butter

Smoothest Pro Video Editing

Your footage. Your voice. Your sounds. Nothing generated.

Butter is in private alpha. Email adrian@montoya.world to request access.

Why it exists

Editing is mostly waiting. Waiting to scrub. Waiting to find the take. Waiting to fix the ums. Butter takes the waiting out.

01 · Voice

Say it. It's cut before you finish the sentence.

  1. Listen
  2. Cut
  3. Tighten
Fillers · 2model
So, um, I think this is a really good idea, and, uh, we should, we should try it. Let me know what you think.
Cut 2 fillers0:00.8 · 0:04.1
Closed 3 pauses−5.1 s
Removed 1 stutter−1.2 s
Kitchen, take 3Tighteryou
13.8 s 13.8seconds
TimelineOriginal · 13.8 s
So,
I think this is a really good idea,
we should try it.
Let me know.
02 · Library

Type what you remember. Butter finds the moment.

  1. Ask
  2. Understood
  3. Found
2,481 clips
Understood as Person: Adrianmodel Laughingmodel Outdoorsmodel Golden hourmodel Only B-rollyou
03 · Craft

Everything an edit needs. Already in the window.

Captions, motion graphics, sound and style are part of the editor, not plug-ins you hunt for. Everything is made from what you shot.

Captions

Twelve caption styles. Word by word.

Pick a style or save your own. Butter keeps captions off faces and on-screen text, and lights the word you're saying.

CleanBold popKaraokeOne wordBoxedTypewriter
we had five million
Kept clear: face
Text behind you

Put the title behind you. Butter does the cut-out.

If a shot's edge flickers, Butter says so and holds off. A bad cut-out looks worse than none.

FIVE
MILLION
Sound

One rule. Eleven sounds placed.

“Whoosh on cuts.” Edit the rule, not each sound. Recut and every sound follows.

Whoosh soft0.4 s
On every cutLevel −12 dByou
Upbeat bed120 BPM
Motion graphics

Real keyframes, not presets you can't touch.

Lower thirds, counters, callouts. Spring, snap or smooth. Anything you build moves with the moment it belongs to.

Adrian MontoyaFounder
Position Y
82%
Scale
100%
Opacity
100%
Bar width
38%
SmoothSpringSnapLinear
Styles

Edit it like that video.

Drop in a reference. Butter reads its pacing, captions and motion, then offers every change as a switch.

Pacing1:58 → 0:52
CaptionsBold, 3 words
Text behind you× 2
Punch-ins× 9
MusicUpbeat
Review

It watches the finished video first.

Before you approve a short, Butter checks it. A problem comes with a button that fixes it.

Captions never cover a face
Text behind you has clean edges
Loudness fits Reels
Ends mid-word at 0:37Fix ending
iPhone

Hold to talk. Edit from the couch.

Make a short from today's footage. Your Mac swaps the originals in for export.

0:21 / 0:58Export
DAY
TWO
the water was freezing
CaptionsBehind meSound
Type or hold to talk
Lisbon recapAdding captions · 9 moments picked
62%
Footage library

Every clip, wherever it lives. Even with the drive unplugged.

Butter catalogues a drive once and remembers what's on it: previews, words, faces, tags, moments. It only asks for the original when you export. Folders never move your files.

3.4 TB catalogued2,481 clips2.1 GB kepton this Mac
This MacWatching 3 folders412
Studio SSDOffline · still searchable1,080
iPhonePhotos, read in place286
iCloud DriveDownloads only what an edit needs530
Google DriveSign in again173
04 · Why Butter

Three things nobody else does at once.

1

Nothing generated.

Your footage, your voice, your sounds. No synthetic video, no cloned voices, no stock. If it's in the cut, you put it there.

FootageyouVoiceyouSoundsyou
2

It shows who decided.

Every value Butter sets carries a tag: model or you. Change one and the tag flips. You always know what's yours and what's a suggestion.

WidemodelWideyouKitchen, take 3model
3

It stays on your Mac.

Speech and vision run on-device. Your footage stays where you saved it. Butter keeps its own map: previews, words, faces and tags.

On-devicespeechOn-devicevision
7ms

To rebuild the timeline after a voice edit, on a 13.8 second clip.

2ms

For Butter to understand a plain command like “tighter”.

6.1s

What a 13.8 second take with ums and stutters comes down to.

0files

Leave your Mac while you build the library. Nothing is uploaded to look at your footage.

05 · Looks

Pitch. Graphite. Butter.

Three grounds, same app. Pick one and the whole page changes with it. Try it.

Shortcut: ⌘⇧L flips light and dark.

06 · Agents

Claude Code can edit it too.

An edit in Butter is a document, not a black box. Agents change it through the same typed tools the app uses. Dry run first, then apply. Same undo.

  • Dry run by default. Nothing changes until it's confirmed.
  • Every cut point comes from your footage, never guessed by a model.
  • Human and agent edits share one history.
FAQ

Short answers.

When can I get it?

Butter is in private build on the Mac. Email adrian@montoya.world to request access.

Does it generate video or voices?

No. Nothing is generated. Butter edits your footage, your voice and your sounds. The only things it makes are cuts, captions and motion graphics from what you gave it.

Where does my footage go?

Nowhere. It stays where you saved it: your Mac, a drive, iCloud, your iPhone. Butter keeps previews, transcripts, faces and tags in its own library, and fetches an original only when you export. Speech and vision run on your Mac.

What if I already use Final Cut or Premiere?

You don't have to pick. Export a Final Cut Pro project and keep editing there. Butter is fastest for the first 90 percent: finding takes, cutting ums, captions, rough cuts.

What do I need to run it?

A Mac with Apple silicon on macOS 26 or later. The iPhone app comes after the Mac app.

Can I trust the cuts?

Cut points come from your footage, word timings and shots, not from a model's guess. Every change is one undo away, and Butter tells you when it isn't sure about a shot.

butter

Smoothest Pro Video Editing.

Mac first. iPhone next. Access is by email while Butter is in alpha.