Explore product momentum and recurring customer pain points.

Product Feed — Continuously tracks products gaining momentum through rising attention, traffic, or revenue.

Opportunity Feed — Monitors the problems, needs, and pain points that recur most often across communities.

102 published cardsPage 5 of 9

  • Listen to Buttcoin

    Product signal · 2026-08-08

    0

    What it does

    A web toy that tracks every Buttcoin ($BUTT) transaction and draws a fart bubble on screen while playing a fart sound for each transaction, reviving a 2013 community site originally built on Mt. Gox Bitcoin data.

    Who it’s for

    Buttcoin community members and crypto enthusiasts on desktop PCs with speakers.

    Why it entered the Feed

    The frozen signal is a tweet from the official ButtCoin account describing a concrete, working revival of the community's 2013 'Listen to Buttcoin' site, including exactly what it does (fart bubble and sound per transaction) and a live link for users.

    Original source ↗

    Keyword suggestions

    ButtcoinButtcoin transaction visualizercrypto fart sound site
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  • OpenValve

    Product signal · 2026-08-09

    0

    What it does

    An open-source, 3D-printable automatic watering valve that measures soil moisture and opens or closes a motor-driven pinch valve to water plants only when the soil becomes dry, working with low-pressure gravity-fed sources (e.g., rain barrels) and pressurized systems up to 4 bar.

    Who it’s for

    Gardeners and hobbyists watering balconies, garden beds, raised beds, small greenhouses, community gardens, and rain-barrel systems, plus makers who want a repairable, modifiable open-source irrigation controller.

    Why it entered the Feed

    Frozen Reddit SideProject signal (score 451, 76 comments) describes a concrete, deployed open-source product with a distinct pinch-valve mechanism and an identity independently confirmed via official GitHub, Hackaday, and assembly-kit store pages.

    Official website ↗Official pricing ↗Original source ↗

    Keyword suggestions

    OpenValveautomatic plant wateringsoil moisture irrigation
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  • NotBRB

    Product signal · 2026-08-09

    0

    What it does

    Unofficial browser-based rebuild of MSN Messenger for real-time chat with friends, including working nudges, familiar sounds, and animated winks.

    Who it’s for

    People nostalgic for MSN Messenger who want to chat with friends in a retro browser messenger.

    Why it entered the Feed

    Frozen signals admitted a Reddit SideProject post showcasing a working browser recreation of MSN Messenger with real-time chat, nudges, sounds, and winks, explicitly marked as an unofficial fan project.

    Original source ↗

    Keyword suggestions

    NotBRBMSN messenger nostalgiabrowser chat
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  • PrintM

    Product signal · 2026-08-09

    0

    What it does

    Free browser-based map poster maker that turns any place on Earth into print-ready map art, with 22 styles, custom colors, 3D terrain, GPX route maps, country and city poster shapes, on-the-fly contour lines, a 3D-printable STL, and rotating MP4 video of the map (PNG up to 600 dpi).

    Who it’s for

    People who want map art posters without paying $40-60 per download or forcing signup: travelers, runners and hikers with GPX routes, and makers wanting 3D-printable map models.

    Why it entered the Feed

    Frozen signal admitted it as a concrete product: a builder-launched free tool with a clear value proposition versus paid map-poster sites, a specific feature set (3D terrain, GPX routes, STL, rotating video), and a live product URL (printm.app).

    Original source ↗

    Keyword suggestions

    printmmap poster maker3d map poster
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  • Printme.money

    Product signal · 2026-08-09

    0

    What it does

    A browser-based collection of playful 'money toys' that visualize personal finances, such as watching your salary print cent by cent, putting your face on a banknote, or watching your savings melt at Argentina inflation rates; no backend or sign-up required.

    Who it’s for

    Curious web users and side-project enthusiasts who enjoy free, simple interactive finance visualizations for fun.

    Why it entered the Feed

    Admitted as a concrete product from a Reddit SideProject launch post describing a working site (printme.money) with a clear function and active community engagement (score 149, 48 comments).

    Original source ↗

    Keyword suggestions

    printme.moneymoney toyssalary visualization
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  • Time Pencil

    Product signal · 2026-08-09

    0

    What it does

    A clock-first planner where you draw your day as colorful arcs around an analog clock face to block out events, meetings, and tasks; it syncs with your existing calendars (iOS Calendar/iCloud), requires no sign-in, and includes widgets plus Apple Watch and Wear OS companion apps.

    Who it’s for

    Visual thinkers and anyone fatigued by cluttered, system-heavy calendar apps who want a transient, glanceable way to sketch out their day.

