Mazelingo

Mazelingo is a browser-based language learning tool that mixes original and target-language sentences for bilingual reading practice. Paste up to 10,000 characters, choose two different languages and adjust the reading ratio. Tap a sentence to switch between its original and translation, request AI grammar and vocabulary explanations in the source language, or listen through browser speech. It supports Japanese, English, Chinese, Korean, Spanish, French, German and Portuguese, with synced reading history for signed-in users. Pregenerated interactive samples are free without registration. New translations and AI explanations require an account and credits; ratio changes, sentence toggles and browser speech do not consume credits. Paid credit packs and subscriptions are available. Text is sent to AI services when translation or explanation is requested, and AI output may contain errors. It is a language reading tool, not a maze game or an unlimited free translator.