Tech
1,683 interactive pages · most loved first · page 11 of 71· Tonble one of these
Cleanup.pictures
An AI-powered eraser that removes unwanted people, objects, text, or watermarks from a photo just by brushing over them,…
ClientPDF
A PDF studio that merges, compresses, and secures documents entirely in your browser, with no login, no server, and no u…
Clip Fish
An open-source, no-login WebRTC tool for sending text, links and files between devices: scan a code and send, with nothi…
Clock Simulator
A free fullscreen analog clock with no ads or tracking, built for display, OBS embeds and timezone dashboards, and it wo…
ClojureScript Koans
A browser-based set of koans that teach ClojureScript through failing tests you fix one by one, nudging you along a path…
Clone Zone
A web cloning tool that lets you edit the text and images of any website, then share the altered page as a joke, a prank…
Cloud TTS
A free text-to-speech tool where you paste text and hear it read in a natural voice, with 140 languages and karaoke-styl…
CloudConvert
A cloud-based file conversion service supporting over two hundred formats, including documents, ebooks, spreadsheets, an…
Cloudflare Radar
A live dashboard of global internet trends, showing traffic, outages, attacks, bot activity and AI crawler behavior acro…
CloudSkew
An online editor for flowcharts and architecture diagrams with icon libraries for AWS, Azure, GCP, Kubernetes, and OCI,…
CMD Challenge
Solve one-line shell challenges in a built-in terminal, from basic file tricks to advanced pipelines, with instant feedb…
Code Beautify
A large set of free online developer tools, including beautifiers, formatters, minifiers, validators, viewers, and conve…
Code Your Own Flappy Bird
A Code.org tutorial level where you write blocks of code to build your own Flappy Bird game, a gentle way to learn progr…
Codeframe
An online pastebin-style playground for building websites with HTML, CSS, and JavaScript, where you can write and share…
Cold War
A browser simulation platform of eerie vector scenes - missiles, defenses and cities - inspired by Cold War war-game scr…
CollabVM
A web app that lets you control a shared virtual machine alongside strangers, where everyone's mouse and keyboard compet…
Collision Detection
An online book with live canvas demos that teaches how objects collide in games and simulations, from points and circles…
Color Designer Gradient Generator
A gradient generator that blends one color into another and shows the many in-between shades, ready to copy into a desig…
Color Journey
A 3D explorer for all 16,777,216 RGB colors, letting you fly through the color space and discover how every shade relate…
Color Orbs
A generative art piece by Danny King built from shifting color orbs, one of the code-made artworks in his online portfol…
Color Palette Generator
A tool that builds a color palette from any photo: paste an image URL and it extracts a matching color scheme you can us…
Color Palette Pro
A synthesizer for color: a playful palette generator with sliders and a write-up on why most color palette tools disappo…
Color Picker
A clean, open source color picker that converts between OKLCH, HWB, HSL, HSV and RGB with live sliders and explanations…
Colorbook
A set of color tools that converts a hex value to other formats such as CMYK, suggests how to use it, and helps you buil…
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