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Replace New Tab with a focused EPUB, PDF & TXT reader. Highlights, vocabulary, 15+ themes, optional BYOK AI assistant. **Your reading space, always one tab away.** Instant Book Reader replaces Chrome's default new-tab page with a clean, distraction-free reader for your own EPUB, PDF, and TXT files. Drop a book in once and every new tab takes you back to where you left off — no app to launch, no website to load, no account required. • You read books across many short sessions and want a frictionless way to pick up where you left off. • You want to highlight, look up, and translate words while you read — without leaving the page. • You want AI-powered summaries, explanations, and key highlights at your fingertips — using your own API key. • You want to actually learn the words you encounter, not just look them up and forget them. • You don't want your reading history or your books uploaded to anyone's server. **What you get:** 📖 Multi-format reader — EPUB, PDF, and TXT, all rendered cleanly with 15+ themes (light, dark, sepia, and more), adjustable fonts, line spacing, and PDF view modes (single page, continuous scroll, two-page spread). 🎨 15+ reading themes — from warm cream to deep dark mode, with a custom theme builder so you can create your own. 📑 Table of Contents — nested chapter navigation for EPUBs with one-click jump. Includes fallback parsing for books with non-standard TOC formats. 🤖 AI Assistant (bring your own key) — open Settings → AI Keys, paste an API key from Anthropic, OpenAI, Google Gemini, or OpenRouter, and unlock chapter summaries, "explain this" on any selection, key-point extraction, and chat-style Q&A. Your key is stored locally and requests go directly from your browser to the provider you chose. No backend, no proxy. The reader works fully without AI if you'd rather not add a key. 📚 One-click define — select any word and see its definition, phonetic, and pronunciation audio inline. Powered by a free public dictionary API; falls back to Google text-to-speech for pronunciation when no human recording is available. 🌐 Inline translation — translate any selected text into 10 languages without copying it elsewhere. Requires an AI key (same one you use for the assistant). 🧠 Vocabulary builder — every word you define is automatically saved with the sentence you saw it in. Review your collection with spaced-repetition flashcards (Leitner box: 1d → 3d → 7d → 14d → 30d → mastered). Quiz yourself with fill-in-the-blank using your own saved sentences. Export everything as CSV for Anki, Notion, or anywhere else. 🖼️ PDF thumbnails — a bottom strip shows page previews so you can jump to any page visually. 📐 Resizable panels — drag the edge of any sidebar to resize it. Library, TOC, AI, Highlights, and Words each get their own panel. 🔒 Local-first, no sign-in — your books, highlights, vocabulary, and reading positions live in your browser (IndexedDB + chrome.storage.local). The extension has no accounts, no cloud sync, and no backend. Nothing about your reading is sent anywhere unless you trigger a feature that explicitly calls out to a third-party service (see Permissions below). • storage — saves your books, highlights, vocabulary, reading positions, settings, and (if you choose to add one) your AI provider API key on this device. • api.dictionaryapi.dev — fetches word definitions when you use Define. • translate.google.com — fetches pronunciation audio when no other recording is available. • api.anthropic.com / api.openai.com / generativelanguage.googleapis.com / openrouter.ai — only contacted if you add an API key for that specific provider in Settings → AI Keys. No requests are made to any of these otherwise. This version removes the Google Sign-In and cloud-sync features advertised by earlier 1.0.x builds. AI is now bring-your-own-key only.
