© 2025 DualLenz

About DualLenz

Breaking down barriers between you and the books you love.

Our Story

DualLenz was born from a personal journey in language learning. Despite years of studying English and French, I found myself struggling to finish books in these languages. The existing tools couldn't address the fundamental challenges that prevented truly immersive reading experiences in foreign languages.

What I needed was a solution that would allow me to temporarily switch difficult paragraphs to my native language to maintain reading momentum and emotional connection with the text. For complex sentences, I wanted to see exactly how each part mapped between languages and understand the reasoning behind specific translation choices. And for beloved books, I wanted to use my preferred translations rather than relying solely on AI-generated versions.

DualLenz emerged from these needs—a comprehensive tool designed by a language learner, for language learners, that addresses the real-world challenges of reading in a foreign language.

The Problem We're Solving

Disrupted reading flow: Constantly pausing to look up words breaks immersion and emotional connection to the text.

Complex language elements: Idioms, cultural references, and grammar points require extensive research to fully understand.

Translation preferences: Many readers have preferred translators but lack tools to easily compare original and translated text.

Document format limitations: Professional and academic materials often come as PDFs or technical documents, not just books. Learners need to seamlessly navigate these formats while maintaining context and analyzing complex terminology.

The DualLenz Solution

DualLenz transforms how language learners engage with foreign language texts through three core innovations:

Seamless Dual-View Translation

Switch instantly between original and translated text with our intuitive interface. Maintain the emotional flow of reading while having translations available at your fingertips. No more disruptions or lost context—just smooth, continuous reading.

Deep Language Analysis

With a single click, understand not just the translation but why it's translated that way. We identify and explain idioms, grammar points, and cultural references. Words are precisely mapped between languages, giving you complete clarity on meaning and usage.

Custom Translation Mapping

Already have a preferred translation? DualLenz can map your familiar translated version to the original text, allowing you to leverage translations you trust while still learning the language. This feature bridges the gap between comfort and language acquisition.

Meet the Developer

Hi there! I'm a software developer living on the outskirts of Paris who happens to be passionate about reading in foreign languages. I created DualLenz so that people with the same interest as mine can have a great time reading books in languages they're learning. Reading shouldn't be a struggle—it should be pleasurable!

Get in Touch

Have questions, suggestions, or just want to say hello? I'd love to hear from you! Feel free to write in English, French, or Vietnamese—I can respond in all three languages.

Ready to transform your language learning journey?