i18n JSON Validator BETA
Validate your localization files and catch missing keys, inconsistencies and potential issues before release.
- ✓Flat JSON
{ "key": "value" } - ✓Nested JSON
{ "key": { "nested": "value" } } - ✓Placeholders
{name}, %s, {{value}} - ✓HTML tags
<b>, <a>, <br> and more
Tip: Name your files with the language code (e.g. en.json, pl.json, de.json) for best results.
What this validator does, and what it will not do
A validator, not a translation service
Files are compared against a base file and reported on: missing and extra keys, type mismatches, placeholder and inline-tag differences, empty values and strings still identical to the base. No content is translated, suggested or stored, and the files are discarded as soon as the report is built. A string flagged as untranslated may be perfectly correct, as brand and technical terms often are.
FAQ
How is the base file chosen?
By default the largest, most complete file in the set, since that is almost always the source language. Every other file is compared against it, so the base is 100% by definition.
What counts as a placeholder mismatch?
The tokens the runtime interpolates, such as {name} or %s, differ between the base string and the translation. That is a real defect: at best the value never appears, at worst the formatter throws.
Why is a key reported as untranslated?
Its value is byte-identical to the base. Often that is a brand name, a code sample or a unit, and it is correct. It is reported separately from hard errors for exactly that reason.
Are my files uploaded and kept?
They are sent to our server to be parsed and compared, then dropped. Nothing is written to disk, indexed or shared.
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