Definer - Word Translator, Ask AI, Dictionary Extension
Select text to translate, define, or ask AI. A word translator and dictionary extension for webpages, PDFs, and EPUBs. Stop interrupting your reading flow to switch tabs just to define a word or translate a phrase. Definer is a powerful word finder and browser extension that brings the dictionary directly to you. Whether you are reading a complex article, studying a foreign language, or just need a quick synonym, this tool acts as your personal reading assistant. Simply select any text on a webpage to instantly trigger the popup bubble. Unlike a basic Google Dictionary extension, Definer integrates multiple data sources, allowing you to use it as a paraphrase tool, an encyclopedia searcher, or a translation hub. It streamlines how you consume content online, making it the perfect solution for anyone wondering how to search for a phrase on a website without losing their place. ✅ Instant definitions with zero clicks—just select the text to see meanings ✅ Built-in AI paraphraser to help rewrite sentences and understand context ✅ Support for EPUB files to help you read ebooks in the browser ✅ Integrated PDF translator capabilities (requires using the bundled PDF reader) ✅ American Sign Language dictionary support for visual learners ✅ IPA translator to help you master correct pronunciation ✅ Advanced figurative language recognition for complex idioms ✅ Multiple search engines included like Wikipedia and DuckDuckGo Unlock the Power of Multiple Sources Definer goes beyond simple definitions by allowing you to customize where your data comes from. While many users look for a standard Google Dictionary experience, this extension lets you connect to a wide array of informational tools. You can perform a specific Wikipedia search to get historical context or use the Bing Image Search source to see visual representations of the selected text. If you value privacy and variety, you can toggle on the DuckDuckGo search integration. The extension also supports custom iframes, meaning you can add your own preferred data sources. This flexibility makes it far more versatile than a standard mouse tool or linguistic extension. AI-Powered Writing and Reading Aid Writing and understanding complex text is easier with artificial intelligence. Definer includes an AI grammar checker to help you verify syntax and structure. If you run into a complicated sentence, you can use the AI source as a paraphrase tool to simplify the language. This is incredibly useful for students and professionals who need to grasp difficult concepts quickly. The AI Paraphraser ensures you understand the nuance behind the words, not just the literal definition. For language learners, context is everything. Definer acts as a comprehensive multilingual dictionary that helps you bridge the gap between languages. If you are learning English, the English IPA translator feature is essential for understanding phonetic pronunciation. For those interested in non-verbal communication, the inclusion of a Sign Language dictionary makes this a unique educational tool. You can also use this tool to translate Google results or foreign news articles instantly. It is designed to be a robust translation software that sits quietly in your browser until you need it. By handling phrase search requests efficiently, it helps you learn idioms and figurative language that standard dictionaries might miss. Most extensions stop working when you leave a standard HTML webpage, but Definer works hard to be accessible everywhere. It includes a specialized reader that allows for PDF translator functionality, so you can read reports and papers with the same ease as a blog post. Additionally, it supports EPUB files, turning your browser into a fully functional ebook reader with instant lookups. For Students: detailed research often requires checking multiple sources. Instead of opening new tabs to search Wikipedia or DuckDuckGo search engine results, get the info right in the popup. For Language Learners: Use the IPA translator and phrase search features to master pronunciation and usage. The extension serves as a complete linguistic extension for your daily practice. For Professionals: Use the AI grammar checker and paraphrase tool to refine your emails and reports, ensuring your communication is clear and professional. For eBook Readers: Load your books into the EPUB reader and enjoy a seamless reading experience where every difficult word is just a text selection away from a clear definition. How to search for words on a page? Simply select the text you want to look up using your mouse. The Definer popup will appear instantly with the definition or translation. Can I use it as a free word search tool for PDFs? Yes, but you must open the PDF using the integrated PDF reader that comes with the extension. This allows the word finder features to work on document formats. Does this work as a word search online tool for foreign languages? Absolutely. It functions as a multilingual dictionary and translation extension, supporting dozens of languages for both input and output. How to search for a word on a page using AI? Select the word or phrase, and choose the AI source in the popup bubble. You can ask for definitions, synonyms, or even ask it to explain the text like a tutor. Is this better than a standard Google Dictionary? Definer offers more customization. While it can provide similar definitions, it also offers AI integration, PDF support, and access to other search engines like Bing and Wikipedia. If something isn't working properly, here's what you can try: Restart your browser. This often fixes minor glitches. Temporarily disable other extensions. They can sometimes conflict with each other. Reinstall the extension. If all else fails, a fresh install might do the trick. Still having issues? Head over to the r/lumetrium_definer subreddit or seek support via email. Include screenshots of the issue if possible, as this might help resolve your problem more quickly. Be sure to mention which browser you're using. You can always leave a review if you have any thoughts or suggestions. If you'd like to chat, report a bug, or share ideas, come join our Reddit community: https://www.reddit.com/r/lumetrium_definer On Reddit, you can find release notes, see what features people are requesting, participate in discussions, and even get sneak peeks of upcoming updates before they launch. Want to reach out directly? You can email me (the author of this extension) at definer@lumetrium.com
