Click Define
Click Define is an open-source Firefox browser extension that displays the definition of a selected word after a double-click. It supports definitions in hundreds of languages and is intended for language learners and multilingual readers.
Overview
4 featuresClick Define sits in PulseGate's Browser DevTools & extensions category. It focuses on looking up word definitions across languages without manually opening a dictionary or translation service. It is built as an open-source project for language learners, multilingual readers, and Firefox users. Click Define is open source under the Open Source license. It ships for the web, embeddable surfaces, macOS, Windows, and Linux.
HalfToast builds and maintains Click Define, and it first shipped in 2026. Key capabilities include double-click lookup, word definitions, and multilingual support.
Summary written by a language model from the project’s public pages.
- Double-click lookup
- Word definitions
- Multilingual support
- Firefox extension
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
Frequently asked questions about Click Define
- What does Click Define do?
- Click Define focuses on looking up word definitions across languages without manually opening a dictionary or translation service. It is catalogued under Browser DevTools & extensions on PulseGate.
- Who should use Click Define?
- Click Define is an open-source project built for language learners, multilingual readers, and Firefox users.
- Does Click Define have a free plan?
- Yes — Click Define is open source under the Open Source license and free to use.
- What platforms does Click Define run on?
- Click Define runs on the web, embeddable surfaces, macOS, Windows, and Linux.
- Is Click Define still maintained?
- Unverified. Click Define has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
- What are alternatives to Click Define?
- Similar projects tracked by PulseGate include Click Dictionary, RightClickDefine, and Click dictionary.Click DictionaryRightClickDefineClick dictionary
- Who develops Click Define?
- Click Define is developed by HalfToast.
- When did Click Define launch?
- Click Define first shipped in 2026.
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