Translate Any File Online Without Breaking the Structure
Upload your localization file, pick a target language, and download a perfectly reconstructed translation in seconds – variables, keys, and code stay 100% untouched.
No account required Files processed in-memory 20+ Languages
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"The AI translator built for developers and i18n teams. No broken variables. No corrupted structure. Just clean translations, instantly."
Zero Structure Corruption – Every Key, Variable & Tag Protected
Our AST parser protects template variables like {{name}}, %s, and HTML tags during translation. What goes in comes back out – structurally perfect, every time.
Translate a File Free"welcome": "Hello {{user, you have %d items."
"welcome": "Hola {{user, tienes %d elementos."
Instant AI Translation for 20+ File Formats
Batch-stream translation with real-time progress. Supports JSON, YAML, HTML, Markdown, PO, XLIFF, SRT/VTT, and 13+ more. Files are processed in-memory – never stored on disk.
Upload Your File NowEvery Format. Every Framework. Zero Corruption.
Whether you use i18next, Rails i18n, Django, Vue-i18n, WordPress, or raw HTML – structrans translates your files without breaking a single tag, key, or variable.
JSON i18n Files
Deeply nested keys, arrays, pluralization rules, and ICU parameters preserved exactly.
.json files supportedHTML Templates & Pages
Translates inner text nodes while leaving HTML tags, attributes, scripts, and structural hierarchy intact.
.html / .htm supportedAny i18n Framework
Compatible with i18next, react-intl, vue-i18n, next-intl, Rails i18n, Django, and Angular i18n files.
Framework-agnosticXLIFF & Markdown
Full support for XLIFF translation exchange files, Markdown documentation, and XML-based localization formats.
.xliff / .md / .xml supportedPO & Gettext Catalogs
Translates msgstr entries while preserving msgid keys, plural forms, and C format specifiers. Ideal for WordPress, Django, and PHP apps.
.po / .pot supportedYAML & Properties
Handles Rails i18n YAML, Java .properties, and Flutter ARB files without breaking indentation, anchors, or key structure.
.yaml / .properties / .arbVideo Subtitles & Captions
Translate SRT and VTT subtitle files for YouTube, e-learning, and streaming – all timecodes stay 100% untouched.
.srt / .vtt supportedDocumentation Sites
Translate Markdown docs for Docusaurus, Starlight, Hugo, or MkDocs – frontmatter, code blocks, and links stay intact.
Docs-readyTranslate Any File Format Online
Select a file format below to start translating with 100% structural integrity protection.
Word DOCX
.docxPDF Document
.pdfPowerPoint
.pptxJSON
.jsonHTML
.html, .htmXML
.xml, .dtdYAML
.yaml, .ymlMarkdown
.mdCSV / TSV
.csv, .tsvText
.txtSRT Subtitles
.srt, .sbvVTT Subtitles
.vttGettext PO
.po, .potXLIFF
.xliff, .xlfiOS Strings
.stringsJava Properties
.properties.NET RESX
.resxFlutter ARB
.arbApple Plist
.plistINI Config
.iniDITA XML
.ditaInCopy ICML
.icmlFluent FTL
.ftlAlso need to convert between formats?
SRT → VTT · JSON → YAML · PO → XLIFF — 26 format pairs, 100% in-browser, free.
Developer Resources & Tool Comparisons
Master structure-safe i18n file translation across JSON, ARB, PO, XLIFF, and YAML formats. Explore tool comparisons, CI/CD pipeline automation guides, and developer workflows.
StrucTrans Tool Comparisons & Alternatives
See how StrucTrans compares to Google Translate, traditional enterprise TMS platforms, and manual localization workflows in preserving JSON syntax and ICU placeholders.
Software Localization & i18n Blog
In-depth technical guides on React i18next JSON, Flutter ARB, iOS .strings/.xcstrings, and GNU Gettext PO translation without breaking syntax or placeholders.
Frequently asked questions
How does structrans protect my template variables?
Our parser creates an Abstract Syntax Tree (AST) of your file and replaces variables (like {{username}} or %s) with protected token IDs. After translation completes, the token IDs are reconstructed back into exact variable syntax.
Are my files stored on your servers?
No. All file parsing and translation streaming happen strictly in-memory. Files are never saved to disk or persistent databases.
What file formats does structrans support?
Structrans supports 20+ file formats: JSON, YAML, HTML, Markdown, PO/POT (Gettext), XLIFF, CSV, XML, Java Properties, SRT & VTT subtitles, Flutter ARB, iOS Strings, .NET RESX, Apple Plist, DITA, INI, ICML, plain TXT, and more. Try any format free – no account needed.
What happens if a translation batch fails?
structrans marks failed batches in the interactive side-by-side view with a retry option so you never lose completed translation progress.
Do I need an account to use structrans?
No! You can translate up to 3 files per session for free without signing up or entering credit card details.
Ready to translate your files free – without breaking the structure?
Join thousands of developers and i18n teams who translate files instantly with zero corruption.