Cool Tech

A global showcase where photographers share their single finest shot — and the community decides what rises to the top. Every photographer gets one upload per day. No galleries, no portfolios — just your best frame. This keeps the grid competitive and the quality high. Two feeds, one grid. Top […]

One color a day, told as it ought to be told: with its provenance, its chemistry, and the people who paid for it in poison. Every pigment in this catalogue has a paper trail. Where it was first ground, in whose workshop, on whose canvas it dried, when it was […]

Power your own hotspot to share educational materials, videos and apps in small groups or classrooms. No internet required. Butter Box broadcasts its own WiFi network. Once you join, you can install Butter, get apps, join a public chatroom, or make your own private one to share with friends. Butter […]

Welcome to Stellarium Web, an online planetarium running in your web browser based on the open source Stellarium Web Engine project. Please report any bugs or ask questions on www.stellarium-labs.com or on our Github page. This web version of Stellarium is a 2-persons project: Fabien Chereau the original creator of […]

You cannot hide! Experience all the personal information any web page can learn about you, without even needing a cookie. open source from Kubrr Studio https://github.com/Kuberwastaken/cookie h/t https://fosstodon.org/@RockyC/117059376370160807

A sestet is either a 6-line poem or a 6-line stanza of a larger poem. Sestetle mashes sestets with Wordle, generating random poems using the primary constraint of Wordle, which is that each word is five letters long. The project is inspired by the occasionally meaningful list of wrong answers […]

Takes the URL to a Mastodon toot, and converts the thread (all children by the same author) to a Markdown blogpost. It also downloads all included media files, and their alt texts. h/t https://mastodon.acm.org/@mxp/117044159885158176

Just For Fun is a place to browse creative coding projects. It's created and curated by @nealagarwal.

find out if it’s worth going out to look at the night sky. a project of Terry Godier. Dark Hours is built on open data and published science.bb h/t https://indieweb.social/@tg/117022764569677489

Everyone has shared the frustration of waiting for an elevator that never seems to arrive. "I pressed the button, why isn't it coming?" you ask. For something as commonplace as elevators, they are far more complex than meets the eye. Over the course of this article, we'll unravel the mysteries […]

brolly.sh is a minimalist, plain text weather forecasting site. Use it to view weather from around the world, with: – 7 day forecast – Previous day log (so you can confirm it definitely was cooler / hotter / wetter / drier yesterday!) – Hourly rain, wind, temperature, conditions – Hourly […]

You read the little label, nod, and move on. Name, date, and not much else. Nobody tells you what you’re looking at. This one does. Fifty famous paintings, one bit at a time.

Our library management service caters to libraries, schools, organizations, and home catalogs. Our online software lets you create multiple collections, catalog books, board games, movies, music, and video games, create tags, leave notes, import/export, share your collections and much more. We offer two different subscription options to best fit your […]

Glitchlet is a lightweight, browser-based creative-coding environment (HTML/CSS/JS only). Think "Glitch-lite" for shared hosting: students edit multi-file projects in the browser with instant preview, save locally via IndexedDB, and later publish to a class projects folder. Multi-file editor with a file tree and live preview Local-first persistence (autosave to IndexedDB) […]

Run HyperCard stacks directly on your modern Mac. No emulator required! Browse the Internet Archive's HyperCard collection and run stacks with one-click. Period-accurate typography. Sound, instruments, and MacinTalk speech synthesis. h/t https://darcynorman.net/links/2026-07-12-linkblog/ Cross-stack navigation.

Lifemap is a platform for interactively exploring the evolutionary relationships between all known species, offering detailed information on all clades and links to other resources. It serves as an educational and research tool, enhancing the understanding of biodiversity and the evolutionary history of life on Earth. As of 06/07/2026 Lifemap […]

When you follow an account on the Fediverse, that account's server informs your server every time it posts, so you see every post the account permits you to view. Mastodon (and some other Fediverse software) allows you to follow hashtags as well, but this works very differently. Because the network […]

We help you preserve your memories with pixel perfect privacy. Ente was born out of a need to preserve our personal memories. Mainstream services did not respect our privacy, and the rest lacked posterity. So we started building an open source company in 2020 – one that could outlive its […]

Discover thousands of free, easy-to-use calculators across science, finance, health, and more. Built to make your life easier. If you can’t find exactly what you’re looking for, try generating your own calculator using our calculator builder. H/t https://beige.party/@cobalt123/116829470808288409

slop·py·pas·ta  n.  Verbatim LLM output copy-pasted at someone, unread, unrefined, and unrequested. From slop (low-quality AI-generated content) + copypasta (text copied and pasted, often as a meme, without critical thought). It is considered rude because it asks the recipient to do work the sender did not bother to do themselves.