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Build a USCIS Case Timeline

Arrange the events in your USCIS case JSON chronologically. See missing timestamps and duplicate events without uploading your data.

By CaseStatusTracker

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How do I read my USCIS case JSON?

Paste or import your own JSON, choose Analyze free preview, then review the event timeline and warnings. The free analysis runs locally; saving or purchasing a report is optional.

  1. Choose data you are authorized to view

    Use your own case JSON. Remove passwords, cookies, tokens and identity documents before pasting. Do not share USCIS login credentials.

  2. Paste JSON or choose a local file

    Provide a case object or an object containing it under data. For a detailed timeline, events must be an array. A supported status-only export can be read with reduced detail. The reader accepts up to 1 MB and 2,000 events.

  3. Analyze and inspect the result

    Choose Analyze free preview. Review the event order, missing timestamps and data warnings. Unknown event codes remain unverified.

  4. Check important information with USCIS

    Compare important actions with official USCIS notices and Case Status Online. A timestamp difference alone does not predict a decision.

How is a USCIS case timeline ordered?

Valid dated events are ordered chronologically in UTC. Undated records are shown separately at the end; their position does not establish when the event occurred.

  • Exact dated duplicates are collapsed; repeated undated records are retained.
  • A record creation date is not always the operation time.
  • Compare earlier and newer exports of the same case to identify newly present events; absent rows may mean incomplete data.

Official case verification: USCIS Case Status Online ↗. The calculations and import behavior above describe this tool.

A fictional reading example

IAF — 2026-07-01T12:00:00Z
FNB — 2026-08-15T12:00:00Z
Unlisted code — time not supplied

Read the complete guide ↗ · Get your own account data ↗

Where should I verify my official case status?

Use USCIS Case Status Online and your official notices to verify case information. This independent reader only organizes the data you supply.

— USCIS Case Status Online ↗

This official resource is for case-status verification. It does not document our account-import links or establish the meaning of internal event codes.

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