Interactive pages
5,235 interactive pages · most loved first · page 128 of 219· Tonble one of these
Online Compass
A virtual compass that shows direction in your browser, with a bubble level and speedometer built in, handy when you hav…
Online Conversion
A reference for converting just about anything to anything else, with thousands of units, millions of conversions, and c…
Online Cube
A free 3D Rubik's Cube in the browser with a simulator, a one-click solver that answers in about 20 moves, a speedcube t…
Online Cursor Editor
A free in-browser editor for drawing your own Windows mouse cursors, including animated ones, which you can then downloa…
Online EXIF Viewer
A browser tool that shows the EXIF data inside a photo, including camera settings, GPS location, and image metadata, pro…
Online Experiment on Dogmatic Thinking
A web experiment adapted from a 2020 study that tests a cognitive quirk linked to dogmatic worldviews, with a write-up o…
Online Hacker Simulator
Mash the keyboard and watch movie-style code, file trees and access-granted screens pour out, so you look like a hacker…
Online Mic Test
A dead-simple tool that lets you test whether your microphone is working, check input levels, and diagnose audio issues…
Online Ruler
A calibrated on-screen ruler that measures real objects on any device, switching between centimeters and inches with cus…
Online Ruler
A free on-screen ruler that measures in inches, centimeters, and millimeters at actual size on a phone, tablet, or compu…
Online Ruler
An on-screen ruler and protractor that shows actual size in centimeters, millimeters, and inches on any device, for quic…
Online Sequencer
A browser-based music sequencer for composing, playing, and sharing songs on a piano-roll grid.
Online Sign
A free printable safety sign maker with hundreds of pictograms and fully customizable text and colors, for building warn…
Online Stopwatch
A free full-screen stopwatch and countdown timer collection built for classrooms and offices, with giant readable digits…
Online Tools
A collection of more than a thousand free browser utilities for editing images, animations, and text, from converters an…
OnlineBoard
A free whiteboard you open in the browser with no login, where anyone with the link sees your drawing in real time and y…
Ons Land
A hexagon-based data visualization of land use across the Netherlands, showing how the country's land is distributed bet…
OnThatDay.in
Pick any date between 1947 and 2025 to see the headlines, prices, people, cinema, sport and technology of India on the d…
Open Anatomy Project
A set of free, open 3D human anatomy atlases you can rotate and explore in the browser, built to give medical students e…
Open Exoplanet Catalogue
An open-source database of every confirmed exoplanet, with statistics, plots, and tools for comparing planets and their…
Open Infrastructure Map
A zoomable world map built from OpenStreetMap data showing power lines, substations, pipelines, telecom cables and other…
Open Knowledge Maps
A visual search interface that turns a research topic into a bubble map of related papers and concepts, helping you get…
Open Syllabus Galaxy
An interactive map of the million most-assigned books and articles in college courses, laid out as a glowing galaxy wher…
OpenAI.fm
An interactive playground for text-to-speech voices where you pick a voice, tone and vibe, type anything, and hear it re…
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