Does any data leave my machine?

No. If you use the on-device engines (Apple Intelligence or local LLMs), no data ever leaves your computer. If you choose to use DeepL or OpenAI API, data is sent to their servers for translation only.

Are API costs (DeepL/OpenAI) included in the subscription?

No. LocaleKit is a 'Bring Your Own Key' (BYOK) tool. We provide the automation platform, but if you choose to use 3rd-party engines like DeepL, OpenAI, or Claude, you will need to use your own API keys and pay those providers directly for their usage.

Which frameworks do you support?

We support native iOS (Swift/Obj-C), Android (Kotlin/Java), Flutter, React/Web (JSON, YAML, PO), and backend files. We are constantly adding more formats.

Yes! The MAX plan includes a CLI tool that runs in GitHub Actions, GitLab CI, Bitrise, and CircleCI to validate and translate strings automatically.

Do I need English as base language?

Not necessarily, but it is recommended. You can configure any language as your source of truth in the workspace settings.

Do you preserve ICU messages?

Absolutely. We have specialized parsers that detect ICU syntax ({count, plural, ...}) and protect it from being mangled by translation engines.

How is the translation quality?

European languages are typically very good. Asian languages are accurate but can be too formal. This is why we provide a way to BYOK (Bring Your Own Key) with remote LLMs or DeepL, ensuring you can always choose the best engine for your specific needs.

HelloBonjour

WelcomeWillkommen

SaveGuardar

EditModifier

LoginConnexion

CancelAnnuler

こんにちはHello

مرحبًاWelcome

ПриветHi

CiaoHello

DankeMerci

AmourLove

PazPeace

世界World

شكراThanks

Translate your entire codebase.
Locally. In seconds.

Select your workspace folder and let LocaleKit detect, translate, and update all your localization files—iOS, Android, Flutter, Web, and more. Everything runs on your machine.

Book a demo

Privacy-first. No cloud required.

v1.0 Now Available for macOS

Trusted by 200+ engineering teams worldwide

“Translation quality is surprisingly good — even our Japanese and Korean reviewers had minimal corrections. LocaleKit paid for itself in the first week by replacing our $800/month translation service with a fixed subscription.”

Camille Chambefort

iOS Engineer at Lydia

“We ship iOS, React Native, and a Node backend — LocaleKit handles .xcstrings, i18next JSON, and .properties from a single workspace. What used to take our team a full sprint now takes an afternoon.”

Nicolas Charvoz

Founder at Nuggets Consulting

“One localekit sync command in our CI pipeline and every PR now ships with up-to-date translations across 10 Android language folders. No more manual XML copying, no more forgotten strings.”

Alexandre Leick

Android Engineer

See it translate a real workspace in seconds

No setup. No scripts. Just select your workspace folder.

LocaleKit — ~/Workspaces/MyApp

How it works

From project setup to translated codebase in minutes.

Step 1/4

Xcode

Android

Flutter

React

Source

GitHub

GitLab

Folder

LocaleKit

Stop managing translations the hard way

Eliminate the friction that slows down your releases.

Manual Copy-Pasting

Wasting hours moving strings from spreadsheets to code files.

Automated Sync

One command to push/pull translations directly to your codebase.

Inconsistent Terms

Different translations for 'Sign Up' across iOS, Android, and Web.

Single Source of Truth

Centralized dictionary ensures your brand voice is consistent everywhere.

Broken Deployments

App crashes due to missing variables (%s) or broken XML tags.

Smart Validation

AI automatically catches syntax errors and missing placeholders before you merge.

Developer Bottlenecks

Engineers manually editing JSON files for every copy change.

Decoupled Workflow

Designers and PMs edit copy; developers just run the sync.

Works across your entire stack

One tool. Every platform. Every format.

