Tech
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hcker.news
A Hacker News reader that helps you follow stories and discussions, with filters to cut noise, including an option to hi…
HD Radio Directory
A community-built directory of HD Radio stations with listings, a map, statistics and a dashboard, made for radio hobbyi…
HE 3D Network Map
A 3D WebGL globe of Hurricane Electric's backbone network, showing the fiber links and data centers that carry internet…
HEAD
A simple guide to the HTML head element, laying out the meta tags, links and scripts worth knowing for SEO, social shari…
Head-Fi
One of the oldest and largest headphone communities online, with forums covering headphones, DACs, amps, and personal au…
nwavguy.blogspot.com
Article
Headphone and Amp Impedance
An engineer's clear explanation of why the same headphones can sound different on different players, and how output impe…
Heather Burns Blog
A blog by tech policy specialist Heather Burns on internet law, regulation, and politics, explaining what new rules mean…
Heavens-Above
A long-running satellite tracking site that predicts visible passes of the ISS, Starlink trains, and thousands of satell…
Heavy Metal and Natural Language Processing
A data scientist scrapes thousands of heavy metal lyrics to find the most metal and least metal words in English, with c…
Hedy
A gradual programming language for learners that starts with simple text commands and grows toward Python, with interact…
Height Comparison Chart
A 3D height comparison tool where you enter the heights of different people in centimeters or inches and see them stand…
HeliHub
An independent news site tracking the helicopter industry worldwide, from new deliveries to operator fleet changes.
HeliStart
A portal for helicopter enthusiasts covering rotorcraft, simulators, experimental and kit-built helicopters, manufacture…
Hello Algo
A free data structures and algorithms course with animated illustrations and ready-to-run code, aimed at beginners learn…
Hello Human (demo)
A demo of a puzzle game where you play against a mischievous AI intent on learning to be your friend, as long as you are…
Hemingway Editor
A free browser editor that highlights dense sentences, passive voice, and adverbs to help you write bold, clear prose.
Henry Heffernan
An interactive portfolio set inside a 3D desk scene, where a working retro computer emulator lets you browse projects an…
Henry Leach
A notes blog by a data scientist, aircraft designer, and guitarist, collecting write-ups on whatever the author is tinke…
heredragonsabound.blogspot.com
Website
Here Dragons Abound
A blog exploring the procedural generation and rendering of fantasy maps, with detailed posts on drawing coastlines, mou…
Hex Clock
A clock that shows the current time as a hex color, shifting through the full day from #000000 to #235959 as the seconds…
Hexclock
A clock that shows the current time as a hex color, so the page background slowly shifts as the hours, minutes, and seco…
Hey, Computer, Make Me a Font
A personal journey building a generative ML model from scratch and teaching it to produce real TrueType fonts, with glyp…
HeyDesigner
A daily hand-picked collection of design links covering UX, modern CSS, typography and inspiration, with an archive of p…
HeydonWorks
Essays and articles on web development, accessibility, and design by Heydon, written in an opinionated voice that mixes…
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