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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+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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Sources Request: Urban Dictionary (for all my slangs) and Oxford Dictionary. Maybe something Bing?
NIce Work.
I love this! Old review: Amazing extension, I absolutely love it except for the fact that it doesn't show the IPA on the google dictionary tab. I still have to google "define word" if I want to see the IPA and more often than not, if I don't know a word than I don't know how to read it without the IPA either. Please consider adding it. Thanks!
Not only is this extension extremely useful, it is also very elegant and minimalistic, without compromising its core functionality. It has clearly been well thought through. It is aesthetically pleasing and has many settings you can tweak to your heart's desire. Surprised to say, I would be happy to pay for this extension. Thanks to the author!
Love the extension. Wonder if it is possible to add google translate into the sources.
can you add the feature that the text could be translated to Chinese, or let users can add dictionary source by themselves. thx!
Could you make a setting to change the size of the popup? Google box is a bit small now, and sometimes you have to scroll two or three times to see the important facts, like IMDB score. It's not easy for me to use CSS since I'm not skilled at it.
amazing extension, it perfectly replaces google dictionary and adds Wikipedia support too! some feature suggestions would be to increase the available dictionaries and allow user to customise viewing of synonyms, definitions, etc.
I hope we users can add custom content sources (especially dictionaries' APIs) ourselves like what we do to adjust the settings for search engines on web browsers.