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Element X

Next-generation fast Matrix client for mobile

Matrix & XMPP ★ 951 stars Easy setup AGPL-3.0

Element X is a rewritten, sliding-sync-powered Matrix client focused on speed and a streamlined mobile experience. It connects to any Matrix homeserver for chat and calls.

Official siteSource code

Key features

  • Built on Matrix Rust SDK
  • Very fast sync via sliding sync
  • End-to-end encryption
  • Native Element Call integration

Pros & cons

Strengths

  • Released under the AGPL-3.0 license
  • Easy to set up — beginner-friendly
  • Written in Swift
  • Tiny footprint — runs in 64 MB RAM

Trade-offs

  • Mobile-focused
  • Requires a Matrix homeserver

Is Element X secure?

No known vulnerabilities affect Element X's latest release (release/26.09.2). OSV.dev lists 1 past advisory for the project; none of them applies to this release. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2025-31126, published 2025-04-03 (559 days ago), fixed in 25.03.8

Source: OSV.dev, checked 2026-10-14. How this is measured.

Element X replaces

Self-hosted WhatsApp alternativesSelf-hosted Signal alternatives

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