Readable vs DeepL Translate

Readable translates PDF files into Japanese while keeping the original layout intact, including tables, figures, and images. Built by NextLab Inc., it targets researchers reading academic papers and business teams working through manuals, reports, and contracts without rebuilding documents by hand.

The reader shows original and translated text side by side so you can scan a translation and jump back to the source line when something needs a closer look. Premium users can register custom dictionaries so product names, abbreviations, and field-specific terms translate the same way every time.

Readable runs in the browser and through a Chrome extension for quick file translation. Pro Standard focuses on English-to-Japanese PDFs, while Pro Premium adds 200+ source languages, larger file limits, and optional ChatGPT-based translation engines.

DeepL Translate converts text and documents between 100+ languages through a browser, desktop app, or API. Paste copy, upload PDF, Word, or PowerPoint files, or route speech through DeepL Voice, and the output keeps formatting on document jobs. The free web translator needs no account for basic text, while DeepL Pro adds glossaries, style rules, and higher monthly character quotas.

Google Translate wins on breadth and zero-friction mobile use. DeepL bets on nuance: its own language model, trained on proprietary data with human linguist input, targets natural phrasing in European and Asian language pairs. Pro glossaries with up to 30,000 entries across 16 languages and translation memory matter more to localization teams than to someone translating a restaurant menu once.

Freelance translators, legal and finance teams, customer support desks, and developers embedding the API use it for client deliverables, contract review, multilingual tickets, and product localization. Enterprise customers cite 86% faster document translation workflows and 10% higher customer satisfaction when support replies ship in the customer's language faster.