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⏱️ 4 min read

Instant 0ms Cross-Device Transfer: Syncing Inboxes with Vector QR Codes

A step-by-step tutorial on using client-side vector QR codes to transfer your active Temp-Mail.im session from desktop to smartphone instantly.

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Written by Temp-Mail.im Privacy & Research Team Verified for accuracy & technical security standards

Frictionless Cross-Device Mailbox Mobility

When testing mobile applications or signing up on mobile-only services while working on your desktop PC, typing long randomized email addresses into your phone screen is tedious and error-prone.

How 0ms Vector QR Sync Works

  1. Open Temp-Mail.im on your desktop browser.
  2. Click the QR Code action button located directly next to your active email display.
  3. Scan the displayed high-resolution vector QR code using your smartphone's default camera app.
  4. Your mobile browser opens the exact same active mailbox session instantly with zero configuration.

Because the QR code encodes the session state directly, handoff happens at 0ms network latency without requiring cloud accounts.

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