Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
Look up detailed information for any country — flag emoji, ISO codes, capital, currency, languages, dialing code, TLD, and timezone.
No country found matching your search. Try a different term or check the spelling.
Country information lookup provides quick access to essential data about any country in the world — official name, ISO 3166 codes (alpha-2, alpha-3, numeric), capital city, currency with ISO 4217 code, official languages, international dialing code, top-level domain (TLD), region, continent, and timezones. Each country entry includes its flag emoji for visual identification.
This tool contains data for all 195 UN member states plus several dependent territories and disputed regions. The complete country database is embedded directly in the page, so lookups are instant with no server requests. Developers, travelers, and business professionals use country information for localization, internationalization (i18n), address validation, phone number formatting, currency conversion, and geographic data analysis.
All 195 UN member states plus dependent territories, overseas regions, and disputed territories — totaling over 200 entries with ISO 3166-1 codes.
Compiled from official ISO 3166 standards, United Nations statistics, and IANA timezone database. Embedded in the page for instant offline-usable lookups.
Yes. ISO alpha-2 and alpha-3 codes are standard for localization (i18n), payment processing, shipping, and data analytics.
This tool provides country dialing codes. For full phone number validation, use the dedicated Phone Number Validator tool.
No. The complete database is embedded in the page. All lookups are performed client-side.
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