The localization category carries the translation-catalog formats every i18n toolchain has to read, all built from one small message set (a greeting, a name-placeholder welcome, button and menu labels) so you can diff the same content across formats. It covers gettext (a .pot template and a translated .po with plural forms), OASIS XLIFF in both 1.2 and 2.0, Apple .strings, Flutter's .arb (with ICU placeholders and metadata), Android strings.xml (with plurals and a string-array), .NET .resx, and i18next JSON. Each format uses its own native placeholder syntax (%s, %@, {name}, %1$s, {0}, {{name}}) so interpolation handling is exercised too. Beyond the Latin base locales (English and accented Spanish), there are right-to-left variants in Arabic and Hebrew and CJK variants in Japanese and Chinese, for testing bidirectional text, Unicode handling, and font fallback. Fluent .ftl, ICU MessageFormat JSON, plural/select catalogues, deeper RTL packs, and Crowdin/CSV bilingual exports extend the set. Everything is plain text and opens in the in-browser editor, fixtures for testing localization pipelines, translation-memory and CAT tools, catalog converters, and pseudolocalization.
Filter localization on Browse · 161 files · 21 subcategories
Results start with a representative from each related test family. Use a card’s variant menu or the filters below to reach a specific format, profile, or failure case; every sample retains its own detail page and download.
Gettext PO/POT, XLIFF, Apple strings, Flutter ARB, Android XML, RESX, i18next JSON, plus Fluent .ftl, ICU MessageFormat JSON, bilingual CSV, and Crowdin-shaped exports.
Yes, Arabic, Hebrew, Persian, and Urdu UI packs with dir=rtl for bidirectional layout tests.
Start with one example from each use-case group, then continue through its other test families. Choose a use case, search, or filter to find a specific profile; a card’s variant menu contains its related samples.
65 test families · 161 available files · Page 1 of 4
Android
Arabic Android quantity strings: 4 <plurals> blocks with an <item> for each of the 6 CLDR quantities ar actually selects. Rename to plurals.xml and drop into res/values-ar/ to use it as-is.
Apple
An Apple Localizable.strings file (English), quoted key = value pairs with comments and %@ placeholders, as iOS/macOS apps use per-locale in .lproj folders.
Bidi
Three notification templates in English, Arabic and Hebrew, each given raw and with every interpolation slot wrapped in FSI…PDI, plus four argument sets covering an LTR name in an RTL sentence, an RTL name in an LTR sent
Cjk
A Chinese (CJK) i18next catalog: real Chinese UI strings for testing CJK Unicode handling, wide-character layout, and font fallback.
Cldr
Arabic CLDR cardinal and ordinal plural rules with the exact integer samples that select each category, the equivalent gettext Plural-Forms expression, and a note on the trap the language exposes: a catalog written with
Crowdin
Crowdin-shaped SAMPLE French bilingual export for TMS round-trip tests.
CSV
Bilingual EN→AR RTL CSV SAMPLE for spreadsheet CAT and RTL review tools.
Dotnet
A Arabic (Egypt) resource file built around composite format strings: {0:N2}, {2:P1}, {0:C}, {0:d} and {0:t}, whose rendered output depends entirely on CultureInfo. Includes a whitespace-significant resource guarded by x
Fluent
Mozilla Fluent SAMPLE catalog (Arabic RTL) with placeholders and plural select, for Fluent parsers and CAT tools.
Flutter
A Flutter Application Resource Bundle (English): JSON messages with matching @key metadata (descriptions and typed placeholders) using ICU {name} syntax, as Flutter's gen-l10n consumes.
Formatting
12345.60 in each locale's own currency, with the fraction-digit count and the symbol placement that produced it. JPY takes zero decimals and rounds; six rows separate the amount from the symbol with U+00A0 rather than a
Gettext
A translated gettext .po catalog (Spanish) with a full header, source-location and translator comments, c-format flags, and a plural-form entry, for testing PO parsers and translation-memory tools.
Gettext Corrected
GNU gettext loads all seven original translations using the declared UTF-8 charset. Message IDs are sorted, metadata occupies the empty key, Unicode survives, and the %s placeholder is retained. The corrected catalog pre
I18next
Minimal i18next-style JSON locale pack for de.
Icu
ICU MessageFormat SAMPLE JSON (Arabic) with plural/select patterns for i18n runtimes.
JSON
Flat JSON locale pack for French with Mustache-style {{name}} placeholders.
Plural
English ICU plural and selectordinal SAMPLE catalogue for plural-rule engines.
Pseudo
Pseudolocalization SAMPLE (bracket-wrapped) for i18n layout overflow testing.
The use-case group filter replaces the long list of category sections.
