instant messaging for professionals


zipper will be available as a standalone application on desktops (Mac, Windows, Linux), on mobiles (iOS, Android), as well as in any web browser. This will allow you to communicate and exchange documents conveniently whether you’re in the office, at home or on the road. Our first prototype is a web application which you can test in most browsers.


Link your zipper account with your preferred cloud storage provider, so that all documents received through zipper get automatically stored to your storage account. A simple solution for backing up and conveniently accessing documents. We plan to support all major providers. Our prototype currently supports Dropbox.


zipper is the first messaging system to introduce certified documents (or recommended letters) for the digital age. We are leveraging the blockchain technology for independently certifying that a document has been correctly transmitted between a given sender and receiver. The price for a certification will be only around 10% of the price of a physical certified letter.


Our system offers end-to-end encryption for all messaging traffic, document transfer, and voice/video calling. Our servers for front- and back-end are located in Switzerland. In addition, we will offer the possibility for users to authenticate via mechanisms such as SuisseID, MobileID, and mTAN, aiming to maximize the integrity of our platform.

About us

Join us in making business communication more direct, more secure, and more convenient.

zipper Instant Messaging is a Swiss startup aiming to revolutionize business communication.

Our goal is to offer a truly modern alternative to paper and email, by creating a messaging platform focused on bringing the latest technological innovations to the fingertips of professionals: In-app voice and video-conferencing, fast document exchange, group messaging, message tracking and read-receipts, strong authentication, digital signatures, and end-to-end encryption.

Our first two innovations, cloud storage connection and blockchain certification for documents, are just the start of our plan. Future development will include in-app payments and cash transfers, automated services (bots) for scheduling meetings, API's to office management platforms, and more!


jean-françois alarie

Founder / CEO
Electrical engineer / MBA, worked in aerospace and later in banking. Has the startup bug and is committed to make this venture fly!

philipp bucher

Chief Developer
IT expert, programmer, consultant and entrepreneur. Was programming WAP in his garage when most people still hadn’t heard of smartphones!

dr. daniela brauckhoff

Security Advisor
PhD in network security from ETH Zurich. Expert on all matters related to cybersecurity. Kick-ass product manager.

lucas betschart

Blockchain Advisor
Co-founder Blockchain Source. Top blockchain expert in Switzerland.


zipper is looking for a motivated, entrepreneurial IT crack, possibly as co-founder!

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