Tech
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Constraint Systems
A collection of experimental, keyboard-driven web apps that offer alternative interfaces for editing images and text, ea…
Context Free Art
A free program that turns short written grammars into intricate images with millions of shapes, plus a large gallery of…
Continue? Y/N
A 60-second browser game where an AI coding agent keeps asking for approval and you must decide fast which commands are…
Conversao
A simple online tool that converts a value in any unit to all the other units at once, covering lengths, weights, volume…
Convert to it
A universal file converter that runs in the browser and turns almost any file into almost any other format, handling odd…
Converting a $20 4G Wireless Hotspot into a Texting Device
A hacker's write-up on turning a $20 4G wireless hotspot into a dedicated texting device, with the hardware tricks and t…
Convertio
A universal online file converter that switches between hundreds of document, image, audio, and video formats directly i…
ConvNetJS
A JavaScript library with live demos that train neural networks right in your browser, including image classifiers, regr…
Cooking For Engineers
A classic food site by Michael Chu that presents recipes as compact engineering-style diagrams alongside equipment analy…
Cooklang
A plain-text markup language for recipes, with a spec, examples, and tools that turn written recipes into ingredient lis…
Cool Fonts
A text generator that turns whatever you type into dozens of fancy Unicode font styles, ready to copy and paste into bio…
CoordinateMapper
A free tool that converts coordinates between latitude/longitude, UTM, MGRS, and UK grid references, plots them on a map…
CopyChar
A simple web app for finding special characters such as currency symbols, arrows, and math signs, then copying them to y…
Core77
An industrial design magazine and resource running since 1995, featuring product design news, projects, competitions, an…
CoRecursive
Adam Gordon Bell's podcast collecting the extraordinary human stories behind software, from rewriting SQLite to survivin…
Correct Horse Battery Staple
An xkcd-style password generator that strings random common words into long, memorable passphrases right in your browser…
Corrupt-a-File
A joke tool that scrambles an uploaded document into an unopenable corrupted file, built around the classic excuse that…
Cosmic Particles
An interactive WebGL simulator with several cosmic modes, where thousands of glowing particles respond to your mouse and…
Could We Stop Yellowstone from Erupting?
A back-of-the-envelope engineering look at whether drilling heat out of the Yellowstone supervolcano could prevent an er…
Countdowns
A site for making beautiful countdown timers to any date or event and sharing them with friends, from birthdays and trip…
Counting People with Machine Learning
A project write-up on counting foot traffic from IP webcam feeds with machine learning, walking through the detection ap…
Cover Your Tracks
The EFF's browser test that shows how uniquely trackers can fingerprint you, with a clear breakdown of each signal your…
Cover Your Tracks
An EFF tool that tests your browser and shows how trackers see you, including how unique your browser fingerprint is amo…
Coverr
A curated library of free cinematic stock video clips that filmmakers and designers can browse and download without lice…
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