DeepLoc: One-Click Localization & AI Translation

Localize your whole Unity game from one window.

DeepLoc scans your scenes, prefabs and C# scripts, translates them with DeepL, and switches languages at runtime. Text, sprites, audio, video, materials and prefabs all follow the player's language, and Arabic, Hebrew and Hindi render correctly in TextMeshPro.

HOW IT WORKS

1. Scan: find UI Text, TextMeshPro, hard-coded script strings and localizable assets across your build scenes and prefabs.

2. Translate: send missing text to DeepL in batches. Placeholders like {0} and tags like <color> are protected, and DeepL can still reorder the sentence around them.

3. Ship: localized components update the moment you call SetLanguage, and the Language Selector remembers the player's choice.

WHAT YOU GET

• DeepLoc Editor: one window with Strings and Assets tables, per-language coverage, filters for missing, broken and unused entries, Find usages for every key, and locks that keep DeepL away from your manual edits.

• Script Scanner: finds player-facing string literals in your C# and replaces them with GetTranslation calls, one string or a whole file at a time. Preset rules skip logs, Unity API names, paths, lookup tables and editor-only code, and an "Only UI text" mode reports just what reaches the screen. Strings that can't safely become a call (const fields, field initializers, constructors) are listed but never rewritten.

• Right-to-left: Arabic and Persian letter shaping (contextual forms, lam-alef, tashkeel) and Hebrew reordering for TextMeshPro and legacy UI Text.

• Devanagari: Hindi, Marathi and Nepali with the vowel sign ि in the right place and real conjuncts, half forms and reph in TextMeshPro, which can't shape Indic text on its own. One click bakes the glyphs from the included Noto font.

• Fonts: one click adds Noto fallbacks for Arabic, Hebrew, Devanagari, Japanese, Korean and Chinese. Glyph validation lists characters your fonts can't draw.

• Google Sheets sync: push keys to a sheet, let translators work there, then review every added and changed cell before you apply it. CSV works offline.

• Pseudo-localization and a Scene view language switch to catch truncation and hard-coded text before release.

• Plural forms, per-platform text ("Tap" on mobile, "Click" on desktop) and a generated LocKeys class for compile-time-safe keys.

• Optional Addressables support that loads only the active language.

RUNTIME COMPONENTS

LocalizedText (UI Text, TextMeshPro UI and 3D), LocalizedImage, LocalizedSpriteRenderer, LocalizedRawImage, LocalizedMaterial, LocalizedVideo, LocalizedAudioSource, LocalizedPrefab and LanguageSelector. Implement ILocalizedAsset to add your own.

REQUIREMENTS

• Unity 2019.4 or newer; Built-in, URP and HDRP

• TextMeshPro

• A DeepL API key for translating in the editor (DeepL offers a free API plan). Your game doesn't need it at runtime, and the sample scenes run without it.

INCLUDED

Full C# source with no DLLs, sample scenes with ready-made translations, and a user guide.

Asset uses Google Noto fonts (Noto Naskh Arabic, Noto Sans Hebrew, Noto Sans Devanagari, Noto Sans JP, Noto Sans KR, Noto Sans SC) under the SIL Open Font License, Version 1.1; see Third-Party Notices.txt in the package for details.