Click Select a file and choose files from your PC, or drag and drop them into the upload area.

To upload a directory, select it through the UI or drag and drop it into the upload area.

Alternatively, click Copy-paste data and paste file contents into the text box:

Original filename: Lokalise detects language ISO codes in filenames and highlights them. These will be replaced with the %LANG_ISO% placeholder upon import and substituted back with the actual language codes when exporting.
You can adjust the filename by clicking on it:
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File format.

Number of detected translation keys and word count.

Detected language: Lokalise auto-detects the language or uses Google Translate. If incorrect, you can manually adjust it.

Replace \n with line break — converts \n characters into actual line breaks within the Lokalise project editor. This makes the text easier for translators to read. When exporting, these line breaks can be converted back to \n.

Convert to universal placeholders — in your translations, you might use special placeholders to represent dynamically inserted values. When working across multiple platforms, such as Web and Android, each platform may require these placeholders to be formatted differently. To streamline this, Lokalise allows you to store all platform keys within a single project and automatically converts these placeholders into a universal format. When you export your translation files, Lokalise will then convert these universal placeholders back into the platform-specific formats required by each platform.

Detect ICU plurals — ICU (International Components for Unicode) provides a standard for handling plurals and other language-specific variations. Enabling this option allows Lokalise to recognize and display ICU plural expressions correctly. To learn more about ICU, please check our Complete guide to ICU message format.

Tag keys — you can tag the keys affected by your upload. Choose existing tags or create new ones, and decide whether to tag newly created, updated, or skipped keys.

Differentiate keys by file — this option prevents merging keys with the same name across different files. It’s useful if you need to keep similar keys separate based on their original files.

Fill empty keys with key names — if a key doesn’t have a value, the key name itself will be used as the value. You can update these values later.

Hide from contributors — make newly added keys visible only to project admins. These keys can be made visible to contributors later.

Custom translation statuses — if custom translation statuses are enabled in your project settings, this option lets you assign specific statuses to inserted, updated, or skipped keys during the upload process.

Enable automations — apply any existing automations to the uploaded keys. For more details, refer to the Automations documentation.

Pre-translate with 100% TM matches — Lokalise checks your translation memory (TM) for 100% matches and automatically applies these translations to the uploaded keys. Note that this feature cannot be used simultaneously with Enable automations.

Replace modified values — if you're uploading a translation file that includes keys already present in the project, the Lokalise uploader, by default, will keep the existing values for those keys unchanged. However, if you want to update the translations for these existing keys, you can enable the Replace modified values option.

Enable cleanup mode — when this option is enabled, Lokalise will delete any keys and their translations that are not found in the uploaded file. This is a powerful feature, so use it with caution! Before the upload is finalized, Lokalise will prompt you to confirm the deletion to ensure you don’t accidentally remove important data.

Imported files

Number of keys inserted, updated, and skipped

Imported languages

Status of each file