Your request history and open tabs are stored locally on your machine and never leave your device.
You can still add headers, manage authentication, and write basic tests to troubleshoot your API responses. Lightweight API Client vs. Full Postman Account Lightweight Client Full Postman Account Cloud Sync No (Local only) Yes (Syncs across devices) Collections Restricted (Manual export only) Full creation and sharing Environments Not supported Full variable management Collaboration Single-user only Team workspaces & comments Login Required When to Use the Lightweight Client download postman lightweight api client
For testing internal or highly sensitive APIs where cloud storage is prohibited by security policy. Your request history and open tabs are stored