- 🔄 Real-time Sharing: Instantly share pasteboard content across devices, seamlessly.
- 🖥️ Unified Cross-platform: Consistent interface on Mac, Windows, and Linux. No need to change habits.
- 📋 Rich Type Support: Handle various pasteboard types: Text, Color, URL, HTML, RTF, Image, File.
- 🔒 End-to-End Encryption: Using asymmetric encryption to fully protect your data security.
- 🌐 LAN-only Serverless: Local storage, serverless architecture. Privacy protection, in your control.
- 🧹 Smart Space Management: Auto-cleanup options manage pasteboard storage without manual effort.
- 🔍 Built-in OCR: Extract text from images locally — no network calls, your screenshots never leave the device.
- 🤖 MCP Server: Expose your pasteboard history to AI assistants (Claude, etc.) via the Model Context Protocol.
- 🌍 Chrome Extension: Sync clipboard with the browser — copy from a web page on one device, paste on any other.
-
clone the repository
git clone https://github.com/CrossPaste/crosspaste-desktop.git
-
Compile and run the application
cd crosspaste-desktop ./gradlew app:run
First start will download JBR / gradle dependencies.
If you encounter the following error:
FAILURE: Build failed with an exception.
* What went wrong:
java.net.SocketException: Connection reset
> java.net.SocketException: Connection reset
you might need a VPN to download these dependencies.
To configure a proxy for gradle, add the following settings to gradle.properties, and adjust the parameters to match your proxy configuration:
systemProp.https.proxyHost=localhost
systemProp.https.proxyPort=8080
systemProp.https.proxyUser=userid
systemProp.https.proxyPassword=password
systemProp.http.nonProxyHosts=*.nonproxyrepos.com|localhostAdditionally, a series of technical blogs about CrossPaste is being published (approximately one article per week). If you're interested in developing cross-platform applications, you're welcome to read them.
The Chrome extension lives in web/ and is built via Gradle. Node.js (>= 18) is required — the npmInstall task will fetch dependencies on first build.
-
Build the extension
./gradlew :web:build
The unpacked extension is emitted to
web/dist/. -
Load it into Chrome
- Open
chrome://extensions/ - Enable Developer mode in the top-right corner
- Click Load unpacked and select the
web/dist/directory
- Open
The extension auto-discovers a CrossPaste desktop app running on the same machine and syncs clipboard content with it. To iterate on extension code, run npm run dev inside web/ for a fast Vite dev loop, then reload the extension in Chrome. The extension imports a Kotlin/JS core library produced by ./gradlew :core:jsBrowserProductionLibraryDistribution (also run as part of :web:build) — re-run that task whenever you change core/ sources.
CrossPaste is continuously evolving! v2.0 brings the Chrome extension into the sync mesh as a first-class platform. Here's what we're working on next:
- Command-line mode — drive CrossPaste from your terminal and shell scripts
- Plugin system — let the community extend CrossPaste with custom paste types and integrations
This is just a small part of our plans. Want to learn more details and long-term plans? Check out our full roadmap.
Here are some FAQs that have been collected. If you have other questions, please create an issue to let us know.
- 🌟 Star this repository: This is the easiest way to support CrossPaste and costs nothing.
- 🪲 Report bugs: Report any bugs you find on the issue tracker.
- 📖 Translate: Help translate and polish CrossPaste into your language.
- 📝 Contribute: Code, comment on issues, and any contributions that can help the project are welcome.
- 💖 Sponsor: Support financially via GitHub Sponsors to help with ongoing development and maintenance.
