Free
Pop-up dictionary extension: hover over Japanese text in your browser to see definitions, and add words to Anki in one click. Uses dictionary files you install.
ChromeFirefox
Visit ↗4 10ten Reader (formerly Rikaichamp) alternatives
Other browser extensions tools, in our recommended order. About 10ten Reader (formerly Rikaichamp) →
Free
Free, open-source browser player and extension for watching Japanese video with subtitles, including on streaming sites, and mining sentences from them into Anki.
ChromeFirefoxWeb
Visit ↗Free + paid options
Browser extension that shows dual subtitles on Netflix and YouTube, with pop-up translations and tools to save words while you watch.
ChromeEdge
Visit ↗Free
Free Japanese-English dictionary file for Yomitan, built from JMdict with cleaner layouts and extra notes. One of the most common first dictionaries to install in Yomitan.
Yomitan
Visit ↗