Sill open under the notch: a sidebar with Today, Pinned, Secrets, Kinds and Stacks, a search bar, and tiles for a screenshot, links, code, a colour, a note, a PDF and a masked token.

Every task leaves a trail.Sill keeps it.

What you copy, screenshot and download, gathered by task and ready when you come back.

Download Sill Source on GitHub Free and open source · macOS 14 or later · Apple silicon and Intel
How it works

Copy as you work. Hand off the whole task.

The things you copy for one task land in one stack. One click hands the stack to Claude Code, with secrets masked, and nothing changes until you say so.

A Claude Code session started from a stack, reading the PR link, the code, the error and the screenshot text in plan mode.
Also in the notch

Everything else, one hover away.

A log screenshot with a database password, an email and a GitHub token covered, and the list of what was hidden.
A screenshot of an error with a red box around the error line, an arrow pointing at it, and the password, email and token blurred.
The api #482 stack with a PR link, code, an error and a screenshot, and the labelled message Copy for AI put on the clipboard.
A chat window with Sill's numbered paste list open and two items already pasted into the message.

Try it here: copy anything on this page, then press ⌥V.

A PDF being dragged onto the notch, which widens to say Keep in Sill, Drop here.
The notch showing Saved, with the colour #E3735C.The notch showing GitHub token caught, forgotten in 2 min.

Copy this fake token and watch the notch:

Trust

Everything stays on your Mac.

Runs on your MacSearch, text reading and redaction happen on device.
No accountNothing to sign up for. Your history is a file on your disk.
Nothing uploadedNo Sill servers, and no screen recording permission. Nothing leaves your Mac unless you hand off a task.
Get Sill

Free. Open source.

MIT licensed. Read the code, build it yourself, or download the app.

Download SillStar on GitHub

Or install from the terminal: curl -fsSL /install | sh
macOS 14 Sonoma or later. Not notarized yet, so the first time, click Open Anyway in System Settings > Privacy & Security.

Questions

Fair questions.

Which Macs does it work on?

Any Mac on macOS 14 Sonoma or later, Apple silicon or Intel. On a MacBook with a notch it opens when you hover the notch. Macs and displays without one get a small drawn notch at the top of the screen. Control-Option-Space opens it anywhere.

What can it see?

What you copy, what you drop on the notch, and new files in your Downloads and screenshots folders. Nothing else. It doesn't look at other apps, windows or tabs, and never asks to record your screen. Quick paste asks for Accessibility only so it can press Command-V for you.

Does anything leave my Mac?

Only a task you hand off, and it goes through your own Claude Code with secrets masked first. Everything else, search, reading text in screenshots, finding dates and hiding secrets, runs on your Mac. There's no account and no Sill server.

Do I need Claude Code?

Only to hand off a task. It uses your own plan, so Sill adds no cost. Everything else works without it.

What about passwords I copy?

Copies from password managers like 1Password and Bitwarden are skipped. Anything that looks like a key, token or card number is kept masked, kept out of search, and deleted after two minutes.

Is it free?

Yes. Sill is open source under the MIT licence. No account, no licence key, no trial.

How do I install it?

Download the disk image, drag Sill into Applications, then open it once and click Open Anyway in System Settings > Privacy & Security, because it isn't notarized yet. Or run the one-line install above. It appears in your menu bar and opens when you hover the notch or press Control-Option-Space.

Can I build it myself?

Yes. Clone the repo and run ./scripts/bundle.sh. It needs the Swift 6 toolchain and nothing else.

Where do I report a bug?

Open an issue on GitHub. Pull requests are welcome too.