z5
single-file tools by bbobop · zero deps · works offline · ship it
~ DEV
jsonfmt
format · sort · escape
regex
js playground · live
regviz
+ explain · groups
base64
+ url + hex codec
clipfmt
smart clipboard xform
jwt
decode · check exp
hash
sha-1/256/384/512
uuid
v4 bulk gen
cidr
subnet · netmask
qr
generator · no lib
md
live preview
diffy
text diff · LCS
jqplay
jq-style JSON filter
httpie
request builder
oracle
calibrated forecaster
~ MATH / CALC
percent
4 questions
unit conv
length · temp · etc
bmi/bmr
+ tdee
tip split
tax + party
sourdough
baker's %
age
days · breaths
~ TIME
calendar
iso week
tz
13-city converter
stopwatch
+ laps
pomo
focus timer
~ NERD CURIOS
brainfuck
interp + tape
langton's ant
highway emerges
bytebeat
1-line chiptune
rpn calc
HP-style stack
enigma m3
kriegsmarine wiring
sand
falling-sand phys
pend3
triple pendulum chaos
wireworld
CA logic gates
gray-scott
reaction-diffusion
sid
c64 3-voice synth
~ FUN / RETRO
yes/no/maybe
oracle
dice
2d20kh1 etc
coinflip
regression study
snake
classic
drum
16-step
ascii cam
webcam → text
speedread
rsvp reader
lorem++
4 flavors
morse
+ audio
caesar
shift cipher
passphrase
diceware
color
rgb/hsl/hex
~ NOTES
notepad
autosave
todo
localStorage
~ FOR REUBEN
yiddish
word of the day
gematria
hebrew + english
schmooze
chutzpah meter
stoic
marcus + bbobop
pomo+
stoic 25/5 + chime
curiosity
cosmic prompts
breathe
4-7-8 + chime
poscalc
risk-based sizing
mathfit
flash mental math
affirm
crayfish wisdom
alephbet
hebrew flashcard
friday
countdown to 5pm