    Why it entered the Feed

    The frozen Reddit signal confirmed Time Pencil as a concrete product: a planner that is 'just a clock,' where you draw your day as colorful arcs, with no sign-in, existing calendar sync, and a newly added Watch/Wear OS version with 24h mode and 30+ visual tweaks.

    Official website ↗Official pricing ↗Original source ↗

    Keyword suggestions

    Time Pencilvisual time blockingclock planner
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  • Matrix Rain 3D

    Product signal · 2026-08-09

    0

    What it does

    Browser-based interactive 3D simulation of the Matrix "code rain" that lets you fly freely through an endless ocean of falling code (WASD, SPACE, SHIFT and mouse on PC; on-screen touch instructions on mobile), with occasional "Ghosts" appearing as you explore.

    Who it’s for

    Matrix fans, web/tech hobbyists, and anyone wanting to explore an interactive 3D visualization directly in the browser.

    Why it entered the Feed

    Admitted on the strength of a concrete, working product: a r/SideProject Reddit post (283 upvotes, 52 comments) presenting a live 3D simulation with a clear URL, controls, and mobile support.

    Official website ↗Original source ↗

    Keyword suggestions

    matrix code rain3d matrix simulation
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  • Talk Through Time

    Product signal · 2026-08-09

    0

    What it does

    AI-powered web app that lets users learn history through interactive conversations with historical figures.

    Who it’s for

    Learners, educators, and history enthusiasts

    Why it entered the Feed

    Reddit SideProject signal described a site for learning history by talking to historical figures; web search resolved this to Talk Through Time, an AI platform offering conversations with over 100 historical figures.

    Official website ↗Original source ↗

    Keyword suggestions

    Talk Through Timechat with historical figureslearn history by talking to historical figures
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  • Manyplace

    Product signal · 2026-08-09

    0

    What it does

    Provides a peaceful virtual place (like a café or library) where people can work, study, or read alongside others, combining solo focus with the ambient presence of other users; available on web, desktop, and mobile.

    Who it’s for

    People who prefer to build, work, study, or read on their own but still appreciate being around like-minded others, such as remote workers, students, and creatives.

    Why it entered the Feed

    Admitted from a Reddit SideProject post introducing Manyplace as a free, always-open virtual café/library; the post documents the product's purpose, its move from macOS-only to web on any device, and its open, free access.

    Original source ↗

    Keyword suggestions

    Manyplacevirtual study caféonline body doubling
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  • Design to Cut

    Product signal · 2026-08-09

    0

    What it does

    Web-based furniture and kitchen design tool that produces cut-ready, downloadable designs and cutting lists users can bring to a cut-to-size shop to build the furniture themselves.

    Who it’s for

    DIY homeowners and builders designing kitchens or furniture who need ready-to-cut plans for cut-to-size shops.

    Why it entered the Feed

    Admitted from a Reddit SideProject post by the builder sharing a working public demo of the tool, with a clear, concrete use case (cut-ready furniture/kitchen designs for cut-to-size shops) and 14 comments at score 74.

    Original source ↗

    Keyword suggestions

    Design to Cutkitchen design toolcut to size furniture plans
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  • Solar Bear

    Product signal · 2026-08-09

    0

    What it does

    An open-source, home-built solar-powered recumbent trike that uses solar panels as its body, produces its own electricity (up to 520W solar, 256Wh battery), offers assisted pedaling with a 250W motor up to 25 km/h, and can power a home when stationary.

    Who it’s for

    DIY makers, hobbyists, engineers, and urban commuters who want to build their own solar/electric personal vehicle at home.

    Why it entered the Feed

    Admitted as a concrete open-source product: the Reddit build post drew very high engagement (1,374 score, 234 comments) and the project is published with open CAD files, full technical specs, and a materials list on GitHub.

    Official website ↗Original source ↗

    Keyword suggestions

    Solar Bearsolar powered trikeDIY solar vehicle
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  • Bento (Bento/Slides)

    Product signal · 2026-08-09

    0

    What it does

    Creates, edits, presents, and shares slide decks that live entirely inside one self-contained HTML file, with built-in charts, animations, speaker view, PDF export, and E2EE live collaboration, all running offline in any modern browser with no install or account.

    Who it’s for

    Individuals and teams making presentations - developers, founders, educators, and knowledge workers who want portable, local-first, offline decks that recipients can open and edit in a browser without PowerPoint or a cloud login.

    Why it entered the Feed

    Admitted from a top-ranked Show HN launch (~1k points, #1) presenting a concrete, working product: an MIT-licensed, open-source PowerPoint alternative distributed as a single ~560 KB HTML file with editor, viewer, and collab built in, confirmed by the official site bento.page.

    Original source ↗

    Keyword suggestions

    Bentosingle html slide deckpowerpoint alternative
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