Overview

Tolgee is a localisation platform for software, and its AI translator speeds up translating apps into other languages. The approach is translate with AI, review with humans: AI produces first drafts quickly and cheaply, then human translators review and refine them for the best quality.

Context-aware translation

The key difference from generic machine translation is context. You can give the AI an overall description of your app and specific context for individual keys, such as where a button appears or what a short word like Share means in that screen. Related keys are used as context too. A developer testimonial on the site praises the ability to train the AI with app-wide and key-specific context. You can also customise the LLM prompts and use brand context so translations match your tone.

Localisation features

Standard features include glossaries for consistent terms, an AI playground for testing prompts, branching, tasks for translators and granular permissions. Tolgee supports in-context editing in your app, and it works with AI coding assistants such as Claude Code through MCP, so developers can manage translations from their coding tools.

Pricing

Tolgee is open source and can be self-hosted, and it offers a free cloud plan. Paid cloud plans include unlimited seats and projects. Annual prices on the site are about 58 euros per month for Translate, 133 euros for Optimise and 373 euros for Manage, with two months free on annual billing. Prices are also shown in US dollars.

Who it is for

It suits development teams localising web and mobile apps, product managers launching in new markets, and companies that already use human translators but want to reduce cost and turnaround time.

Things to consider

AI translation is fast but can miss cultural meaning, legal wording or marketing nuance, so keep human review for important languages and texts. Plan how strings are extracted from your code, because good keys and context make a big difference to quality. Self-hosting saves fees but requires maintenance. Check AI usage limits on each plan, and confirm how text is sent to language model providers if your content is confidential.

The free tier makes it easy to test on one project.