Free · Notarized by Apple · macOS 14+

One clipboard for all your Macs.

Copy on any Mac. Paste on any other. Text, rich text and images, usually in well under a second, encrypted the whole way. There is no account to make, and nothing of yours is kept in any cloud.

Download bLine See what it does

End-to-end encrypted No account, no cloud storage Apple-notarized

Your clipboard is nobody else's business.

Every clip is sealed on the Mac that copied it and opened only on the Macs you have added. Your history is stored encrypted on each Mac and never in any cloud. bLine ships with no relay at all, so on one network nothing you copy leaves your own machines.

Passwords are skippedPassword managers mark what they copy as confidential, and bLine neither records nor sends it. One-time codes stay on the Mac that copied them and are forgotten after five minutes.
No account, no trackingNo sign-up, no analytics, no ads. Your Macs form a private group that only machines you invite can join.
Your Macs do not announce themselvesbLine puts no name on any network it joins. The one exception is while you are deliberately adding a Mac, and it stops the moment you finish.

Set it up once, then forget it is there

1Install on one MacOpen bLine and choose Set Up bLine. That Mac creates a private group: 32 random bytes that never leave it in the clear.

2Add the othersInstall bLine and choose Join my other Macs. On one network the first Mac simply appears in a list. Otherwise paste a four-word invitation, or type an address.

3Copy and pasteThat is the whole ceremony. Press ⌘C on one Mac and ⌘V on another. There is nothing to press in between.

And a deck of everything you have copied

Press ⌃⌘S anywhere and your recent clips slide up from the bottom of the screen. Click one to put it back on your clipboard.

Search inside screenshotsbLine reads the words inside images on your Mac, so searching for what you remember seeing finds the screenshot that has it. The text never leaves the machine that read it.

Shelves you defineA name, a colour and rules: kind is Screenshot and app contains Figma, or website is stripe.com. It becomes a pill above the deck with a number of its own, and it syncs to your other Macs.

Notes, not just copiesWrite a note anywhere with a keystroke, formatted, and it syncs like any other clip. Dictate one and the transcription happens on your Mac, with the audio never written down.

Pin, group, tag, archiveKeep the clips you paste forever. File things into groups you make and tags that cut across them. Nothing is filed for you.

Paste as plain textOne keystroke pastes what you copied without its formatting, matching the document you are in, and leaves your clipboard exactly as it was.

Snapshots of your historybLine snapshots on Time Machine's schedule: hourly for a day, daily for a month, then weekly. Cleared something you needed? Put that moment back.

bLine's New Shelf sheet: a name, an icon and colour, and rules reading Kind is Screenshots and App contains Figma.

A shelf is a name, a colour and rules. It becomes a pill above the deck with a number of its own.

Different networks? That part is yours to decide.

Two Macs on the same network find each other directly and never need anything else. Home and the office is a harder problem, and bLine's answer is a relay: a small forwarder that passes sealed messages between your own Macs and cannot read a byte of them.

bLine ships without one. There is no default relay and no server of ours in the path. If you want cross-network syncing you deploy the relay yourself, free, on a Cloudflare account of your own — and bLine does it for you: one button, about three minutes, nothing to copy.

How bLine Cloud works →

A meeting point, not storageA relay forwards sealed bytes it has no key for and writes nothing down. When two Macs turn out to be on the same network, the clip goes straight between them and never touches it.
Up to about 12.5 MB a clipImages and documents ride along. Anything larger stays on the Mac that copied it, and bLine says so rather than failing quietly.

One clipboard for all your Macs.

Your clipboard is nobody else's business.

Set it up once, then forget it is there

And a deck of everything you have copied

Different networks? That part is yours to decide.

One clipboard, on every Mac you use.