Undertow reviews and corrects the AI translations in your Crowdin project. A native linguist checks every string and edits what needs editing. The price follows the effort: strings that need fewer changes cost less, and the difference goes back to your Crowdin Credits.

Why Choose Undertow?

Effort-based post-editing

We start from the full translation rate and reduce it based on how much each string actually needed. A string approved without changes costs half the translation rate. A string we rewrite costs the full rate. The edit effort is measured in Crowdin for every string, so you can check it.

Fair pay for linguists

Our linguists are paid the same way, by real effort. You work with experienced people who are paid fairly for careful work.

Specialists who learn your product

Each language has a dedicated native specialist. They learn your brand, your product, and your terminology, and they know your content better with every task.

A price that follows your AI

As your AI setup improves, strings need fewer edits, and the price of each task follows.

Help with your AI setup

When you want your AI translations to need less editing, we can help you improve your setup in Crowdin: glossaries and style guides written for AI, prompts, and context at project, file, and string level. Our corrections then feed back into your configuration.

Crowdin account setup

We can also help you set up your Crowdin account, connect it with the tools you already use, and automate as many steps as possible.

20 languages from English

Bulgarian, Chinese (Simplified and Traditional), Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Spanish, Swedish, Thai, Ukrainian, and Vietnamese.

Human Review for Your AI Translations

For B2B tech companies that use AI translation and want people to check the content that matters.

Order a task directly in Crowdin, or contact us if you want to talk about your setup first.