QuickDef – AI Dictionary for PDFs & English Learners
AI dictionary for English learners that works on PDFs and web pages. Double-click words for simple meanings.
As of June 2026, QuickDef – AI Dictionary for PDFs & English Learners has 101 users in the Education category.
Usersup 3266.7 percent+3266.7%
101
101
Ratingno change0%
—
— reviews
Reviewsno change0%
—
Version
1.1.3
Manifest V3
90-day change · In the last 90 days this extension 2 version updates, changed permissions.
History
10 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 3 | — | — | 0.6.3 |
| Apr 17, 2026 | 2 | — | — | 0.6.3 |
| Apr 24, 2026 | 47 | — | — | 0.6.3 |
| May 1, 2026 | 59 | — | — | 1.1.2 |
| May 8, 2026 | 69 | — | — | 1.1.2 |
| May 12, 2026 | 77 | — | — | 1.1.2 |
| May 18, 2026 | 86 | — | — | 1.1.2 |
| May 24, 2026 | 103 | — | — | 1.1.2 |
| May 31, 2026 | 111 | — | — | 1.1.2 |
| Jun 6, 2026 | 107 | — | — | 1.1.3 |
| Now | 101 | — | — | 1.1.3 |
Changelog
- Apr 24, 2026host_permissions
https://api.dictionaryapi.dev/*, https://quickdef-backend-production.up.railway.app/*
https://api.dictionaryapi.dev/*, https://quickdef-backend-production.up.railway.app/*, https://xknbnzdurorlpaedirrs.supabase.co/*, https://quickdef.app/*
Permissions & access
- Permissions
- storage
- Host access
- https://api.dictionaryapi.dev/*, https://quickdef-backend-production.up.railway.app/*, https://xknbnzdurorlpaedirrs.supabase.co/*, https://quickdef.app/*
Screenshots
About
QuickDef is an AI-powered dictionary built for English learners who read PDFs and web pages. Most dictionary extensions fail inside PDFs. QuickDef works where others don’t. Just double-click any word in a PDF or on a web page to see a clear, learner-friendly meaning instantly. No tab switching. No complex dictionary language. No broken reading flow. QuickDef focuses on understanding, not memorizing definitions. Key features: • Works inside PDFs and regular web pages • AI-generated simple definitions for English learners • Context-aware meaning selection • Double-click any word for instant explanation • Clean, distraction-free popup (Kindle-style) • Optional full dictionary definition • Save words and review them later QuickDef is designed for non-native English speakers who want to read with confidence, especially academic papers, articles, and long PDFs. AI usage: QuickDef uses AI to generate simplified, learner-friendly explanations. Only the selected word and limited surrounding context are processed. Free to start. No setup required.
Technical
- Version
- 1.1.3
- Manifest
- V3
- Size
- 564KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- ioepkncpchchdiookgpkckafhfjcehke
- Developer ID
- ueda34538c14a151b67cb0d82a50aa1a7
- Developer Email
- [email protected]
- Created
- Feb 15, 2026
- Last Updated (Store)
- May 26, 2026
- Last Scraped
- Jun 6, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- https://quickdef.inpresencelab.com/privacy
Similar extensions
Alternatives to QuickDef – AI Dictionary for PDFs & English Learners, ranked by description similarity.
Quick Define - Instant Word Meanings
Hold Ctrl and hover over any word to instantly see its definition. Supports on all websites.
8
Quick Dictionary
Double-click any word to get instant definitions - works on any website
13
★ 5.0
Quick Dictionary
A quick dictionary extension with full definitions.
41
★ 5.0
Quick Word Definition
Stop interrupting your reading. Get instant word definitions while reading - just right-click!
160
★ 4.2
DefineX - Instant Definitions, Right on the Page
Get instant word, phrase, and sentence definitions with just a double-click. No tab switching required.
15
Word Definer
Select any word on a webpage to see its definition in a small popup
12
Word Dictionary
A dictionary extension with search count tracking
2
FlashDict
Look up words and create Anki flashcards from any webpage
23
Data sourced from the Chrome Web Store · last verified Jun 6, 2026.