘Z ⇧⌘Z

Screenshots on this page are unretouched captures of Supcut 0.1 running its end-to-end test project.