Lingo.dev

Lingo.dev, made by Replexica Inc. (San Francisco, backed by Y Combinator and Initialized Capital), is a localization platform that automates software translation across languages while maintaining consistent terminology and brand voice, having processed 362 million+ words for customers including Cal.com, Papermark, and Solana. Its "stateful localization engines" persist glossaries, brand voice, and model configurations across projects, and its Retrieval-Augmented Localization (RAL) approach reduces terminology errors by a reported 17-45% versus standard translation. A multi-step pipeline covers source refinement, context enrichment, LLM translation, optional human review, and AI quality scoring, accessible via REST API, CLI, GitHub Actions, and MCP. SOC 2 Type II compliance and a 99.9% uptime SLA support production use. Pricing isn't detailed on the main page; the site references usage tracking per localization engine and per-model cost breakdowns on a separate pricing page. Good fit for a software team that wants localization treated as a persistent, quality-measured engineering pipeline rather than a one-off translation pass with no terminology memory.