PageTurn EPUB Reader
Seamless EPUB reader / Book reader, font customization, color themes, and more - PageTurn, Your Personalized Reader Extension Introducing PageTurn Book Reader - Your Personalized Reader Extension 📖✨ Unlock the world of seamless EPUB reading with powerful customization features: 📚 Read EPUB books effortlessly 📂 Open local files, drag & drop, or open internet links with ease 🚀 Automatically open EPUBs while downloading 🌐 Enjoy offline reading anytime, anywhere 🔤 Customize your reading experience: fonts, font size, line spacing, and reading width 🎨 Explore built-in color themes: light, sepia, grey, dark 📑 Navigate with ease using the table of contents, bookmarks, and annotations Transform your reading journey with PageTurn - where every word comes to life. Download now! 🚀📚
CastReader — Free Read Aloud for Kindle, Articles, PDFs · TTS + Highlight
Listen to Kindle, PDFs, articles & WeChat books with synced paragraph highlight. 100+ free AI voices. No signup, no limits. Tired of zoning out mid-article? CastReader reads any long-form webpage out loud while a paragraph-level highlight follows along — your eyes and ears stay locked on the same content. Like a teacher pointing at every line. Built specifically for the platforms where most TTS extensions break: 📚 Kindle Cloud Reader — read entire books with reliable auto page-turn (across 30+ regional storefronts: read.amazon.com / .co.uk / .co.jp / .de / .fr / .in / .com.br / etc.). Handles Kindle's blob image rendering — the reason most TTS extensions fail on Kindle. 🇨🇳 微信读书 (WeChat Read) — canvas-rendered books that block ordinary text extractors. CastReader reads them naturally, with auto chapter advance. 📄 Online documents & collaborative tools — long documents in iframe-heavy editors that other TTS extensions can't reach. Works across major online document and collaborative writing platforms. 🤖 AI chat tools — listen to long AI responses while you do something else. Works with every major AI assistant chat interface. Average response length we handle: 35,000–116,000 characters. ✂️ Selected text — highlight any passage on any page → click 🎧 → instant read aloud. No need to extract the whole article. ✓ Paragraph-level highlight, not word chaos. Most TTS extensions blink one word at a time and you lose the context. CastReader highlights the whole paragraph so you can scan ahead and back. Like reading along w ✓ Auto-scroll keeps the current line visible. Long articles fl look away. ✓ Auto page-turn on Kindle and WeChat books. Entire books playp. Commutes, gym, doing dishes — just keeps going. We're theonly Chrome extension that handles this reliably across all Kindle regional stores. ✓ Resume where you left off. Reload the page, walk away mid-chapter — the extension picks back up. ✓ 9 languages auto-detected from content, not page UI. English, Chinese, Spanish, Portuguese, Japanese, Korean, French, German, Hindi. Reading a Chinese WeChat post while logged into an English Google account? CastRe anyway. 🆓 Free with no usage caps — CastReader: always free ✅ / Mostmo) 📚 Reliable on Kindle Cloud Reader — only CastReader 🇨🇳 Works on canvas-rendered books (微信读书) — only CastReader ✏️ Paragraph-level highlight — CastReader ✅ / Most others: word-only blink 📖 Auto page-turn through entire books — only CastReader ✉️ No signup required — CastReader ✅ / Many others: email required 🌐 Content-based language detection — CastReader ✅ / Most oth on multilingual sites) Built for these readers → Long-form readers who keep losing focus mid-article → Students absorbing dense readings or research papers → ESL learners hearing pronunciation while reading → Commuters and walkers who want their eyes free → ADHD / dyslexic readers needing dual-channel focus → Knowledge workers reading 100K+ char AI responses → Anyone with a 47-book Kindle backlog they want to actually f No account, no email, no credit card. No premium tier, no ad ious device-level usage analytics with opt-out in settings. Fulldisclosure at castreader.ai/privacy — we explain exactly what we track and why. Built by indie devs who got tired of paying $13/month for read-aloud and getting a clunky popup that didn't work where we actually read. Most TTS extensions break on the platforms where you'd most want them —ng, WeChat's canvas-rendered books, iframe-nested documents, AIstreaming responses. CastReader is built specifically to make long-form reading on those platforms actually work. If you're nodding along to any of this, give it a try — it's free, takes 5 seconds to install, and you can uninstall in one click if it's not for you. Bonus feature in 1.1.5+: click 📺 on any reading page and the same TTS pipes into a 9:16 vertical overlay with looping gameplay video and TikTok-style word-by-word subtitles. Built as a one-day joke. Genuinely impast one of us.
AI Translator: Word Document DOCX, TXT, EPUB with ChatGPT
Translate Word Documents and EPUB Ebooks in 1 click to multiple languages using ChatGPT Translate a complex Word Document without breaking the structure ChatGPT and Claude are known for their capabilities to provide accurate translations into multiple languages, but are unable to work with Word documents with layout and formatting. AI-Translate.online is using AI models to translate text parts of the documents, leaving images, charts, tables, and other elements exactly where they belong. 1) Pick a Word file from your device. 2) Select target language(s). You can choose multiple languages at once by holding Ctrl/Cmd. 3) Select translation model. In short, GPT-4o-mini is ideal for common or widely spoken languages, while GPT-4o is recommended for complex texts, professional documents, or lesser-known languages. 4) Click Translate. You'll see the progress bar and the result file will be downloaded once finished. The file will retain all your original formatting, images, and layout.
