Anthropic enables Claude Code sessions across devices via cloud sync

Claude Code Sessions Now Sync Across All Devices

Anthropichas made its Claude Code research preview accessible from multiple device types, enabling developers to continue active programming sessions on smartphones, tablets, and browsers. The feature maintains session state across platforms, allowing work to resume without restarting the local environment.

What Changed

Previously, Claude Code sessions were limited to their initial access point. The update introduces cloud-based session synchronization, letting users:

• Pause work on a desktop machine and resume on a smartphone
• Access the same session from a tablet while away from primary workstation
• Switch between web browser and native environments seamlessly

The feature applies to locally-running Claude Code instances, maintaining the same security model while adding cross-device continuity.

Implementation Details

The update appears to rely on session tokens or identifiers that persist across devices, allowing the cloud backend to coordinate state without requiring the local Claude Code process to migrate. Users can authenticate on new devices and reconnect to active sessions.

Current Status

Claude Code remains in research preview. Anthropic has not disclosed:

• Specific device compatibility limitations
• Session persistence duration limits
• Whether this feature requires Claude API subscription or Pro tier
• Geographic data residency considerations

What This Means

This addresses a key friction point for developers: many coding tasks require context switching. A developer debugging a bug during a meeting can now reference their local Claude Code session from a phone rather than waiting to return to their desk. For remote teams, it reduces the barrier to impromptu code reviews or rapid iteration cycles.

The feature also suggests Anthropic is optimizing Claude Code for tighter integration into developer workflows rather than treating it as a standalone tool. Multi-device access is table stakes for modern development environments—this brings Claude Code closer to feature parity with traditional IDEs.

However, the lack of clarity on session security, persistence, and authentication methods warrants careful evaluation before deploying Claude Code in sensitive production contexts. Developers should verify data handling policies before using this feature with proprietary code.