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Now supporting large file batching

Translate .po files safely, even large ones

Translate WordPress themes, plugins, and web apps in minutes. Upload .po, .pot, JSON (i18next), or XLIFF files, keep your site working, and download deployment-ready outputs. No technical knowledge required.

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woocommerce-es_ES.po
# Source: English
msgid "Your order #%s has been received."
msgid_plural "%d items found"
Translated
# Target: Spanish
msgstr "Su pedido #%s ha sido recibido."
msgstr[0] "%d artículo encontrado"
msgstr[1] "%d artículos encontrados"

Large File SupportHow to translate large .po files without breaking your site

Localizing a website or application should not require complex tools or manual cleanup. SimplePoTranslate accepts .po, .pot, .json, and .xliff files, automatically processes them in batches, and delivers clean, ready-to-use translations.

Variables, placeholders, and structure remain intact

Fair usage calculated fairly in the background

Start translating for free
Upload Complete
large-project_FR.po (4.2 MB)
Ready
Processing Batch 1/4
Preserving syntax & variables...
24%

Simple and PowerfulWhy choose SimplePoTranslate?

We handle the complexities of .po localization so you don't have to deal with broken syntax or timeout errors.

4.2MB

Handles large .po files

Translate huge WooCommerce language packs or theme files without splitting them manually.

Translate

Simple for anyone

No developer needed. Upload your file, select languages, and download the result immediately.

msgid"Hello %s"
msgstr""
msgid"Cart"
msgstr"Panier"
Syntax Safe

Developer-ready outputs

Variables, placeholders, and technical syntax are preserved 100% so your site keeps working.

Main Features

What’s included in
SimplePoTranslate?

Explore the tools designed to automate your localization workflow without breaking your code.

AI-powered translation in 40+ languages

Context-aware translations powered by Gemini AI across 40+ languages, ensuring native-feeling results for every locale.

Explore translation FAQ

Batch-based processing

Large .po files are automatically split, processed, and merged seamlessly.

Code-safe handling

Variables like %s, %1$s, {name}, and HTML tags are preserved exactly.

100% Safe

Plural-aware translation

Gettext plural structures are handled correctly during translation.

Read docs

Multiple format support

Upload .po, .pot, .json (i18next), and .xliff files. Our WordPress plugin can also generate .pot files from your theme or plugin. Pro users export all formats in a single ZIP: .po, .mo, .json, .php, .xliff.

.PO.MO.JSON.PHP.XLIFF

Built for real-world localization needs

SimplePoTranslate is designed for more than just developers. Whether you're a SaaS founder, an agency, or a no-code builder, our infrastructure handles the complexity.

WordPress site owners — with a free WP plugin for direct translation
Plugin and theme creators
Agencies managing multiple sites
Start Translating

# Context: Homepage Hero

msgid "Welcome to our platform"

msgstr ""

# Context: Homepage Hero

msgid "Built for scale"

msgstr ""

#: src/components/Hero.tsx:42

msgid "Join %s users today"

msgid_plural "Join %s users today"

msgstr[0] ""

msgstr[1] ""

Usage Quota

High Capacity Active

250,000Strings / Month
PRO
Fair Use Policy

Average ~5–10 words per string. Roughly equivalent to ~1.5 million words.

Simple Workflow

Translate in 3 simple steps

A seamless flow designed to get your localization done in minutes. No complex setups, just results.

1

Upload

Drag and drop your localization file (.po, .pot, .json, .xliff), or use our WordPress plugin to scan and translate directly from your WP admin. We automatically parse the structure, preserving comments and context.

2

Select Languages

Choose your target languages. We currently support 40 languages powered by advanced AI models.

3

Download

Get your translated files in minutes. Ready to deploy to your WordPress site or application.

No command-line tools, no manual string editing, no broken websites. SimplePoTranslate automates the entire .po file translation workflow — from parsing and chunking to AI translation and quality validation. Every translated string goes through placeholder verification and punctuation normalization before delivery.

Pricing

Simple, transparent pricing

Choose the plan that fits your workflow. Start free, upgrade as your needs grow, or pay once and keep translating forever.

Free

Starter
Free

For small projects and testing the workflow.

  • 1000 strings per month
  • .po + .mo output (ZIP)
  • Up to 3 files per month
  • Files stored for 30 days
Start translating for free
Most popular

Pro

Fast
$19/mo
Or $190/year (2 months free)

For serious projects, large files, and frequent updates.

  • 250,000 strings per month

    Fair use: avg ~5–10 words/string. Approx 1–1.5M words.

  • Up to 100 files per month
  • ZIP export: .po, .mo, .json, .php, .xliff
  • Large .po file support (auto-batch)
Upgrade to Pro

Lifetime

One-time
$399pay once

For developers who prefer a one-time payment.

  • Same limits and features as Pro
  • Monthly string quota renews every month
  • No recurring payments, ever
Get lifetime access

Support
Frequently Asked Questions

Can I translate very large .po files?
Yes. SimplePoTranslate uses smart batching technology to handle large .po files — including WooCommerce language packs, theme files with thousands of strings, and enterprise-scale translation projects. Files are automatically split into optimized chunks, processed in parallel by our AI engine, and merged back into a single clean output. Variables, placeholders, and plural forms are preserved throughout the entire process.
What does "250,000 strings per month" mean?
A string is a single translatable entry (msgid/msgstr pair) in a .po file — typically a button label, menu item, error message, or paragraph. Most WordPress themes contain 500–2,000 strings, while large plugins like WooCommerce can have 5,000+. The Pro and Lifetime plans support up to 250,000 strings per month, enough for translating dozens of large projects.
How does the fair usage policy work?
SimplePoTranslate counts usage based on strings, but internally applies weighted counting for very long texts. Each string counts as 1 usage unit by default. If a string exceeds the limit, it may consume multiple usage units to ensure fair usage and cover AI processing costs. Short UI strings typically count as a single unit.
How are long texts counted?
Each string counts as one usage unit by default. For strings that are significantly longer than typical UI text (e.g., full paragraphs or product descriptions), weighted counting applies — one long string may consume 2–3 units. This ensures fair pricing while keeping short strings like button labels and menu items lightweight on your quota.
Are my files used to train AI models?
No. Your uploaded .po files are processed solely for translation and are never used to train AI models. Files are stored temporarily on our secure servers and automatically deleted after 30 days (Free plan) or 90 days (Pro/Lifetime). We use Google Gemini AI via secure API — your data is not retained by the AI provider.
Is there a WordPress plugin?
Yes! Our free WordPress plugin (v1.0) includes a string scanner, one-click auto-translation into 40+ languages, an inline editor for fine-tuning, a .pot file generator, and safe import with automatic backups. Install it from your WP admin and manage everything without leaving your dashboard. Learn more on our plugin page.
View all FAQs
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Translate your .po files the easy and safe way, even at scale.

Join thousands of WordPress developers, theme authors, and agencies who trust SimplePoTranslate for their localization workflow. Start free with 1,000 strings per month.

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