TransFlow
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Features How it works Pricing FAQ Get TransFlow free

Your words. A world without limits.

Understand more.
Stay in your flow.

Read, watch, and write in any language without leaving the page. One free extension, with the AI of your choice.

Get TransFlow free See it in action
  • No account
  • No API key to start
  • 60+ languages
  • 60+target languages
  • 5interface languages
  • 4translation engines
  • Freeno account needed

Live demo

Select. Translate. Keep reading.

No tab switching, no copy-paste. Highlight a sentence on any page and the translation appears right beside it — in the language you actually read.

A real selection, translated in place — a 14-second silent loop.

Four things you will use every day.

Real screenshots from the extension, no mockups.

1Full pages

Read the whole page in two languages.

One click puts a translation under every paragraph. The original never disappears, the layout never breaks, and content that loads later gets translated too.

  • Original stays visible above each translation
  • Works on infinite-scroll feeds and dynamic pages
  • Toggle it off and the page is untouched
A news article with a Vietnamese translation under each English paragraph
2Selected text

Select, press Alt+T, done.

A floating card appears right where you are reading. Copy the result, hear it spoken, retranslate with another tone, or save it to your phrasebook.

  • Pick a tone: natural, academic, technical, business or simple
  • Listen with text-to-speech
  • Never leaves the page or opens a tab
A floating TransFlow card translating a selected paragraph
3YouTube

Subtitles built for learners.

Bilingual captions on any video with subtitles. Click a word for its meaning, mark words as known or learning, and export the whole track as .srt.

  • Vocabulary list ranked by frequency
  • Keyboard shortcuts to repeat and drill
  • Export .srt for offline study
A TED talk on YouTube with English and Vietnamese subtitles and a vocabulary panel
4Images

Draw a box, read the picture.

Menus, memes, comics, screenshots: draw a region on any image and the text inside is translated. Animated GIFs are read frame by frame.

  • Region pick, screen capture, upload or paste
  • GIF frames become a timestamped list
  • Works with the free cloud quota, a local Ollama vision model or your own provider key
A region selector drawn over an illustration inside an article

And everything else you would expect.

Small tools that make reading in another language feel normal.

Hover to translate

Hold Alt and point at any paragraph. Its translation appears right beneath it; click × to close it.

Write in your language

Turn it on in Settings, then press Space three times in a text field: what you wrote is replaced with its translation.

Phrasebook and history

Your last 50 translations, searchable. Star the keepers and export them as an Anki-friendly CSV.

Dictionary and speech

Select a word (or click one in YouTube subtitles) to see what it means, then hear it pronounced.

Your choice of engine

Chrome’s built-in AI, a local Ollama model, TransFlow Cloud or your own provider key — OpenAI, Anthropic, Gemini and more — in the order you choose.

Free, with no tracking

No account and no tracking. Every extension feature is free; only TransFlow Cloud has a daily quota.

Up and translating in a minute.

  1. 1

    Install the extension

    Use the Chrome Web Store button at the bottom of this page. No account needed.

  2. 2
    ENVIJAKO中文+55

    Pick your language

    60+ target languages and five interface languages. The language AI answers in can be set separately.

  3. 3
    Alt+T

    Select, hover, or type

    Select text and press Alt+T, or hold Alt and point at a paragraph. Turn on typing translation in Settings to also press Space three times in a text field.

Your words. Your choice of engine.

Four engines on one pipeline, tried in the order you choose. Two of them never send text off your machine.

  1. Chrome AIOn-device

    Chrome’s built-in translator and language detector. Text stays on your machine, as long as your hardware and language packs support it.

  2. OllamaLocal

    Free software you install on your own computer to run TranslateGemma, Qwen or another model. Text stays on your machine. Setup takes about 10 minutes, including a one-time unlock. Step-by-step setup guide

  3. TransFlow CloudManaged

    The project’s own relay passes your text to a translation or AI provider and then discards it. It never logs what you send; it keeps only quota counters and anonymous abuse-prevention data.

  4. Cloud AIYour key

    Your own key for OpenAI, Anthropic, Gemini, OpenRouter and more — used for generative tasks and as a fallback when the engines ahead of it cannot translate.

TransFlow Cloud comes first by default so the free quota works out of the box. For local-only translation, turn off the cloud engines and use Chrome’s on-device AI or Ollama.

Each engine has its own hardware and setup requirements, so none of them can guarantee offline translation in every case.

Start free. Upgrade your cloud, not your workflow.

Translation itself stays free. Paid plans add cloud quota and translate with AI on every request. Features that have not shipped yet are marked below.

Free

Everything you need to read the web.

$0foreverUSD
  • Every feature: page translation, hover, text fields, dictionary, YouTube, text-to-speech
  • No TransFlow quota when you use local engines or your own provider key (provider limits and costs still apply)
  • Free TransFlow Cloud quota: 300 units a day, standard machine translation
Get TransFlow free
Recommended

Pro

More cloud quota for people who read a lot.

$4.99/monthUSD
  • Everything in Free
  • 20,000 TransFlow Cloud units a month
  • AI translation on every request (Free uses standard machine translation)
  • Priority support (coming soon)
Get Pro

Pro Max

The highest quota, for heavy readers.

$9.99/monthUSD
  • Everything in Pro
  • 50,000 TransFlow Cloud units a month, 2.5× Pro
  • PDF and manga translation (in development)
  • Phrasebook sync across devices (in development)
Get Pro Max

Prices in USD. TransFlow Cloud quota: Free 300 units a day, Pro 20,000 a month, Pro Max 50,000 a month. One unit is up to 1,000 characters (for Explain, Rewrite and Ask: of the question plus the answer); reading one image uses 5. Paid plans also have a monthly fair-use limit on cloud cost that ordinary use never reaches.

Common questions

Is TransFlow really free?

Yes. Every feature in the extension, from page translation and hover to the dictionary, phrasebook, YouTube subtitles and text-to-speech, is free to use. Only TransFlow Cloud has a daily quota, because it costs the project money to run. When the quota runs out, you can keep translating with a local engine or your own provider key.

Do I need an API key?

No. Everyday text translation runs on the free cloud quota without any key. Chrome’s on-device translation needs compatible hardware and downloaded language packs. Your own provider key and a local Ollama are optional extras.

Does it work offline?

It can, with some preparation. For local-only translation, choose Private / offline mode, turn off “Use TransFlow Cloud”, and use Chrome’s built-in translator (which needs a supported language pack and hardware) or a local Ollama model. If TransFlow Cloud stays on, private mode tries local engines first but may still fall back to the cloud.

How do I set up Ollama?

Install the free Ollama app, paste one command so TransFlow is allowed to talk to it, then pick and download a model in Settings → Local Ollama. About 10 minutes, once, and no programming. Open the step-by-step guide

How does image translation work?

Reading text in an image needs a vision model. TransFlow tries a local Ollama vision model first if you installed one, then TransFlow Cloud (each image uses 5 units of your quota, on every plan), then your own vision-capable provider key. Animated GIFs are read frame by frame into a timestamped list.

How do I install TransFlow?

Use the Chrome Web Store button at the bottom of this page. It becomes active as soon as the listing is approved.

What is the difference between Pro and Pro Max?

Pro raises the TransFlow Cloud quota to 20,000 units a month and uses AI translation on every request. Pro Max raises it to 50,000 on the same models. PDF and manga translation and phrasebook sync are planned features, not shipping ones. If a feature matters to you, check that it is live before paying.

The web is bigger than one language.

Free to use, and installed in a minute on desktop Chrome.

Waiting for Chrome Web Store review