Google Translate is fine for menus, signs and casual messages, but it isn’t private enough for confidential text. When you translate online, your text is sent to Google’s servers. If you’re signed in with Web & App Activity turned on, your translations are also saved to your Google Account. You can delete that history, sign out to keep history on the device only, or download languages and translate offline so the text never leaves your phone.
Here’s what’s stored, how to clear it, and the private alternatives.
What does Google Translate keep? #
It depends on whether you’re signed in. Google’s help page on Translate history says:
- Signed in: “When you’re signed in, your translations automatically save to the cloud.” Cloud history requires Web & App Activity to be on.
- Signed out: “you can only get your on-device translation history.”
- Web & App Activity off: you can still see and delete old history, but new translations aren’t added to it.
Separately from history, any translation done online is processed on Google’s servers, like a search. The Translate app, the website and translations built into Chrome or Android all work that way unless you’re using a downloaded offline language.
How to delete your Google Translate history #
In the Translate app, open History. Google offers “Delete today, Delete custom range, Delete all time, or Auto-delete.” Google notes it can take up to a couple of hours for cleared history to disappear from the app.
To stop new translations from being saved to your account, either sign out of the Translate app or turn off Web & App Activity in your Google Account. Google says that if you don’t want cloud history in the app, you must sign out.
How to translate offline with Google Translate #
Offline languages keep the translation on your phone. Per Google’s offline guide:
- Connect to Wi-Fi.
- Open the Translate app.
- Choose the language at the bottom of the screen.
- Tap the Download button next to it. If there’s no button, that language can’t be used offline.
Camera translation also works offline for some downloaded languages. If you want to be certain nothing is sent, turn on airplane mode before translating. With no connection, the app has to use the downloaded pack. Google also mentions higher-quality packs you can upgrade to, which tells you the default offline packs trade some quality for size.
Is DeepL more private than Google Translate? #
Only if you pay. DeepL’s privacy policy draws a sharp line:
- DeepL free: “We process the content you upload and their translations or improvements for a limited period of time to train and improve our neural networks and algorithms.”
- DeepL Pro: texts “will not be used to improve the quality of our services,” are kept only as long as needed to produce the translation, and are deleted afterwards.
So free DeepL is no more private than Google Translate for sensitive text. DeepL Pro is a reasonable choice for business documents if your employer allows it.
Private ways to translate, compared #
| Option | Where translation happens | History kept | Works offline | Best for |
|---|---|---|---|---|
| Google Translate, signed in, online | Google’s servers | In your Google Account | No | Everyday, non-sensitive text |
| Google Translate, offline language | Your phone | On-device, unless synced | Yes | Travel, signs, menus |
| DeepL free | DeepL’s servers | Used for training for a period | No | Non-sensitive text |
| DeepL Pro | DeepL’s servers | Deleted after translation | No | Work documents, if allowed |
| Apple Translate, on-device mode | Your iPhone | On your iPhone | Yes, with downloaded languages | iPhone users |
| Local AI model | Your phone | On your phone | Yes | Private messages, letters, photos of documents |
Apple’s Translate app lets you download languages and has an on-device mode in its settings, so iPhone users have a built-in private option for short text and conversations.
When should you avoid online translators? #
Keep these out of any online translation tool:
- Contracts, NDAs and anything marked confidential at work
- Medical records, test results and prescriptions
- Legal letters, immigration documents and court papers
- Messages that name other people in private situations
- ID documents, bank statements and passwords
Many employers ban pasting work material into free online translators for exactly this reason. For the wider picture, see using AI at work without leaking data.
Translating privately with a local AI model #
A language model on your phone can translate, and it does something dedicated translators don’t: it can explain. You can ask why a phrase is used, whether a reply sounds too formal, or what a letter actually wants you to do.
Personal LLM runs models entirely on your phone, with no account. Gemma 4 E2B, a 2 GB download, is built by Google DeepMind for phones and covers more than 140 languages. Paste a message or an email and ask for a translation, or photograph a letter, sign or menu and ask a vision-capable model to read and translate it. Nothing is uploaded, and it works in airplane mode.
Know the limits before you rely on it:
- Common languages go best. Quality drops for rarer languages and regional dialects, as we explain in offline AI in other languages.
- There’s no voice input. For spoken conversation, a dedicated translator app with a conversation mode is the better tool.
- Small models can miss nuance. For anything with legal or medical weight, use a professional translator.
For signs and menus in particular, see asking AI about a photo offline. For a full comparison of translation apps, see offline translation on your phone.
Frequently asked questions #
Does Google Translate store what I type? #
If you’re signed in with Web & App Activity on, yes, translations are saved to your Google Account history until you delete them or auto-delete removes them. Signed out, history stays on your device. Online translations are processed on Google’s servers either way.
Is Google Translate safe for confidential documents? #
Not for anything truly confidential. The text goes to Google’s servers when you’re online, and your employer or client may forbid that. Use an offline language pack, an on-device translator or a paid service with a no-retention policy that your organization has approved.
Does Google Translate work without internet? #
Yes, for languages you’ve downloaded. Download them on Wi-Fi in the Translate app. Camera translation also works offline for some languages.
Is offline Google Translate private? #
When your phone has no connection, the translation is done by the downloaded language pack on the device, so the text isn’t sent anywhere. History may still sync to your account later if you’re signed in with Web & App Activity on.
Is DeepL safer than Google Translate? #
DeepL Pro is, because DeepL says Pro texts aren’t used for training and are deleted after translation. The free version uses your texts to train its models for a period, so it’s not a privacy upgrade over Google Translate.