
HN.watch shows the Hacker News front page with a short video explainer for every story, so you can catch up on what is being discussed without reading every article. It syncs with Hacker News continuously; click a title to watch the explainer, or open the article and comments as usual.

Following an ongoing news story can be difficult because important developments are spread across dozens of headlines and multiple days. If you miss a few days, it can be hard to understand what happened, what changed, and how the latest development connects to the bigger story. NewsSphere groups related coverage into evolving stories and tracks how those stories develop over time. Instead of simply showing the latest headline, it helps users reconstruct the story and quickly understand what they missed. The initial audience is people who actively follow news, particularly crypto, politics, technology, and other fast-moving topics where a single event can generate many headlines over several days. I want to learn how often people experience this “I lost the thread” problem, which types of stories they most want to catch up on, and whether people would return to a product specifically to understand what changed in stories they follow

An app which allows you to select a route based on a set of filters. Built by people who enjoy driving, for those who drive. Built for whom the drive is the point, not the arrival. Weekend riders looking for a road they haven't done, people new to a city wanting the one their local club already knows, riders who want a record of what they've driven. Built as a PWA, can be installed on your phone directly from your browser.

Dental Scope is a free interactive 3D model of dental anatomy for students and educators. It covers all 32 permanent teeth with FDI, Universal and Palmer numbering, from enamel and dentin to root canals, plus the jaws, joints, nerves, arteries and muscles of mastication. You can toggle layers, search structures, and switch between front, side, top and occlusal views, with fixed or free orbit around the model.

Scissor is a free graphics editor for vector and pixel work that runs entirely in the browser, with no install, no account and no upload of your files. It has the tools designers expect: selection, pen, type, shapes, paintbrush, gradients, transforms, layers, multiple boards and grids, with keyboard shortcuts and a command palette. The interface is available in more than a dozen languages.

Ledge is a Markdown notes app where the code blocks run. Write a shell command, code, a SQL query or an AI prompt in a note, run it in place, and the output streams in right beneath it, so your notes double as working runbooks. Notes live in workspaces with profiles for keys and database URLs, which makes it handy for API scratchpads, weekly checks and operations notes. It is free and open source, for Mac, Linux, Windows, iPhone and Android.

Tiny AI Arena pits AI models against each other in game matches and keeps an Elo leaderboard of the results, with wins, kills, damage and average placing for each model. Every finished match has a replay you can watch, so you can see how different models actually play rather than just reading benchmark scores.