Last updated: 2026-08-21
Both EPUB Translator and Immersive Translate can translate an EPUB with AI — but they are built for different jobs. Immersive Translate is a subscription browser tool designed for reading the web and documents bilingually. EPUB Translator is a focused, pay-as-you-go tool for turning one book into a finished, downloadable translated .epub you keep. This page compares them honestly so you can pick the right one.
| Dimension | EPUB Translator | Immersive Translate |
|---|---|---|
| Pricing model | One-time, pay per file | Subscription (free tier + Pro plan) |
| Cost for one novel | About $9.50 once ($0.008–$0.025 / 1,000 chars) | Monthly ~$9.99 or ~$69 / year |
| What you get | A finished translated .epub to keep | Bilingual reading + document export by quota |
| Bilingual EPUB | Yes, optional side-by-side output | Yes, side-by-side |
| Target languages | 18 target languages | 100+ languages |
| Translation engine | Large language models, context-aware | 18+ engines (DeepL, GPT, Gemini…) |
| Setup | Web app, Google sign-in, no install | Browser extension / app |
| Best for | Getting one book translated and downloaded | Ongoing bilingual web + document reading |
Immersive Translate is one of the most popular translation tools on the web, with a large user base since 2023. Its strengths are breadth and reading:
If your main need is reading foreign content across the web every day, Immersive Translate is a strong choice.
EPUB Translator does one thing: take a whole EPUB and give you back a clean, valid, translated EPUB. That focus changes the economics and the output.
.epub is yours to keep, share, and read offline in any reader..epub with the original chapters, images, footnotes, and table of contents rebuilt intact — not a live overlay that lives inside a browser extension.We think comparisons should be fair. Immersive Translate supports far more languages (100+ vs our 18 target languages) and is better if you want an always-on reading companion across the whole web. If you need Thai, Hindi, Turkish, or dozens of other languages today, Immersive Translate covers more ground.
Choose EPUB Translator when your goal is a single, finished, well-formatted translated book you download and keep without signing up for a recurring plan.
Yes, for one specific job: translating a whole EPUB into a finished file you download and keep. EPUB Translator is pay-per-file with no subscription, while Immersive Translate is a subscription tool focused on bilingual reading across the web and documents.
Yes. Immersive Translate can translate EPUBs and show them bilingually, and it supports 100+ languages. It works on a subscription with a monthly quota rather than a one-time per-file charge.
It depends on how many books you translate. For a single 500,000-character novel EPUB Translator is about $9.50 ($0.008–$0.025 per 1,000 characters), which is in the same range as a month of a subscription tool — neither is obviously cheaper on one book. What differs is what you are left with: the subscription keeps billing and its export runs against a quota, while the one-time payment ends there and the translated .epub is yours to keep. It also comes out ahead of doing the book yourself in ChatGPT or Claude, where you pay again for every chapter the conversation drags along and again for every section you redo when the markup breaks — that is a sending-strategy difference, not a cheaper model.
Yes. Both can produce bilingual side-by-side output. With EPUB Translator, bilingual mode is an optional toggle that returns a single interleaved .epub at the same price as a standard translation.
Immersive Translate supports many more languages (100+) than EPUB Translator's 18 target languages. If you need a language EPUB Translator doesn't list yet, Immersive Translate is the safer pick.