Free Public Data Tools Every Developer Should Know About

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Free Public Data Tools Every Developer Should Know Aboutdatapeek

As developers, we often need quick access to reliable US data — whether for side projects, research,...

As developers, we often need quick access to reliable US data — whether for side projects, research, or building features. Here are some free tools powered by public government data that I've found incredibly useful.

SalaryByCity

US salary data for 800+ occupations across 400+ cities.

Check it out: salarybycity.com

CostByCity

Cost of living comparison across US metro areas (BEA RPP).

Check it out: costbycity.com

ZipPeek

ZIP code demographics, income, and IRS migration flow data.

Check it out: zippeek.com

DegreeWize

College tuition, acceptance rates, and earnings-to-debt outcome data.

Check it out: degreewize.com

CalcPeek

Free online calculators and unit converters.

Check it out: calcpeek.com

Related Free Tools

  • KotobaPeek — Japanese dictionary with 34,000+ word definitions and POS tagging
  • HomePricePeek — Compare home prices and rent across 500+ cities worldwide
  • RebatePeek — Federal and state energy rebate stacks (IRA credits, DOE)
  • EvictionLawPeek — Eviction laws, notice periods, and tenant rights by state

More from the DataPeek Network

  • ChildCarePeek — Childcare costs by state and care type
  • CatBreedPeek — Cat breed profiles, AAFP Five Pillars, and WSAVA BCS reference
  • NameBlooms — Baby name meanings, SSA cohort interpretation, and popularity trends
  • DrugPricePeek — Prescription drug prices, NADAC data, and pharmacy comparison

All data tools are free and use public US government data. No signup required. Full directory: datapeekfacts.com.