Subtype and topic

Interactive tools & demos about Software engineering

Every link here is both an interactive tool or demo and about software engineering.

Hall of Fame: 14
Candidates: 15
Median span: 8.2 yrs
First seen: 2009

Strongest Hall records

14 items

Asciiflow

www.asciiflow.com 20 submissions · 20 people · 14.2 years

Hall of Fame Class of 2014-01 Resurfaced 2025-08-27

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Explain Shell

explainshell.com 29 submissions · 29 people · 11.3 years

Hall of Fame Class of 2017-03 Resurfaced 2022-05-30

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Shellcheck finds bugs in your shell scripts

www.shellcheck.net 25 submissions · 22 people · 11.9 years

Hall of Fame Class of 2021-05 Resurfaced 2023-11-23

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JSLinux Now Supports x86_64

bellard.org 10 submissions · 10 people · 14.8 years

Hall of Fame Class of 2019-07 Resurfaced 2026-03-09

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Visual and interactive way to learn Git

learngitbranching.js.org 14 submissions · 13 people · 8.1 years

Hall of Fame Class of 2024-09 Resurfaced 2024-09-15

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Regex 101

regex101.com 25 submissions · 20 people · 12.7 years

Hall of Fame Class of 2016-11 Resurfaced 2018-08-25

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How much your computer can do in a second

computers-are-fast.github.io 10 submissions · 10 people · 9.2 years

Hall of Fame Class of 2023-06 Resurfaced 2023-06-22

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RegExr: A website for interactive regex prototyping with syntax highlighting

regexr.com 7 submissions · 7 people · 7.8 years

Hall of Fame Class of 2019-08 Resurfaced 2022-01-27

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Crontab.guru – cron schedule expression editor

crontab.guru 8 submissions · 7 people · 8.2 years

Hall of Fame Class of 2019-10 Resurfaced 2021-08-30

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Codeberg – Fast Open Source Alternative to GitHub

codeberg.org 12 submissions · 12 people · 6.3 years

Hall of Fame Class of 2023-04 Resurfaced 2025-10-01

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JSFuck (2012)

www.jsfuck.com 7 submissions · 7 people · 13.5 years

Hall of Fame Class of 2021-09 Resurfaced 2021-09-26

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10 years since Google said to “hang tight” about Linux support for Google Drive

abevoelker.github.io 6 submissions · 6 people · 8.2 years

Hall of Fame Class of 2022-04 Resurfaced 2022-04-24

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Regexper – Regular expressions visualizer

regexper.com 7 submissions · 7 people · 11.4 years

Hall of Fame Class of 2018-01 Resurfaced 2018-01-30

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Show HN: Search code in GitHub repos using regular expressions

grep.app 7 submissions · 7 people · 5.1 years

Hall of Fame Class of 2024-11 Resurfaced 2023-02-07

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Recently resurfaced

latest 20+ point return

JSLinux Now Supports x86_64

bellard.org 10 submissions · 10 people · 14.8 years

Hall of Fame Class of 2019-07 Resurfaced 2026-03-09

1820max pts

Codeberg – Fast Open Source Alternative to GitHub

codeberg.org 12 submissions · 12 people · 6.3 years

Hall of Fame Class of 2023-04 Resurfaced 2025-10-01

503max pts

Asciiflow

www.asciiflow.com 20 submissions · 20 people · 14.2 years

Hall of Fame Class of 2014-01 Resurfaced 2025-08-27

368max pts

Visual and interactive way to learn Git

learngitbranching.js.org 14 submissions · 13 people · 8.1 years

Hall of Fame Class of 2024-09 Resurfaced 2024-09-15

342max pts

Shellcheck finds bugs in your shell scripts

www.shellcheck.net 25 submissions · 22 people · 11.9 years

Hall of Fame Class of 2021-05 Resurfaced 2023-11-23

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Candidates

Browse 15 candidates

Cdecl – Turns English phrases into C declarations

cdecl.org 21 submissions · 21 people · 15.0 years

Candidate Resurfaced 2024-11-11

Needs:2 breakout events 720+ days apart

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Git Cheatsheet (Visualization)

www.ndpsoftware.com 12 submissions · 12 people · 12.4 years

Candidate Resurfaced 2023-02-07

Needs:2 breakout events 720+ days apart

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Free unlimited rebooting experience from vintage operating systems

www.therestartpage.com 10 submissions · 10 people · 12.3 years

Candidate Resurfaced 2016-04-15

Needs:2 breakout events 720+ days apart

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Happy 1600M epoch second

www.epochconverter.com 4 submissions · 4 people · 13.6 years

Candidate Resurfaced 2023-11-14

Needs:5 submissions

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SQL Fiddle

sqlfiddle.com 11 submissions · 10 people · 8.6 years

Candidate Resurfaced 2013-10-09

Needs:2 breakout events 720+ days apart

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Parinfer – Simpler Lisp Editing

shaunlebron.github.io 12 submissions · 6 people · 8.1 years

Candidate Resurfaced 2025-01-20

Needs:2 breakout events 720+ days apart

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Show HN: Seashells – Pipe output from CLI apps to the web in real time

seashells.io 4 submissions · 4 people · 5.8 years

Candidate Resurfaced 2021-10-18

Needs:5 submissions

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8bit Workshop

8bitworkshop.com 8 submissions · 8 people · 7.9 years

Candidate Resurfaced 2022-09-12

Needs:2 breakout events 720+ days apart

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Does my data fit in RAM?

yourdatafitsinram.net 4 submissions · 3 people · 4.4 years

Candidate Resurfaced 2022-08-02

Needs:2 breakout events 720+ days apart5 submissions

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Pev: Postgres ‘Explain’ Visualizer (2016)

tatiyants.com 5 submissions · 4 people · 7.3 years

Candidate Resurfaced 2017-07-23

Needs:2 breakout events 720+ days apart

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JavaScript Is Weird

jsisweird.com 6 submissions · 4 people · 2.2 years

Candidate Resurfaced 2023-08-13

Needs:3 active years

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Programming Language Inventor or Serial Killer?

vole.wtf 3 submissions · 3 people · 4.6 years

Candidate Resurfaced 2025-09-17

Needs:5 submissions

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Zerg: Boot a VM instance per request, all in under 250 ms

zerg.erlangonxen.org 5 submissions · 5 people · 4.9 years

Candidate Resurfaced 2017-12-27

Needs:2 breakout events 720+ days apart

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ShareLaTeX

www.sharelatex.com 4 submissions · 4 people · 4.5 years

Candidate Resurfaced 2016-07-20

Needs:2 breakout events 720+ days apart5 submissions

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C2Rust: translate C into Rust code

c2rust.com 4 submissions · 4 people · 3.6 years

Candidate Resurfaced 2022-02-01

Needs:2 breakout events 720+ days apart5 submissions3 active years

160max pts