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Budget Tracker

Zero-Based Budgeting
LIVE Cloudflare WorkerChart.jsLocalStorage

What it is

Zero-based budgeting: every dollar assigned a job before the month starts. Zero-Based Budgeting 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.

All arithmetic done client-side. Chart.js pie and bar charts update on each entry. CSV export uses the RFC 4180 format compatible with Google Sheets and Excel. Short p31ca.org URL 302 → workers.dev (probe: worker-spa-budget-tracker).

Core features

Zero-based budgeting: every dollar assigned a job before the month starts

SNAP-aware categories: food, housing, utilities, transportation, medical, legal

Income vs. expense chart with Chart.js — safe-to-spend calculation updates live

Safe-to-spend number prominent in the top bar — the one number to watch

Export to CSV for benefits documentation or grant reporting

How to use

1Set monthly income at the top — safe-to-spend starts at that number
2Add expenses by category as they occur — safe-to-spend decreases in real time
3Export at month end for documentation — CSV matches SNAP eligibility report format

Architecture

All arithmetic done client-side. Chart.js pie and bar charts update on each entry. CSV export uses the RFC 4180 format compatible with Google Sheets and Excel. Short p31ca.org URL 302 → workers.dev (probe: worker-spa-budget-tracker).
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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