Immersive Foreign Language Reading
Infinity Unfolds, Between the Lines
All-in-one foreign language reading software with tap-to-translate, POS analysis, AI parsing, and spaced repetition. Supports EPUB/TXT/SRT/VTT/Markdown/MOBI/AZW3/FB2/CBZ formats.
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Best for early users who want launch updates, beta invites, and concise release notes.
Free during Beta · Supports macOS 12+ · Windows 10+ · Linux (Ubuntu/Debian/Fedora)
Designed for Language Learners
From reading to mastery, every step is carefully crafted
Multi-language Support
Supports English, Japanese, French, German, Spanish, and more. Auto-detects text language for tailored learning assistance.
Click to Look Up
Encounter a new word? Just click to instantly see definitions, phonetics, and examples — without breaking your reading flow.
Part-of-Speech Analysis
Intelligent POS tagging makes nouns, verbs, and adjectives clear at a glance, helping you understand sentence structure.
AI Deep Parsing
AI analyzes complex sentences, providing grammatical breakdowns and cultural context to make difficult texts clear.
Spaced Repetition
Smart review system based on the Ebbinghaus forgetting curve. Automatically adds looked-up words to your study plan.
10+ Format Support
EPUB, TXT, SRT, VTT, Markdown, MOBI, AZW3, FB2, CBZ — one app for all your reading needs.
Immersive Reading
Carefully tuned typography, custom fonts, theme switching, and focus mode create the most comfortable reading environment.
Learning Analytics
Track reading time, word lookup history, and vocabulary mastery. Let data drive your language learning journey.
Clean & Elegant Reading
Focus on the text itself, return reading to its pure form
Reading Interface - Clean typography, immersive experience
Screenshots coming soon
Dictionary Panel - Definitions, examples, and POS at a glance
Vocabulary Management - Smart review, scientific memorization
AI Parsing - Deep understanding of every sentence
Learn Anywhere, Anytime
Runer is designed for language learners in every situation
Academic Research
Read foreign papers and textbooks, instantly look up technical terms. AI parsing helps you overcome language barriers and focus on content.
"No more switching between dictionary and PDF"
Leisure Reading
Enjoy foreign novels in their original language. Click to look up words without breaking your reading flow while building vocabulary.
"Finally I can read original novels smoothly"
Test Preparation
Preparing for IELTS, TOEFL, GRE, JLPT? Extensive reading practice combined with intelligent vocabulary review efficiently improves language skills.
"My vocabulary grew fast reading news daily with it"
Frequently Asked Questions
Everything you might want to know about Runer
Runer offers a free version with basic reading and dictionary features. Advanced features like AI deep parsing and unlimited vocabulary sync require a Runer Pro subscription.
We currently support EPUB, TXT, SRT, VTT, Markdown, MOBI, AZW3, FB2, CBZ, and more. PDF support is in development.
Yes, after signing in, your lookup history, vocabulary, and reading progress automatically sync to the cloud, allowing seamless switching between devices.
Select a sentence or paragraph, click the AI parse button, and the system will analyze grammar, provide detailed explanations, and cultural context. Internet connection required.
Based on the Ebbinghaus forgetting curve, the system schedules reviews just before you're about to forget. Words you look up during reading are automatically added to your review plan.
We take data privacy seriously. All data transmission is encrypted, and you can choose to keep data local only without cloud sync.
Start Your Reading Journey
Choose your platform and download now
macOS
12+ · 85 MB
Windows
10/11 · 92 MB
Linux
Ubuntu/Debian/Fedora · Coming soon
Completely free during Beta, no credit card required