LILT vs Tolgee

LILT is an enterprise translation and localization platform from San Francisco, founded in 2015 by Spence Green and John DeNero, NLP researchers from Stanford and Berkeley. It began with adaptive machine translation that learns from each linguist edit and has since become an agentic AI platform that routes content through AI models and, where needed, human subject-matter experts. Customers include Canva, Intel, Lenovo and US defence agencies.

The platform is split into modules: Translate for projects, Assist for AI agents that automate review and workflows, Verify for accuracy checks, Connect for integrations and an MCP server that brings LILT translation into ChatGPT, Claude and Gemini. It connects to more than 100 systems such as Contentful, AEM, Salesforce and Zendesk, and can run LILT's own models or a customer's LLM. Certifications cover SOC 2 Type II, ISO 9001 and ISO 17100, with private, on-prem and air-gapped deployment. Business, Enterprise and Government plans are all quote-based.

LILT fits large companies and public bodies that translate high volumes of product, support and marketing content and need quality guarantees or strict data control. It has no self-serve plan or public pricing, so it is overkill for small sites. Smartling is a broader translation management system with a vendor marketplace, Phrase offers self-serve TMS tiers, and DeepL is the cheap option for raw machine translation without human review.

LILT raised a Series D in mid-2025. Buying tip: ask how human review is priced versus platform fees, since MCP usage is quoted separately.

Tolgee is an open-source localization platform developed by a company based in the Czech Republic. It is built for developers and product teams who want translation management that lives close to the code and lets translators work directly inside the running application.

Its signature feature is in-context editing: with the Tolgee SDK enabled, a translator or developer holds a modifier key and clicks any text in the app to edit its translation in place, and screenshots are captured automatically for context. SDKs cover JavaScript, React, Next.js, Vue, Angular, Svelte and i18next, and there are integrations for mobile formats, a CLI for syncing keys in CI, a Figma plugin and a REST API. The platform includes translation memory, machine translation from engines such as DeepL and Google, AI translation, comments, tasks and review states. The core can be self-hosted for free with Docker, while Tolgee Cloud offers managed hosting with paid plans based on usage, and enterprise features are available for self-hosted installations.

Tolgee fits startups and development teams localizing web apps who value open source, self-hosting and a pleasant developer experience. Its ecosystem of integrations and enterprise workflow features is smaller than those of Crowdin, Lokalise or Phrase, which suit large localization programs with many file types and vendors. Weblate is the other major open-source option and is especially popular with open-source projects.