Simple Translator

How do I translate text privately without uploading it?

Open AnyTool Simple Translator, choose your languages, type your text and press Translate. On supported browsers (desktop Chrome 138 and later) it uses the browser’s built-in on-device AI to translate full sentences locally; on every other browser a bundled offline phrasebook translates common words and phrases. Either way the tool is 100% client-side — it has no server and no cloud translation API, so your text never leaves your device.

On-device AI translates full sentences locally on Chrome 138+
Bundled offline phrasebook works in any browser, even offline
Auto language detection when the browser supports it
Word-by-word phrasebook breakdown with romanisation for non-Latin scripts
No upload, no cloud service, no tracking — 100% client-side

What is

A simple translator is a tool that converts words, phrases or sentences from one language to another. AnyTool’s version is privacy-first: it translates on-device using the browser’s built-in AI where available and falls back to a bundled offline phrasebook, never sending text to a server.

Text Tools

Related terms

On-device TranslationLanguage DetectionPhrasebookChrome Translator API

Frequently Asked Questions

The tool never contacts a cloud translation service. When your browser supports on-device AI it translates locally using the built-in model; otherwise it uses a phrasebook bundled into the page. There is no account, no tracking, and the page works offline after first load, so you can safely translate confidential notes, names and messages.

No. It is 100% client-side, with no server and no cloud translation API, so your text never leaves your device.

A purely client-side tool cannot reach a cloud service, so full sentence translation depends on the browser providing an on-device model. Desktop Chrome 138 and later expose an experimental built-in Translator API that downloads a language pack on demand and translates locally. In browsers without it, the tool honestly falls back to its offline phrasebook for common words and phrases.

Full machine translation needs an AI model. Only browsers with the built-in on-device Translator API, such as desktop Chrome 138 and later, can run one locally.

When you use on-device AI for a new language pair, the browser fetches a language pack it manages itself. The tool shows a download progress bar while this happens. Once installed, that pair translates instantly and offline. The download is handled by the browser, not by AnyTool, and no text is sent anywhere.

The browser downloads a small language pack for that pair, shown with a progress bar. After that the pair works offline.

The bundled phrasebook spans English, Spanish, French, German, Italian, Portuguese, Hindi, Japanese, Russian, Arabic, Chinese and Korean. It groups greetings, courtesy, numbers, food and drink, directions, travel, time and common words, and shows a romanisation in brackets for languages written in non-Latin scripts so you can pronounce them.

It covers everyday words and phrases across 12 popular languages, with romanisation for non-Latin scripts.

Detailed Explanation

Methodology

How On-Device Translation Works

AnyTool Simple Translator is 100% client-side: it has no server and never calls a cloud translation API. On browsers that expose the experimental built-in Translator API (desktop Chrome 138 and later) it feature-detects the global, checks whether the chosen language pair is available, downloads a browser-managed language pack on demand with a progress bar, and translates full sentences entirely on the user device. An optional Language Detector API call can set the source language automatically.

Uses the browser built-in Translator API where available, detected at runtime
Language packs are downloaded and managed by the browser, not by AnyTool
Translation runs locally on the device — no text is sent to any server
Optional on-device language detection sets the source automatically
Honestly degrades to a phrasebook when on-device AI is unavailable

How It Works

The Offline Phrasebook Fallback

Because a purely client-side tool cannot reach a cloud service, full sentence translation depends on the browser providing an on-device model. When that model is missing, the tool falls back to a phrasebook bundled into the page: everyday words and phrases across English, Spanish, French, German, Italian, Portuguese, Hindi, Japanese, Russian, Arabic, Chinese and Korean. It performs a greedy longest-phrase word-by-word lookup and shows romanisation for non-Latin scripts, so it always works, even completely offline.

Phrasebook covers 12 popular languages and works in every browser
Greedy longest-match lookup handles multi-word phrases before single words
Romanisation shown for non-Latin scripts to aid pronunciation
Grouped by greetings, courtesy, numbers, food, directions, travel and time
Word-by-word breakdown flags terms not found in the phrasebook

Privacy & Security

Privacy and Honest Limits

Every operation happens in the browser, so the translated text never reaches a server, there is no account or tracking, and the page works offline after first load. The tool is upfront about its limits: it cannot translate arbitrary sentences without on-device AI, and the phrasebook covers a fixed vocabulary rather than open text. This keeps the core promise — files and text never leave the browser — while still being genuinely useful in every browser.

Translation: on-device (AnyTool) vs typical online translators
Capability	AnyTool	Typical online translators
Text handling	Translated in your browser	Sent to a cloud server
Privacy	Text never leaves device	May log or store submitted text
Full sentences	Yes, on-device AI (Chrome 138+)	Yes, via the cloud
Offline use	Phrasebook always; AI after pack install	No, needs a connection
Language detection	On-device, when supported	Server-side
Cost / signup	Free, no signup	Often rate-limited or gated

Cloud translators send text to a server and can retain it in logs; AnyTool translates locally and uploads nothing. Full sentence translation requires a browser with built-in on-device AI; otherwise the offline phrasebook is used.