Translate a letter with AI
In short: Paste the letter into a translation tool such as DeepL, or an AI assistant, and ask it to keep the tone. Then ask for a back-translation into English to check the meaning. Use a professional translator for anything official.
Who is this for?
People writing to family overseas, migrants dealing with letters in a second language, and anyone who gets a message they can’t read.
What do you need?
- The letter, typed or copied in
- Which language it’s in and which language you need
- A translation tool such as DeepL, or an assistant like ChatGPT or Gemini
How do you do it, step by step?
- Remove private details. Take out ID numbers, account numbers and addresses if you don’t need them translated.
- Translate it. Paste the text into DeepL, or use the prompt below in an AI assistant.
- Ask about tone. For personal letters, ask for a warm tone. For formal letters, ask it to stay polite and formal.
- Check with a back-translation. Ask the tool to translate it back into English. If the meaning has changed, fix the original wording and try again.
- Ask a fluent speaker if it matters. If you can, ask someone who speaks the language to read it before you send it.
What prompt can you copy?
Copy this, then replace everything in [square brackets] with your own details.
Please translate the letter below from [language] into [language]. Keep the meaning and the tone ([warm / formal]). Don’t add anything that isn’t in the original. After the translation, translate your version back into English so I can check the meaning, and point out any phrases that were hard to translate. The letter: [paste the letter]
Which AI tool suits this job?
- DeepL: A dedicated translation tool, simple to use.
- ChatGPT: Can explain tone and tricky phrases.
- Gemini: Handy if you already use Google Translate and Gmail.
Not sure? Our tool finder asks four quick questions and suggests a starting point.
What should you double-check?
- Machine translation can get names, dates, idioms and politeness wrong. A back-translation helps but isn’t perfect.
- For official documents (visas, courts, medical forms) you usually need a certified human translator. In Australia, look for a NAATI-certified translator.
- Keep the original letter in case there’s a misunderstanding.
Common questions
Is AI translation accurate?
It’s often good for everyday letters, but it can make mistakes, especially with names, idioms and formal wording. Check important letters with a fluent speaker.
Can I use it for official documents?
Usually not. Government offices, courts and visa applications often require a certified translation. Check what the organisation asks for.
Is my letter kept private?
That depends on the tool and your settings. Avoid pasting sensitive personal details, and check the tool’s privacy page.
Where can you learn more?
Which other workflows might help?
Checked 15 October 2026. We describe how these tools are designed to be used; we haven’t run formal tests. Features and free plans change, so check the provider’s site. General information only, not legal, medical or financial advice.