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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7-day rating change
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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This is my first comment :) The extension is the thing which I've searched exactly! I think it's underrated. Suggestions: + Please! If available , make it offline. + There is only one custom section.You can multiply. + Icon/favicon of custom should change based on added url/website. + Default websites(duck,bing .etc) should be editable(For example change url etc.).
just WOW ! thank you for such a useful extension.
Was trying to find a dictionary extension because I'm tired of having to look up words on google. Tried grammarly and the SOB's want me to make an account. YIKES!!!! Instead, I searched up on google "dictionary extension reddit" and found that the person who created this extension was sharing it on a chrome subreddit. Tried it out and the extension works beautifully. Super cool to have all of the different resources like bing images and google searches as well, all instantly. Thanks DeLaRoka!
Simply the best!
Very good extension! I have a suggestion regarding the Wikipedia UI, which appears a bit outdated.
Wonderful extension. Exactly what I was looking for and more. The customisation capability is amazing too. With the Google Translate source, it pretty much serves as an two-in-one alternative for a seperate dictionary and translation app.
Thank you for creating and sharing this productive extension.
Like Lookupper, but for browser
Гугл не всегда корректно делает перевод на рус. язык, желательно добавить перевод от Яндекс. Дополнение к браузеру великолепное
This extension is good but it is not work on some website such as Microsoft's Bing Chat AI in Edge browser.