Question 1

Are these tools really free?

Accepted Answer

Yes — all tools are completely free with no usage limits. There is no signup required, no credit card, and no trial period. The tools are funded by Better i18n's paid plans, which you can explore if you need a full translation management platform.

Question 2

Do these tools run in my browser?

Accepted Answer

Yes. Every tool on this page runs entirely in your browser. No files, locale data, or ICU messages are sent to any server. Your data stays on your machine.

Question 3

Do I need to create an account to use these tools?

Accepted Answer

No account or signup is required. Open any tool and start using it immediately. If you later decide to manage your translations at scale, you can sign up for Better i18n — but that is entirely optional.

Question 4

What tools are available?

Accepted Answer

There are five tools: Locale Explorer for browsing 250+ locales with Intl API examples and plural rules; ICU Playground for testing ICU message syntax with live preview; Translation File Converter for converting between JSON, PO, XLIFF, ARB, YAML, CSV, and more; Cost Calculator for estimating localization costs; and Hreflang Generator for creating correct hreflang tags for multilingual SEO.

Question 5

Can I use these tools offline?

Accepted Answer

Once the page has loaded, the Locale Explorer, ICU Playground, and Hreflang Generator work fully offline because all computation happens in the browser. The File Converter and Cost Calculator also run entirely client-side, so they too work without an internet connection after the initial page load.

Free i18n & Localization Tools

Locale Explorer

ICU Playground

File Converter

Cost Calculator

Hreflang Generator

Questions about the free tools

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