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Each English paragraph with its Polish translation directly beneath it, in one EPUB. Read the English first; the Polish is there when a sentence stops resolving.
The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.
English and Polish put their information in different places. English relies on word order and small function words; Polish relies on endings and can reorder a sentence almost freely without changing who did what. Seeing the same sentence both ways, again and again in real prose, is how that stops being a rule you memorised and starts being something you read.
Your browser opens the EPUB, walks each paragraph and inserts the Polish beneath it as a sibling paragraph inside the original file. Only the chapter documents that receive a translation are rewritten, so cover, navigation, stylesheet and metadata survive as they were.
Stacked rather than facing columns, because EPUB text reflows to the reader's screen and columns cannot hold their alignment once it does.
A DRM-free EPUB. The bilingual file is assembled in your browser, not on a server.
Names and forms of address are fixed once, so the Polish keeps its footing from chapter to chapter.
Each translation is styled beneath its paragraph, easy to tell apart at a glance.
A complete EPUB carrying the book's own fonts and stylesheets. Polish diacritics render everywhere.
Your eye will go to the Polish — or, if you are Polish, straight past the English. Read the original paragraph first, every time. The moment of not understanding is the practice.
Fifteen pages get translations. The rest of the book stays in English inside the same file.
The text is sent to a server and discarded when the job ends. The file never leaves your device.
Stacked, not side-by-side. Facing columns need a wide screen and fight the format.
The original, every paragraph. Give yourself the few seconds of not understanding before you look down.
Because Polish carries in word endings what English carries in word order and small words. A dictionary gives you the stem and not the ending's work, so the thing you actually need is the whole sentence rendered the other way — which is what sits underneath.
Yes. Kindle has accepted EPUB directly since 2022; email the file to your device or copy it across.
Yes. The browser rebuilds the archive entry by entry and only rewrites the chapter files that received a translation, so everything else passes through untouched.
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The app builds the bilingual version of the entire book, with tap-to-look-up and your reading position synced across devices.
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