A clipboard manager that syncs files between iPhone and Mac
Most clipboard managers stop at text. KeyPaste can also store managed file attachments, but whether an attachment syncs depends on how it was added and its size. This guide explains those boundaries so you know what will appear on another device.
Save files, not just text
KeyPaste handles text, rich text, images, and file snippets. On Mac you can explicitly drag or import a file. On iPhone and iPad, use the file picker, drag-and-drop, or the Share sheet to import a managed copy. Automatic clipboard capture on iPhone and iPad does not save files.
Files automatically captured from Finder on Mac are different: KeyPaste keeps a local reference to the original instead of copying or uploading it. If the original file moves or is deleted, that reference can become unavailable.
How file sync works
Eligible managed attachments sync through your iCloud (CloudKit) under the same Apple Account—nothing is routed through a developer server.
- Managed attachments up to 25 MB can sync.
- Managed files from 25–100 MB stay on the source device; there is no setting to enable large-file sync.
- Finder file references remain local to the Mac because KeyPaste does not copy or upload the original.
Sync timing is managed by the system, so it can depend on your network, iCloud sign-in state, Low Power Mode, and Low Data Mode.
Why it’s useful
Explicitly import an eligible PDF or image as a managed attachment on one device and it can become available from the KeyPaste library on another after iCloud finishes syncing. The destination app still determines whether and how that content can be pasted. This workflow is not a replacement for transferring large files or Finder-only references.