Observed arrival · 2026-11-12

EHR Sandbox, with patients named Al Lergy and Polly Pharmacy

ehrsandbox.com Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

A free, no-signup sandbox for testing SMART on FHIR apps against made-up patient records.

Landing page captured for the 2026-11-12 issue.

For: SMART on FHIR app developers
Worth noticing: The 24 fictional patients live at Mockingbird General in Placebo Falls, Minnesota, and include coded clinical records.

Field notes

Users paste a SMART launch URL, choose one of 24 fictional patients and optionally a practitioner, then run the app against the site's FHIR R4 server. The sample records include conditions, medications, labs, vitals, and other coded resources using LOINC, SNOMED CT, RxNorm, and CVX. Public writes reset nightly; the site says saved team data is planned, not available.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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