Translate a JSON or YAML file without matching strings by hand

Upload a JSON or YAML file with interface strings. Only the values are translated. Keys, nesting and indentation stay exactly as they were.

Try it with your file

Plug the file straight back into your app

Localization files have a strict structure: keys, nesting and field types. Translating them by hand means copying strings back and forth without breaking a single comma or bracket. SonikaAI recognizes the interface strings, translates only those, and returns a file in the same format with the same keys — no manual matching required.

A snippet of a localization file where only the text values are highlighted, while keys and brackets stay unchanged

What you can use it for

A new interface language for your app

Export your app strings to JSON or YAML and get back a translated version with the same keys — no manual matching of strings.

Nested structures without loss

Deeply nested objects and arrays are typical in localization files. The structure and field order stay the same after translation.

The text gets translated, placeholders don't

Placeholders like `{name}` or `%s` inside a string are not translated or lost — only the surrounding text is.

What actually gets translated

SonikaAI translates only the text values meant for people to read: interface strings, hints and messages. Object keys, identifiers and placeholders inside strings are left alone, and indentation, field order and the overall file structure stay exactly as they were — so the result can be used in place of the original.

How to translate a localization file

1

Upload a JSON or YAML file.

The format is detected automatically.
2

Choose the target language.

Pick the language you want the file translated into.
3

Start processing and download the finished file from your account.

You can track progress from your account and download the result once it's ready.
4

Plug the file into your app and check the key strings.

Spot-check a few strings to make sure placeholders and formatting are still intact.

Need ongoing translation through the API?

This tool is especially useful when you need more than a one-off uploaded file — for example, regular translation of localization files with every app release. Get in touch with us to learn more about integration on our business page.

Translate CSV files and product catalogs

Translate the text columns in a CSV file and get back the same file in another language. Numbers, IDs and codes stay untouched, so the structure is ready to import as-is.

Translate XML files with tags kept intact

Translate the text inside an XML file — a CMS export, settings file or data feed. Tags and attributes stay exactly as they were, so the result opens fine in the same program.

B2B

The B2B add-on unlocks book and document workflows, centralized organization user management, usage tracking, data protection, and REST API access.

JSON, YAML, CSV and XML translation services compared

Translating a config file or a data export? Compare what each service gives you back — a ready file in the same format, or a project you still need to export.

Tools

Translate your localization file

Upload a JSON or YAML file and check the result with your own file. Start with a free sample, and use a plan or one-off payment for full processing.