Updates

Calculator and dataset changelog

A public log of meaningful calculator, guide, source, and dataset changes. Calxo updates are prepared locally, reviewed in GitHub, and shipped to production on Vercel.

Dataset

Public data directory, catalog dataset, and source registry

2026-07-08

Added a dataset directory plus generated JSON and CSV distributions for calculator catalog metadata and official source profiles.

Data directory Calculator catalog JSON Source registry JSON

Calculator

Creator revenue, EV, sustainability, and AI productivity calculators

2026-07-05

Expanded calculator coverage for social media monetization, EV savings, charging costs, solar ROI, home energy, and AI tool ROI scenarios.

Social media monetization EV and sustainability AI productivity

Content

Health, food, and walking-calorie guide expansion

2026-07-01

Added practical health and nutrition guide coverage around body fat, macros, calorie deficits, restaurant calories, walking calories, and stairs calories.

Guides Health calculators Food calculators

Operations

Publisher resources and citation guidance

2026-06-27

Published a resource page for writers, educators, and publishers who want to cite calculators, embed widgets, or use structured formula data.

Publisher resources Widgets

Dataset

Formula library and global tax reference datasets

2026-06-23

Published searchable dataset pages with JSON and CSV distributions for calculator formulas and selected 2026 tax and retirement reference markers.

Formula library 2026 tax and retirement reference

Release flow

Source-backed changes should include the effective date, last verified date, source URL, affected calculators or datasets, and any assumption changes before production deployment.

Browse data downloads