Today’s websites offer ways to explore a weather chart, read printed documents, practice chess awareness and make music. Each comes from a recent Show HN submission, with the original discussion linked for more context.
Collection window: October 15, 2026, 02:00 UTC through October 16, 2026, 02:00 UTC (October 14 at 7:00 p.m. through October 15 at 7:00 p.m. Pacific). The official Hacker News API confirms that all ten selected submissions fall within these 24 hours. Recent repeat domains and older-project reposts were excluded. Submission time does not establish a website’s first launch date. Some links introduce desktop software rather than a browser-only application; we reviewed public pages without completing full product trials.
1. Weatheristic: Read the weather as a continuous chart
Weatheristic places changing temperatures on a visual timeline with day and night bands, zooming and scrolling. The maker describes overlays for typical ranges, historical extremes and moon phases, alongside recent weather and forecasts. It suits readers who want to see a trend across several days rather than step through separate daily cards.
Before you try it: Historical values use modelled Open-Meteo reanalysis rather than direct weather-station readings. The maker notes that daily extremes can differ, so treat those comparisons as context rather than precise local records.
Visit website · Show HN discussion
2. Rad PDFs: Discover documents worth reading away from a screen
Rad PDFs is a community link site organized around PDF documents. Its familiar list-and-discussion layout shows document titles, source domains and file sizes; the initial selection includes technical talks and a company handbook. Readers who prefer printable material can browse a dedicated collection, while contributors can suggest PDFs for others to discuss.
Before you try it: The collection is small at the time of review. The maker encourages A4 or letter-sized documents, but linked files come from outside sources and are not automatically guaranteed to print cleanly.
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3. Luksmith: Open supported Linux drives from Finder
Luksmith is a Mac application for accessing ext2, ext3 and ext4 filesystems, including supported LUKS-encrypted drives. It uses Apple’s user-space filesystem framework rather than a kernel extension. Linux users moving files to an Apple Silicon Mac can inspect the format table before trying the free read-only workflow.
Before you try it: It requires macOS 26 or later on Apple Silicon and excludes configurations such as LVM. Writing requires a purchase; the developer warns that unplugging during writes can cause damage, so keep backups and eject properly.
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4. AlwaysGreen: Put availability checks beside a public status page
AlwaysGreen combines service monitoring with an incident timeline and public status page. Its website describes multi-region checks, failure thresholds and notification controls intended to reduce repetitive alerts. Independent developers can start with a few monitored services, while teams can evaluate custom domains and migration of components and incidents from Statuspage.
Before you try it: Check the specific plan: the free tier lists three monitors, five-minute checks and two regions. Faster checks, more regions and other capabilities vary by plan; we did not simulate an outage.
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5. Guess the LLM: Test your intuition about model writing styles
Guess the LLM turns model comparison into a guessing game. Several models answer the same question; the reader sees an answer and tries to identify its author. The opening screen lets players choose which models to include, making it suitable for a quick comparison between a few familiar assistants.
Before you try it: This is an informal recognition game rather than a controlled capability benchmark. A correct guess can reflect wording or formatting habits, and says little about which model would perform best on your own work.
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6. Drift: Explore a hot-air balloon simulation
Drift is a browser-based hot-air balloon simulator. Its visible instrument panel includes altitude, climb rate, ground speed, track, crown temperature and remaining fuel, with a burn control and an altitude target. Curious players can explore a vehicle whose movement depends on more than pointing toward a destination.
Before you try it: We inspected the interface without completing a flight. Treat it as a simulation to explore, not flight instruction; the visible instruments alone do not establish how closely its physics reproduce a real balloon.
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7. Untangle Unknots: Look at a knot from several representations
Untangle Unknots provides an interactive browser workspace with two- and three-dimensional views, curve and stick representations, and controls for drawing or opening a knot. The interface exposes crossing counts and other mathematical quantities alongside an untangling planner. It is an interesting starting point for students and visual thinkers exploring how a tangled curve can be represented.
Before you try it: The planner was still showing its planning state during inspection, so we did not confirm a completed untangling result. Use the visual output alongside mathematical reasoning rather than treating an animation as a proof.
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8. ƜackDown: Keep Markdown reading separate from editing
ƜackDown is a native Windows Markdown viewer with themes, keyboard navigation and automatic reload when a file changes. Its website describes direct Windows graphics rendering, embedded fonts and support for common extensions such as tables, task lists and footnotes. Writers can keep their existing editor and use the viewer as a separate reading window.
Before you try it: It targets 64-bit Windows 10 and 11, not macOS or Linux. HTML is not rendered, Mermaid remains code, and more complex mathematical notation can remain source text. We did not install or benchmark it.
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9. Takes Takes: Find every attack on the chessboard
Takes Takes asks players to identify attacks for both White and Black instead of finding one best move. The interface supports dragging from an attacker to a target or tapping the pair, and offers Practice and Rush modes. Chess learners can use the different task to focus on board awareness and piece relationships.
Before you try it: This narrower exercise does not replace calculation, positional study or a full game. The site credits positions from the Lichess puzzle database; we inspected the instructions without measuring any training benefit.
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10. Jamfetti: Make a small musical experiment with gestures
Jamfetti combines browser-generated music with changing visuals. Its information panel explains tapping to play notes, dragging to create melodies and mixing the music and visual presentation. The interface includes music and visualizer selectors, making it approachable for someone who wants a playful sound experiment without first learning a production application.
Before you try it: We reviewed the controls and explanation without evaluating the sound output. The site says optional Google Analytics is enabled by default and provides an off switch in its information panel; it says musical inputs are not sent to analytics.
Visit website · Show HN discussion
Choose a useful starting point
Use the website to understand the workflow and the original discussion to learn what the maker is asking people to try. For an installed product, check compatibility first; for a browser tool, start with a small, non-sensitive example.
Today’s domain list
Load these ten website links into OpenURL, review the queue, and click Open batch when ready. Loading replaces the tool’s current list; it does not open external websites automatically.
weatheristic.com radpdfs.pages.dev luksmith.app alwaysgreen.tech guessthellm.com hakancn.com zkingston.com bezkom.github.io www.takestakes.com jamfetti.boondoggle.studio
Load these 10 websites in OpenURL
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