Tech
1,683 interactive pages · most loved first · page 15 of 71· Tonble one of these
Data Viz Color Palette Generator
A free tool for building visually equidistant color palettes for charts and dashboards, with single-hue, divergent and m…
DataBasic
A suite of friendly free web tools for data beginners: count words in song lyrics, compare two texts, explore a spreadsh…
datablocks
A node-based editor for exploring, analyzing, and transforming data without code, with blocks for filtering, grouping, m…
Datatype
An OpenType variable font that turns simple text expressions into inline charts using ligatures, with no JavaScript or i…
Dawn of the Dad
A hobbyist site hosting a 15x15 crossword builder and Sudoku solver and builder, made for fun with templates and constra…
Days Since AI
A live counter that tracks how many new Hacker News headlines mention AI today, with a timer that resets on every new AI…
DB Fiddle
An online SQL playground that runs real queries against MySQL, PostgreSQL, and SQLite instances so you can test and shar…
dCode
A sprawling free library of hundreds of classical and modern cipher tools, letting curious visitors encode, decode, and…
Decompiler Explorer
An interactive online tool that runs an uploaded program through many popular decompilers at once and shows their C-like…
DeFlock
A crowdsourced open map of automated license plate reader cameras across the US, letting you zoom into your own neighbor…
DeFlock Map
An interactive map of automated license plate reader cameras across the United States, with tools to see where they are…
DeFlock Maps
An open-source map of automated license plate reader cameras across the United States, with routing that helps you plan…
Defrag
A visualization that recreates the classic hard drive defragmentation screen, with blocks shuffling into place for a nos…
Defrag98
A Windows 98 disk defragmenter simulator in your browser, with moving cluster blocks and real hard drive sounds that bri…
Demake
Converts any image into hardware-compliant art and displayable code for 8-bit and 16-bit consoles and handhelds, running…
DeskSpacing
A 3D desk setup planner where you arrange monitors, keyboards, and accessories to mock up your workspace before you buy…
Desktop Neo
An animated design concept that reimagines the desktop computer interface with panels instead of windows, tag-based file…
Detexify
Draw a symbol by hand and Detexify finds the matching LaTeX command, saving time hunting for the right math or special c…
Detoxify
A web tool that generates a fake stand-in app for any addictive app, a playful approach to digital detox that tricks you…
Devina
A toolbox of in-browser utilities for developers, designers and content editors, covering converters, generators, format…
Dialup.rip
A 1997 Macintosh that boots in your browser and dials up on a 28.8k modem, so you can hear the modem scream and wait for…
Dice Run
A dice roller for tabletop RPGs that parses standard notation, keeps a full audit trail of each roll, and charts the pro…
DiceBear
An avatar generator with 61 styles that creates deterministic SVG profile pictures from any seed, with a playground for…
Diffchecker
A free online diff tool that compares two blocks of text, code, images, or files and highlights every line that changed…
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