Translator

Calibrate by task: for common phrases, travel needs, and getting the gist of a message, quality is genuinely useful across major pairs (English↔Spanish/French/German are strongest — more training data). For nuance, idiom, humor, legal or medical content, every machine translator — this one, Google, DeepL — produces drafts requiring human judgment. The round-trip test is a decent smoke check: translate, swap, translate back; if the result mangles your meaning, so did the forward pass. When stakes are real, a human translator isn't a luxury.

No — and unlike most tools on this site, that deserves the plain statement: translation requires sending your text to MyMemory's servers, and their model may incorporate submissions into a public translation memory (that's literally how translation-memory services improve). Fine for the sentences you'd say aloud in public: menus, messages, phrases, homework. Wrong for names attached to private matters, business terms, or anything confidential. This is inherent to every free web translator; the difference here is telling you.

The free anonymous tier of the service caps individual requests at 500 characters and daily volume around 5,000 per connection — the economics of free translation. For longer text, translate in paragraph chunks (which also improves quality: machine translation degrades on very long inputs because context windows and sentence alignment get messy). If you routinely translate documents, the big engines' free tiers with accounts, or DeepL's document mode, are built for that job; this is tuned for the everyday 'what does this say / how do I say this' volume.

Quality tracks training data: pairs between major European languages are strongest; English↔Asian languages (Japanese, Korean, Chinese) are good but produce more awkwardness because the grammar distance is larger — word order, honorifics, and dropped subjects don't map cleanly; smaller-language pairs often route through English internally (pivot translation), compounding errors. Practical tips: translate into your native language when possible (you'll catch errors), keep sentences short and literal, and avoid idioms — 'it's raining cats and dogs' translates as animal weather in more languages than you'd hope.