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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perfect and flawless
Confusing settings, the wordings and the terms. Unfriendly triggers. Hotkeys don't work. (Even a small thing like Ctrl+Shift+1 shown as Ctrl+Shift+! makes just a bad impression.) Browser level pop-up isn't prompted with highlighted text, I have to type it manually each time. Base language cannot be opted out from automatic translation. Heavy bloated but the essential features aren't there.
Excellent Extention.
Sebbene la descrizione (parzialmente) e il titolo dell'estensione sono in italiano, la lingua italiana nelle opzioni della scelta della lingua non è disponibile. Deludente. Although the description (partially) and the title of the extension are in Italian, the Italian language in the language selection options is not available. Disappointing.
Nice app, English is my second language so it really saves me a lot of time of definition looking when I am reading long (900 to 2000 pages at this point of the game) textbooks and this product, this ingenuity is one of the few ones that are actually providing this kind of service with clean designs and nice user interface. BUT, but, somehow the shortcuts for opening this page just wont work. Even when I switch the shortcuts to other keyboard inputs. The shortcuts only work when I read a pdf in the integrated pdf reader, and it won't work in other occasions, such as texts/doubleclicks/keyboard inputs in Chrome. I really hope you can fix this because the usage will be much much more efficient:)
May you find eternal peace and love. From first glance I thought your extension was created by a company, not an individual. It was only when I found your reddit post that I gave your extension a shot. I'm so glad I did. It solved literally all my problems (of today.) If I wasn't a student, I'd donate, and I really implore others to do the same.
Oh my GOD, you made THE DICTIONARY. I love your extension. I love the fact that you put lots of options for customization. I love that you guys knew what people needed and tend to build it. I cannot emphasize on me gratefulness. Writing a review was the least I could do. I'm going to introduce your extension in my blog soon. You absolutely ROCK.
Absolutely Perfect! Took forever to find a descent, double/right click - text to speech. This extension went far beyond what I expected. No more opening separate tabs. Double click, for speech, definition, web search and more, all within the pop-up bubble. How is this not advertised more? Best extension of it's kind by far. Thank you to the developers.
way better than the google dictionary extension
Nice, simple to use, awesome. Wished more people knew about this