Alternatives
Products that do what ReplayYouTube does
Infinite A-B looping & distraction-free YouTube player.
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Hi HN, I recently noticed a recurring visual artifact in the "Most Replayed" heatmap on the YouTube player. The highest peaks were always surrounded by two dips. I got curious about why they were there, so I decided to reverse engineer the feature to find out. This post documents the deep dive. It starts with a system design recreation, reverse engineering the rendering code, and ends with the mathematics. This is also my first attempt at writing an interactive article. I would love to hear your thoughts on the investigation and the format.
Jan 2026 · priyavr.at
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2013 · blynde.com
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2012 · jaipandya.github.com
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2013 · youfm.org
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Loop YouTube segment set. A&B points to replay what matters
May 2026 · ab-repeat.xtnkits.com
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2023 · videorecap.viewodyssey.com
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Hi HN, I'm one of the founders of s2.dev. RePlaya (https://github.com/s2-streamstore/replaya) is a self-hosted browser session replay tool using rrweb (https://github.com/rrweb-io/rrweb). It occurred to me that a durable stream per session would be a much neater architectural foundation for much of what you'd want from such a tool. As a unique feature, it also made live tailing straightforward because the player can read from the same stream the recorder is appending to. The alternative architecture is likely an ingest firehose which is then indexed,…
Jun 2026 · github.com
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2012 · cloudplay.fm
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2013 · demiba.com
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Initially, I was interested in using YouTube videos to learn languages using the simple shadowing technique. It sounds fancy, but it's simply listening and repeating. However, I found it pretty inconvenient to use the vanilla YouTube player to replay video parts. Especially when I needed to do it several times. Later I figured out that it's pretty handy to also practice instruments, given how much material is in there. Not just for mimicking songs but also for better following tutorials. So the idea is simple, you can save clips you want to practice to loop as many times as you want and come…
2024 · loopingtube.com
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I built Yourabbit.com — a site that curates hand-picked YouTube rabbit holes grouped by themes like quirky psychology, obscure tech, weird facts, and binge-worthy oddities. It’s not driven by the YouTube algorithm — every collection is themed and curated manually (for now), with a backend I’m automating to fetch and organize new rabbit holes daily. Built as a hybrid Astro + Next.js project, optimized for static generation and speed. I’m also pairing videos with custom summaries and commentary (using AI), and would love feedback from the HN crowd on: Content model (too wide? not specific…
2025 · yourabbit.com
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