Kids Growth — S.J. & W.J. Milestone Tracker

What it is

Height and weight tracking with Chart.js growth curves. S.J. & W.J. Milestone Tracker is a core component of the P31 Labs sovereign cognitive infrastructure stack — built to run offline, deployed to the edge, and designed without dark patterns.

Height and weight time series in Chart.js; milestone lists are general parenting prompts only—not a screening tool. All data is localStorage on-device; use JSON export before switching browsers.

Core features

Height and weight tracking with Chart.js growth curves

CDC percentile bands overlaid on charts for developmental context

Milestone checklists: motor, language, social, cognitive — by age range

Photo journal with date stamps — stored locally, never uploaded

Export: PDF-ready growth summary for pediatric appointments

How to use

1Add a measurement: select the child (S.J. / W.J.), enter height and weight

2Charts update immediately with the new data point plotted against CDC bands

3Check milestone lists for the current age — check off achievements as they occur

Architecture

Height and weight time series in Chart.js; milestone lists are general parenting prompts only—not a screening tool. All data is localStorage on-device; use JSON export before switching browsers.

P31 Labs, Inc. (Georgia nonprofit, EIN 42-1888158) builds open tools for cognitive sovereignty, communication clarity, and family coordination. This page is technical documentation, not medical or legal advice. Mission and support: phosphorus31.org.

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