Shawn

Capecho - Capture new words with context & remember them with SRS

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Capture the new words you're reading with best-effort OCR, understand the word and its sentence with AI, and review them before they fade with FSRS.

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Shawn
Maker
πŸ“Œ

πŸ‘‹ Hi Product Hunt β€” I'm Shawn, the maker of Capecho.

I'm a native Chinese speaker and I read in English all day β€” but mostly in my IDE and terminal, in video subtitles, in PDFs and docs. The good vocab tools are browser extensions, so the moment I left the browser they couldn't help β€” and the words I met while coding or watching a talk just slipped away. Saving a word and remembering it are two different things, and where I read, I couldn't even do the saving.

So I used my Mac's on-device OCR. One shortcut reads the word β€” and the sentence around it β€” straight off any screen: dev tools, a video frame, a PDF, an image, non-selectable text. Then Capecho:

β€’ Understands it β€” a clear explanation, and when you want it, what the word means in your exact sentence.

β€’ Reviews it β€” spaced repetition (FSRS), each card fronted by your own sentence, so you remember the word the way you actually met it.

Capture, then echo. That's the name: Capecho.

A few principles, since I built this for myself first. The core loop is free β€” unlimited saved words, capture, the word explanation, your Word Book, spaced-repetition review, sync, and export. Pro covers the one part that genuinely costs per use: AI-powered in-context explanations β€” the word read inside your exact sentence, generated each time. As I add more compute-heavy features, those are where Pro will grow, but the everyday capture β†’ understand β†’ review loop stays free. It's private β€” OCR runs only when you press the shortcut, and you confirm every word before it saves. And it complements Anki, not replaces it β€” export to Anki or CSV anytime. Your words are yours.

Honest status: it's early. The Mac app β€” the capture half β€” is in beta. The Android and iOS review companion apps are already built and are currently going through the release process.

If you read outside the browser too β€” whether in a second language or even your native language β€” I'd love for you to try it and tell me what's missing. πŸ™

β€” Shawn

Farrukh Butt

Capturing words from IDEs, terminals, PDFs, and subtitles is a great angle. Most vocab tools assume everything happens in the browser, but that’s not how people actually read or learn day to day.

Shawn

@farrukh_butt1Β Exactly. That’s the gap I’m trying to solve with Capecho β€” people don’t only read in browsers. Words show up in IDEs, terminals, PDFs, subtitles, docs, and everywhere else, so capture should work wherever reading actually happens.