Polyglot

Polyglot is an AI translation tool that localizes JSON i18n files, plain text, and entire apps into 50+ languages for developers, product teams, and marketers. It automatically detects the source language, preserves i18n key structure so translated files stay drop-in ready, and lets teams lock terminology with glossaries and enforce tone controls for consistent brand voice. Beyond raw translation, Polyglot works as a localization workspace: projects carry version history and style guides, automated quality checks flag issues, and role-based access, progress tracking, and approval workflows keep teams in sync. Developers can manage strings without leaving their editor through a dedicated VS Code extension, while copywriters, marketers, and localization managers handle headlines, campaign copy, and UI strings from the same project. The site advertises processing that is "10x faster" than alternatives and pitches translating an entire app in seconds. Pricing is not published on the homepage; the tool offers a "Get started for free" entry point, but specific paid tiers and limits are not shown. Polyglot is a good fit for teams that want translation tied to real localization workflows rather than one-off copy-paste output.

Developers and product/marketing teams use Polyglot to translate JSON i18n files, UI strings, and app copy into 50+ languages with glossaries and team workflows.