Editorial Policy
How we build, test, review, and correct the 77 tools on Toobits.
How we build tools
Every Toobits tool is written from scratch in TypeScript and runs entirely in the browser. We do not use black-box computation services or third-party widgets. If the math for a calculator comes from a standards body (WHO for BMI, IEC for data-storage prefixes, IRS for US tax) we cite that body directly in the tool's How-to-Use or About section. If a formula has multiple accepted variants (tip rounding, age in completed months vs fractional months) we choose the one most commonly expected and document the choice in the FAQ.
How we test
Each tool ships with a written QA pass that covers at minimum: the golden path, empty input, out-of-range input, the largest input a typical user would paste, and behavior on the three most common mobile browsers (iOS Safari, Android Chrome, Samsung Internet). Calculators with branching math (mortgage amortization, percentage change, date differences with DST) are cross-checked against a reference implementation in Python or Excel before publication.
How we review for accuracy
Tools that touch health (BMI, water intake, sleep), finance (loan, tip, percentage, currency), construction (concrete, brick, paint, tile), or legal/administrative topics (age, days between dates) are reviewed against the source formula or standard before we publish the tool page. When a calculator's output is a screening metric rather than a diagnosis — BMI is the canonical example — we say that explicitly in both the tool UI and the FAQ. We do not present screening values as medical advice.
Privacy and data handling
No tool on Toobits sends your input to any server. Every calculation, conversion, image operation, or text transformation runs in the browser tab you have open. Closing the tab erases everything — there is no account, no cloud sync, no analytics event that includes the content of your input. The only server calls on a tool page are for the page itself, the AdSense scripts that fund the site, and the sitemap. Ad serving is contextual (it sees the page URL) but never your tool input.
Sourcing and citations
When a tool references a third-party standard (WHO BMI classification, IEC binary prefixes, WCAG contrast thresholds, IRS withholding brackets, RFC specifications for hashes) we name the standard in the tool's About section and link to the source where practical. We do not link-farm for SEO. If you find a citation that has changed (a standard updated, a formula deprecated) please flag it via the contact page.
Corrections
If you spot a factual error, a mis-citation, or a calculator producing an incorrect result, the fastest path is the contact page. Every message reaches a human who can fix the tool. We aim to correct factual errors within 48 hours of confirmation. Significant formula changes are noted in the "Updated on" date that appears at the bottom of every tool page.
Advertising and independence
Toobits is funded by display advertising (Google AdSense). Ads never influence tool content. We do not accept sponsored tools, paid placements, or affiliate commissions inside tool output. A calculator will never recommend a bank, mortgage, medication, insurance provider, or other product based on advertiser relationships.
Questions or feedback
Email the team at admin@toobits.io or use the contact page. You can read more about the people behind the site on the team page.