Tech
1,683 interactive pages · most loved first · page 13 of 71· Tonble one of these
Cover Your Tracks
An EFF tool that tests your browser and shows how trackers see you, including how unique your browser fingerprint is amo…
CrankGPT
A human-powered, fully local AI toy where you crank a handle to generate the electricity that runs an offline language m…
Crazierl
An Erlang operating system booted inside an in-browser emulator, with a live terminal. Share a hashtag link to join frie…
CreateApp
A browser-based generator for webpack, Parcel, and Snowpack boilerplate, letting you pick options in a form and get a ta…
Creating a QR Code Step by Step
An interactive demo that visualizes every stage of building a QR code, from data encoding and error correction to maskin…
Creature Creator
A simulation where you design creatures and watch them evolve, using a genetic algorithm and neural networks to learn ho…
Critter Camera
A browser-based motion detector that watches your webcam and captures images whenever something moves, with nothing to i…
Crontab Guru
A simple editor that translates cron schedule expressions into plain English as you type, saving sysadmins from scheduli…
Croppola
A free online photo cropping tool that analyzes your picture and suggests the best crop, handy for framing portraits and…
CrowdView
A search engine built for forums and discussion sites, surfacing real conversations and community advice instead of SEO-…
Cruncher
A calculating notepad where every number on screen can be scrubbed by dragging, with dependent values and charts updatin…
Crunchzilla
Interactive coding tutorials with playful characters, including Code Monster for kids and Code Maven for teens, where yo…
Cryptii
A modular, visual playground for chaining together classical ciphers and encodings step by step, making it easy to see e…
CryptoHack
A gamified platform teaching modern cryptography through capture-the-flag style challenges, popular with security and cr…
CrypTool
An interactive cryptology learning site where you play with ciphers online, work through lessons, and solve puzzles to b…
CryptPad
An end-to-end encrypted collaborative office suite for documents, spreadsheets, and whiteboards that nobody but the invi…
CSRankings
A metrics-based ranking of computer science departments and faculty by publication activity at top venues, filterable by…
CSS Background Patterns
A free generator with over 50 pure CSS background patterns, including stripes, dots, grids, and textures, each with copy…
CSS Box Shadow Examples
A gallery of over 120 CSS box-shadow examples sorted by style, from Stripe and Material to neumorphism and neubrutalism,…
CSS Buttons Generator
A browser tool that generates shiny CSS3 buttons, letting you tweak colors and styling visually and copy the finished co…
CSS Flexbox Playground
An interactive playground for experimenting with flex properties in real time and learning CSS layout through hands-on p…
CSS FPS
A walkable first-person 3D scene built from nothing but HTML elements and CSS transforms, with layered textures and ligh…
CSS Generator
A free CSS generator with live preview for box shadows, gradients, border radius, transforms, and filters, which gives y…
CSS Gradient
A visual editor for building linear, radial, and conic CSS gradients with live sliders, then copying the ready-made code…
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