Machine translation, not reviewed by a native speaker. In case of doubt, the French text prevails.
Kryptline is a sovereign instant messenger — chat, groups, voice and video, end-to-end encrypted, with minimised metadata. Matrix interoperability targeted, zero telemetry, hosted in the European Union.
Kryptline is an end-to-end encrypted instant messenger, sovereign and European: 1:1 and group chat, voice/video calls and file sharing, with minimised server-side metadata. It is the sovereign alternative to WhatsApp and Signal for business and the public sector, hosted in the European Union.
Teams chat, decide and share files on consumer messengers hosted outside Europe. Even when content is encrypted, metadata — who talks to whom, when, how much — stays exploitable, and the infrastructure depends on providers subject to extraterritorial laws. Business and the public sector have almost nothing sovereign built for them.
Messengers hosted outside Europe: sensitive communications escape European control.
Content may be encrypted, but who talks to whom, when and how often often stays visible and monetisable server-side.
Consumer apps aren't built for the compliance, governance and openness that business and the public sector need.
Kryptline brings together everything you expect from a modern messenger — chat, groups, calls, files — on sovereign foundations: end-to-end encryption, minimised metadata, European hosting and targeted interoperability.
1:1 and group conversations, delivery receipts, reactions, replies and threads, presence — a complete, fast and fluid instant messenger on desktop and mobile.
Messages, calls and files end-to-end encrypted: the server never sees the content. Kryptline builds on proven, standardised modern encryption.
Encrypted voice and video calls, encrypted file sharing, all in the same sovereign app, without routing through a non-European third party.
Interoperability with the Matrix ecosystem is targeted: communicate beyond a single provider, stay open, and avoid locking users into a silo.
What Kryptline does — best-in-class, with sovereignty on top.
Real-time messages, delivery receipts, reactions, replies and threads, presence, drafts.
End-to-end for messages, calls and files. The server never sees the content.
Encrypted 1:1 and group calls, in the same app, with no non-EU dependency.
Documents, images and attachments end-to-end encrypted, without passing through a third party.
Engineering target: keep the server as blind as possible, content-free logs, no contact-book harvesting.
Openness toward the Matrix ecosystem: communicate beyond a single provider, no silo.
Windows/macOS/Linux and iOS/Android apps, from the same portable core.
Groups, governance and compliance for business and the public sector, not just consumers.
Infrastructure in the European Union, no critical non-EU dependency.
Content never leaves your devices in clear text, and the footprint left on the server is kept to the strict minimum.
What you can verify, and what we commit to.
Encrypted chat, groups and calls for teams, without exposing sensitive conversations to non-European services or an advertising model.
A European alternative to consumer messengers, hosted in the EU, encrypted and with minimised metadata, for staff communications.
Kryptline completes email (Sekervia + Mailkrypt): a 100% European communication suite, from mail to real time, under one account.
Kryptline is in construction and opening early access. Write to us for a pilot or an evaluation — business, public bodies and the public sector first.
Kryptline is an end-to-end encrypted, sovereign European instant messenger: 1:1 and group chat, voice/video calls and file sharing, with minimised metadata. It is the sovereign alternative to WhatsApp and Signal for business and the public sector, hosted in the European Union.
Yes. 1:1 and group messages, as well as calls and file sharing, are end-to-end encrypted: the server never sees the content. Kryptline builds on proven, standardised modern encryption.
Interoperability with the Matrix ecosystem is a targeted goal, to communicate beyond a single provider and stay open, without locking users in.
Kryptline targets minimised server-side metadata: no contact-book harvesting, content-free logs, footprint reduced to what's strictly needed to run. The engineering target is to keep the server as blind as possible.
Kryptline is sovereign and European: hosted in the EU, no non-EU dependency, no telemetry or advertising model, built for business and the public sector and integrated into the SANTVIA galaxy.
Windows, macOS and Linux desktop, and iOS and Android mobile apps, from the same portable core.
Kryptline is in construction (early access). Write to contact@santvia.eu for a pilot or an evaluation.
Kryptline is one brick of SANTVIA: digital communication, protection and compliance, hosted in Europe. One account, one sovereign copilot, proof rather than promises.
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