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%
Cooling 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.
Users40KCurrent public install base
Rating4.8Store average score
Reviews389Public review volume
Manifest versionV3Extension platform version
7-day growth-10KNet users gained this week
7-day growth rate-20%Relative weekly velocity
Preview
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14日2026年7月20日
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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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Пользуюсь не один год. Очень удобная штука. Действительно полезное расширение. Рекомендую.
Amazing
Hervorragend, weitgehend so, wie es sein sollte: Sehr leicht zu aktivieren – die Auslöser lassen sich konfigurieren –, und man bekommt bei einzelnen Wörtern mehrere Bedeutungen angezeigt. Man kann direkt im Dialog aus mehreren Quellen wählen (darunter ist sinnigerweise auch eine Bildsuchmaschine). Man kann auch eine eigene Quelle konfigurieren, etwa, um weniger Daten an Google zu übermitteln. Hierfür bietet sich vor allem WordReference an, da es mit mehreren Sprachen umgehen kann.
Excellent extension, to this date I think the best I've ever used...Thanks
Самое топовое, удобное и быстрое расширение в качестве переводчика. Добавьте возможность смены темы со светлой на тёмную, в зависимости от того какая в винде
Great extension. One suggestion: Need MORE "Custom" Options.
Amazing, very useful for me for studying. Comfortable, time save, simple and outstanding definder Extension ever. Hope you add some free AI asking option to it.
Hi, thanks for a great extension, no more switching between search and document. I have some feedback for you: - Some sites are not working, I'm trying to use it on bookfusion.com (online epub reader) but it's not working so far, even by using context menu or hot key. Maybe because they are having custom actions on click? Tested on chrome and edge - Default hot key `Att + D` focuses omni bar, I have to switch to other. - Add hotkey to open Definer similar to clicking to extension icon. This helps in case popup is not working on some sites. One can press `Ctrl+C` then `hotkey` to lookup, less convenient than popup but a useful fallback option. Or even have option to use popup or top bar mode.
Отличное расширение. Только не понятно почему активируется не на всех страницах? На wikipedia работает, тут нет - https://www.everywritersresource.com/shortstories/the-last-leaf-by-ohenry/
When the double click works, its great but I am not sure why it only works 30% of the time for me. I have to keep going to the option page to disable/enable an option to use it.