Localizable.xcstrings

1{
2  "sourceLanguage": "en",
3  "strings": {
4    "welcome.title": {
5      "localizations": {
6        "fr": { "value": "Bienvenue" },
7        "de": { "value": "Willkommen" }
8      }
9    }
10  }
11}

.xcstrings.strings.stringsdict

Native Apple localization formats with full plural and variant support.

strings.xmlplurals.xml

Complete XML resource handling with quantity strings and string arrays.

.arb files

Application Resource Bundle files with ICU message syntax and intl library integration.

JSONYAMLPOICU

Universal format support for React, Vue, Angular, Next.js, Svelte, and more.

Choose your translation engine

Run models locally on your Mac with MLX — or bring your own API key for cloud engines. Your data, your choice.

No API key. No cloud. Everything stays on your Mac.

MLX

Local LLMFree

Run open-source models directly on Apple Silicon via the MLX framework. Supports Qwen3, Mistral, and Gemma models from Hugging Face.

Apple Intelligence

On-DeviceFree

Use Apple's built-in Foundation Models for context-aware translations. Requires macOS 15.1+ with Apple Intelligence enabled.

Models imported directly from Hugging Face:

26 models

TranslateGemma-4B·4B·3 GB

TranslateGemma-12B·12B·7 GBREC

TranslateGemma-27B·27B·16 GB

EuroLLM-22B (4-bit)·22B·13 GB

EuroLLM-22B (8-bit)·22B·24 GB

Qwen3-0.6B·0.6B·1 GB

Qwen3-1.7B·1.7B·2 GB

Qwen3-4B·4B·8 GB

Qwen3-8B·8B·16 GB

Qwen3-30B-A3B·30B MoE·16 GB

$0No API costs. Runs entirely on your Mac.

Use your own API keys. We never store or proxy your requests.

OpenAI

GPTBYOK

High-quality translations powered by GPT models. Excellent for context-aware, natural-sounding output across all languages.

DeepL

Neural MTBYOK

Industry-leading accuracy for European languages. Built-in glossary support for consistent terminology across projects.

BYOK = Bring Your Own Key. Use your own API keys from OpenAI or DeepL. No markup, no proxy.

Simple, transparent pricing

Pay for the tool, not per translated word.

Pay for 10 months, get 12.

MAX

€99/month/seatexcl. VAT

Billed €1188 yearly

For engineering teams.

Team Seats
Shared Workspaces
CLI Sync (GitHub PRs)
MCP Server
Workspace Cloud Sync
XLIFF format support
Priority Feature Requests

Pro

€39/monthexcl. VAT

Billed €468 yearly

For professional developers.

Unlimited workspaces
Unlimited keys
CLI Translate
CLI Export
GitHub Repository Linking
Priority Support
Shared glossary + DeepL

Solo

€19/monthexcl. VAT

Billed €228 yearly

For indie developers.

10 workspaces
Unlimited apps
1,000 keys per workspace
Unlimited languages
DeepL (BYOK)
OpenAI (BYOK)
Custom Glossary

Free

€0/forever

Perfect for hobby projects.

1 workspace
1 app
500 keys
5 target languages
Apple Intelligence (On-Device)
MLX On-Device Models

Limited Time Offer

Lifetime Access

Get the MAX Plan forever. Pay once, own it forever. Includes all future updates.

No monthly fees Early access features

€999

€2499 value

Only 17 tickets left. 83/100 sold.

Calculate your potential growth

See how much your market expands by adding just a few languages.

My app is currently in

Add translations

Market Impact

CURRENT REACH

1.5Bpeople

POTENTIAL REACH With LocaleKit

3.71B

Growth

+2.21B(+147%)

Additional native speakers reachable by adding selected languages.

See all features →

Frequently Asked Questions

Stop managing translations manually.

Let one tool handle all your localization files. On-device. Secure. Developer-friendly.

Book a demo

LocaleKit

Frequently Asked Questions

Translate your entire codebase.Locally. In seconds.

Trusted by 200+ engineering teams worldwide

See it translate a real workspace in seconds

How it works

Link your project

Choose your engine

Translate locally

Ship your translations