SelectON — selection popup. Copy & Search
Workflow & Planning
Customizable popup with actions on text selection
Users
7K
Rating
4.8
Reviews
122
7D Growth
0|0%
Stable signalUnknownHigh-risk permissions
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.
Users50KCurrent public install base
Rating4.8Store average score
Reviews389Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
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7 assetsDefiner - Word Translator, Ask AI, Dictionary Extension Media preview
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Start
4.78
Latest
4.78
7-day rating change
0.00
2026年7月12日2026年7月18日
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1-day growthFlat
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+10K+25%Technical snapshot
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Version1.16.2
ManifestV3
Size7.12MiB
Languages55Deutsch / English / English (Australia) +52
Published
Store updated
Last crawled
DeutschEnglishEnglish (Australia)English (United Kingdom)English (United States)FilipinoIndonesiaKiswahiliMelayuNederlandsTiếng ViệtTürkçe
Overview
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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.
🚀 Key Features
✅ 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
Reviews
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Store average score4.8Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.7Average computed only from synced review bodies below
Reviews with text299Synced review bodies
Total ratings / reviews389Chrome Web Store public rating/review count
Store average score: 4.8. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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best
Tiện hơn nhiều plugin khác! đáng thử/ giúp mình đọc ngoại ngữ dễ hơn
Honestly, it's the only extension for which I could wish for nothing more, since it satisfies all my needs.💫
Не работает, и при написании не проверяет, надо выделить текст, выбрать в контекстном меню значок расширения, потом вылезает окно, там найти словарь гугла и - он ничего не показвает ))
lifesaver plugin. would be better if it had a thesaurus
indispensable (adj.) absolutely necessary. "he made himself indispensable to the parish priest"
I was thinking of building one for myself as I never heard of this before, but this is fundamentally complete solution to problem I had with other extensions. Keep it up :)
fantastic in terms of convenience & customizability
My favorite extension! I have never used such a helpful extension; no need to switch tabs or go to dictionary. Will be amazing if these featues are added: 1. Word lookup History 2. Back navigation button 3. Set as default PDF viewer button in settings. Currently it shows sometimes.
Expertly made extension offered for free. Now I can easily connect to my AI API to explain any text I find unclear.