Math Gambling

Join a volunteer computing search for three integers whose cubes add up to 114.

a reader that shows the current paragraph in the library

Pascal’s Pager

Point any webhook at a private URL.

Tech Event Bingo

Generate your bingo card of things that might happen in tech this year.

Notebook.link

A fully interactive, scalable, and language-agnostic computing environment that operates entirely in your browser.

GET Together

A public social network that handles all posting activity through HTTP GET requests

A social network for people who want to experiment directly with HTTP behavior, where GET requests alone can create public posts and replies, add hearts, delete posts, and retrieve a JSON feed.

rocketsender

Rocket Sender is a WhatsApp sender extension for WhatsApp Web.

DROP

Paste your site or a competitor’s.

TideGlass

A calm second screen for focused work.

dmcn.dev

DMCNP is an open protocol for end-to-end-encrypted mail, where the address is a keypair instead of a name a server vouches for.

Ptree

Explore the tree of life and ecological relationships across multiple scientific classification systems

Users comparing ancestry, traits, and ecological connections among species and biological groups can move between classification and phylogenetic resources to examine scientific evidence.

An accessible introduction to quantum computing for the average reader

A short guide that helps readers without specialist computer science or quantum physics knowledge gain a broad, balanced understanding of quantum computing theory, hardware, and applications.

Pen

A writing tool for editing documents through conversation and selectively merging version changes

A tool for writers who want to create documents by describing their intent instead of editing every sentence, then compare others' versions and merge only the changes they want.

SimpleW

A lightweight .NET web server with an embeddable core and powerful addons.

Pipnote.app

Write something short.

Raven

A secret messaging tool that hides encrypted messages in ordinary text

A tool for people who want to send encrypted secret messages concealed within text that appears ordinary.

StimuStop

StimuStop helps you quit smoking, vaping, or nicotine pouches — a free streak tracker with money saved, science-backed milestones, and a daily journal.

An emulator that brings the forgotten HP Jornada 545 back to life

An emulator for users who want to experience the environment and older software of the HP Jornada 545, an SH3-based Pocket PC released around 2000.

Explore the fun side of the personal web

Reactor Atlas

Reactor Atlas is an interactive nuclear power plant map of the world: every reactor since 1954, technical sheets, 3D plants and live signals updated hourly.

Open-Source eInk Bike Computer

Open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO, with offline maps, GPX routes, FIT recording and Bluetooth sensors.