Paste a source string and its translations: the tool flags placeholders that were dropped, renamed, changed type or reordered, for Apple formats (%@, %1$@, %lld) and for Flutter ICU messages alike. Your text stays in your browser, and the tool is free with no signup.
Compared in your browser: nothing is uploaded.
LocalePilot is a desktop app that automatically compares the placeholders of all your translations with the source's (%@, %1$@, %lld, ICU), lists them in a QA center and blocks export until a blocking issue is fixed. It is being finalized for macOS: leave your email to hear about the launch.
%@, %1$@, %d, %ld, %lld, %.2f, %u, %i and %s, position by position. %% is text.{name}, including inside plural and select branches.Rare conversions such as %e or %x are deliberately ignored, so that text like "20%en" isn't taken for an error.
%lld replaced by %@ reads an integer as an object, with a risk of crash.%1$@, %2$@); mixing numbered and unnumbered is undefined behavior.% d read as a specifier. Double the sign: %%.{count} turned into {nombre} changes the API of every locale in Flutter.These cases are detailed in the guide on iOS format specifiers and the guide on ICU placeholders.
The tool only compares placeholders: it does not detect two swapped %@ when the arguments are not numbered, nor a badly translated sentence. It does not interpret ICU apostrophe escaping (Flutter's use-escaping option): '{' is read as a brace. It compares one string at a time; for a whole file, use the ARB missing keys checker or an editor that checks every key.
%@, %1$@ (and other positions), %d, %ld, %lld, %.2f, %u, %i, %s; %% is treated as text. Rare conversions such as %e or %x are deliberately ignored.
In a format string, "% d" is a valid specifier (the space is a printf flag), so "%lld % de remise" holds two specifiers for a single argument. Write "%lld %% de remise".
Yes, by numbering every argument: %1$@ is the first, %2$@ the second, wherever they sit in the sentence. Within one string, everything is numbered or nothing is.
Yes: placeholders in braces are compared with the source's, including inside plural and select branches.
No. Your strings, sometimes not yet released, are compared in the page: nothing is sent.
This tool compares one string at a time. LocalePilot is a desktop app, being finalized for macOS, that compares every key of your ARB, .strings and .xcstrings files and blocks export on a blocking issue.
LocalePilot is being finalized. Leave your email to hear when it launches.