Features

Translate a page in two languages

Translate the page once, then change the view whenever you like. Nothing is translated again.

A Spanish news article read in the bilingual view: the Spanish headline and paragraph in dark ink, each with its English translation under it in red-brown italics. — A Spanish article, read with the English under each paragraph.

Bilingual view: the translation under each paragraph, the original left as it was
Translation only: the translation shows where the original was, and copying gives the translation. The browser's find and screen readers can still reach the original
Show original brings the page back untouched with one click
Links in the original stay clickable
Code, forms, editable areas, hidden text and one-word menu labels are left alone. Text already in your language is skipped

Four looks for the translation

SubtleTea arrived in Europe through Portuguese and Dutch traders in the early seventeenth century.Il tè arrivò in Europa tramite commercianti portoghesi e olandesi all'inizio del diciassettesimo secolo.
UnderlineTea arrived in Europe through Portuguese and Dutch traders in the early seventeenth century.Il tè arrivò in Europa tramite commercianti portoghesi e olandesi all'inizio del diciassettesimo secolo.
HighlightTea arrived in Europe through Portuguese and Dutch traders in the early seventeenth century.Il tè arrivò in Europa tramite commercianti portoghesi e olandesi all'inizio del diciassettesimo secolo.
Dim the originalTea arrived in Europe through Portuguese and Dutch traders in the early seventeenth century.Il tè arrivò in Europa tramite commercianti portoghesi e olandesi all'inizio del diciassettesimo secolo.

One sentence, one paragraph, or the whole page

You do not have to translate everything to read one line.

Select text on any page and a small card shows the translation, with a copy button
Alt+Shift+Y translates the selection from the keyboard
Hold Alt over a paragraph to translate only that paragraph
Alt+A translates the whole page. Visible paragraphs come first, and text that loads as you scroll is picked up

Video subtitles in two languages

The caption line the video shows, with its translation under it, over the video. Where the site provides no captions, there is nothing to translate.

Works with captions the site provides: plain HTML5 video, and YouTube with captions switched on (the CC button)
Follows the video into fullscreen. You set the text size, and a chip on the player turns it on and off
The translation comes from an on-device translator, like everything else. Twinread does not listen to audio
Free translates the whole video, with no daily limit

A Spanish cooking video paused at the end of a caption, with Dual subtitles on: the line Después de comer, nadie se levanta de la mesa over its English translation in italics, and the buttons Pause after each line, Repeat line and Keep this line above the video. — A Spanish video, with the English under each caption line.

A PDF reader with the translation beside it

Open the reader from the popup, choose a PDF or drop it on the page, and read it paragraph by paragraph. It reads PDFs that contain text. There is no OCR, so a scan that is only pictures of text has nothing to read.

Each paragraph with its translation beside it, or under it on a narrow window
Two-column pages are read left column first. Running headers, footers and page numbers are left out
A paragraph is translated when you scroll to it
A PDF you choose is read and translated on your computer. On a tab that shows a PDF, a button opens it in the reader when the site allows the download; otherwise save the file and drop it on the reader
Free reads the whole document. Pro saves it as a bilingual HTML pagePro

The Twinread PDF reader with a Spanish article: each Spanish paragraph on the left has its English translation in red-brown italics beside it, with the language pickers, Save as HTML and Open another at the top. — A Spanish PDF in the reader, the English beside each paragraph.

Keep the phrases you look up

For reading in a language you are learning. A saved word stays with its sentence, ready for review.

Keep a word or phrase from the selection card, with the sentence it came from and its translation
A Saved words page to search, filter by language pair, edit and delete
Open at source: the page at the phrase's sentence, or the video at its second
Free keeps 200 saved words; Pro has no limit
Saved words are marked in yellow on every page you read, with the translation on hover
Export to Anki or CSV, with the sentence on the cardPro

The Saved words page: a Study these in Anki box with Export for Anki and Export CSV, a search box, and five saved words such as han tomado nota and madrugada marked in yellow inside their Spanish sentences, each with its English translation under it. — The Saved words page, with the Anki export at the top.

Your browser translates it, on your computer

Twinread has no translation server. It hands the text to the translator built into Chrome or Edge, or to the engine bundled in Firefox, and puts the result back on the page.

No account and no API key
The browser downloads a small language model once for each language pair. After that, translation works without a connection
Works in Chrome 138 or later, Edge 148 or later and Firefox 140 or later, on desktop. In Chrome and Edge the browser fetches its translation engine on first use, about 20 seconds
At install it has no access to the sites you read (Firefox also reaches Mozilla's model download hosts). It gets access to the tab you use it on, and asks for one site at a time if you switch on Always translate

Add to Chrome, free Add to Edge, free Add to Firefox, free