DuoBook
After I posted DuoBook on HN a few months ago, a CEO from Denmark gave me very honest feedback: “Nice product, but coming up with a story is a mental effort. I’d rather read real news as short stories.” That stuck with me, so I built URL grounding for stories. Paste any URL → DuoBook turns it into a short, level-adjusted story in seconds. Currently works best with: - Wikipedia - Non-paywalled news/articles - YouTube videos with captions I also implemented most of the feedback I got from HN last time. Would love more feedback on what feels useful vs gimmicky.
DuoBook launched on May 27, 2025 with 1 votes. The site was still online in September 2026, 1 year on.
What it does
Read engaging bilingual tales created just for YOU. Parallel text, tap words for instant translations, and hear native pronunciation and more! Choose from 100+ languages and any difficulty level! 📚✨
Read anything on the internet bilingually with DuoBook. Turn any article, story, or topic into an interactive bilingual reading experience with parallel text and vocabulary tracking.
In the maker’s words, at launch
Hi all, I made a simple daily practice game the logic is pretty simple. You select the words you think are composing the translated sentence, it shows whether the word is at the right place or not for that try. You could change the language (also swap) and the level as well. Enjoy!
Does a similar job
all alternatives →- DSDuolingo-style exercises but with real-world content like the news2025 · app.fluentsubs.com · ▲472
I've been working on a little side project that combines Duolingo-like listening comprehension exercises with real content . Every video is transcribed to get much better transcripts than the closed captions. I filter on high quality transcripts, and afterwards a LLM selects only plausible segments for the exercises. This seems to work well for quality control and seems to be reliable enough for these short exercises. Would love your thoughts!
Learn German with Short Stories2023 · webbu.app · ▲180Hi HN! I have been working on a webapp to keep learning German and today I want to share the first version. In the past, I have used books with "Short stories" to learn the language and I always wanted more stories so I thought I could put that into an app. Short stories are nice because the learner can attempt to understand words from the context of the text and it feels like less effort than a traditional language app. Additionally, the app format allows for practice questions at the end and you can use LLMs to check whether the answers are correct; so the users can check themselves. So…

TL;DR2025 · tl-dr.tv · ▲199I love Hacker News but I rarely have time to read full articles / comments, so I built a simple site to summarize the top posts & comments to make it easier to get a big picture. A few implementation details: - It pulls the top stories from the HN Firebase API (`/v0/topstories`) - Filters stories with >200 points - Uses Claude Sonnet for post + comment summaries - Tries to capture the sentiment of the comments (still working on improving this) - Refreshes both posts + summaries hourly It has already helped me I hope it helps you! Please let me know if you have any feedback --…

Personalized Duolingo (kind of) for vocabulary building2025 · github.com · ▲161Hi! Wanted to share the project I really wanted to have. TLDR; this app lets you create your own list of words and you get a Duolingo-like experience (kind of, still needs a lot of features) practicing those words in their context. My English is not the best but not the worst either. But I realized I can't boost it up after a certain level! In my belief, in order to truly learn a language, you need to be exposed to that language often. Vocabulary is the key factor here if you really want to improve in any language. My experience is that when I read a book to improve my English vocabulary, I…
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