Gloss — Your Offline Dictionary & PDF Reader

Website link - https://gloss-read.netlify.app/

Understand more. Read smarter. Build your vocabulary.

• Gloss is a powerful Chrome extension that lets you look up words while reading webpages or PDFs, explore alternative meanings, discover synonyms and opposites, and save words for later.
• No accounts, no subscriptions, and no cloud dictionary requests.

What You Get-

Massive Built-in Dictionary

• 1,015,848 words with meanings from WordNet 3.1, Open Multilingual WordNet 2.0, and Wiktionary.
• 466,676 additional word-list entries to help recognise even more words.
• Modern vocabulary, including words like emoji, hashtag, and influencer.

Instant Word Lookup

• Select a word to explore its meanings, examples, synonyms, and opposites.
• Use Alt + click for quick lookups.
• Distraction-Free Reading Mode
• Press Ctrl + Shift + R to enjoy a cleaner reading experience with adjustable text size, column width, focus mode, and optional difficult-word underlines.

Built-in PDF Reader

• Read PDFs and look up words without switching apps.
• Zoom in and out.
• Export collected vocabulary as TXT or PDF.

Your Personal Word Collection

• Save and star important words.
• Export vocabulary as TXT, CSV, Anki-compatible TSV, or Markdown for Obsidian.
• Keep your word history stored locally.

Privacy First

• No account or sign-in.
• Dictionary data included in the download.
• Your reading history and vocabulary stay on your device.

Installation

1. Download and extract the ZIP file.
2. Open chrome://extensions in Chrome.
3. Enable Developer mode.
4. Click Load unpacked and select the extracted Gloss folder.

Read without interruptions. Discover new words. Keep what you learn.

• Get Gloss and turn everyday reading into vocabulary building.