user@local:~
dark
root@localhost
:~$ motd
[
00z
.co
]
a collection of
77 terminal-style web tools
— all client-side, zero uploads, no server.
image editing, audio/video, crypto, dev utilities, design playgrounds, RF & radio calculators, and everyday helpers.
77
tools
0
servers
100%
client-side
$
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type to filter — press
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image & media
11 tools
img
exif inspector
exif.00z.co
|~
image resizer
resizer.00z.co
<=>
format converter
format-converter.00z.co
zip
image compressor
image-compressor.00z.co
rgb
color picker
color-picker.00z.co
[ ]
image cropper
image-cropper.00z.co
(c)
watermark stamper
watermark.00z.co
ico
favicon generator
favicon-generator.00z.co
grd
sprite sheet slicer
sprite-slicer.00z.co
txt
ascii art converter
ascii-art.00z.co
AA
color contrast checker
color-contrast.00z.co
audio
4 tools
wav
audio trimmer
audio-trimmer.00z.co
<~>
audio converter
audio-converter.00z.co
bpm
metronome
metronome.00z.co
mic
voice memo
voice-memo.00z.co
video
3 tools
gif
gif maker
gif-maker.00z.co
png
frame extractor
frame-extractor.00z.co
cut
video trimmer
video-trimmer.00z.co
text & dev utilities
11 tools
#
hash calculator
hash-calculator.00z.co
64
base64 encoder
base64.00z.co
{ }
json formatter
json-formatter.00z.co
±
diff checker
diff-checker.00z.co
.*
regex tester
regex-tester.00z.co
MD
markdown preview
markdown-preview.00z.co
⇄
csv ↔ json
csv-json.00z.co
Aa
text case converter
text-case.00z.co
W
word counter
word-counter.00z.co
url
url parser
url-parser.00z.co
pdf
pdf ↔ image
pdf-tools.00z.co
crypto & security
7 tools
enc
file encryptor
file-encryptor.00z.co
✓
checksum verifier
checksum-verifier.00z.co
jwt
jwt decoder
jwt-decoder.00z.co
•
password generator
password-generator.00z.co
key
key generator
key-generator.00z.co
csr
csr generator
csr-generator.00z.co
▣
qr tools
qr-tools.00z.co
design & visual
4 tools
css
gradient generator
gradient-generator.00z.co
cvd
color blindness sim
colorblind-sim.00z.co
⊟
image diff tool
image-diff.00z.co
⚙
css playground
css-playground.00z.co
everyday handy
6 tools
m/s
unit converter
unit-converter.00z.co
00:
timer / stopwatch
timer.00z.co
ts
timestamp converter
timestamp-converter.00z.co
⋮
uuid generator
uuid-generator.00z.co
∥
barcode generator
barcode-generator.00z.co
ip
what's my ip
whats-my-ip.00z.co
rf · antenna calculators
10 tools
ant
moxon antenna
moxon-antenna.00z.co
yagi
yagi-uda calculator
yagi-calculator.00z.co
dip
dipole / inverted-v
dipole-calculator.00z.co
jpl
j-pole / slim jim
j-pole-calculator.00z.co
quad
quad loop calculator
quad-loop-calculator.00z.co
hel
helical antenna
helical-antenna.00z.co
gpv
ground plane vertical
ground-plane-vertical.00z.co
lpda
lpda element generator
lpda-calculator.00z.co
disc
discone calculator
discone-calculator.00z.co
loop
mag loop calculator
mag-loop-calculator.00z.co
rf · matching & feedline
6 tools
coax
coax loss / length
coax-loss-calculator.00z.co
lπt
impedance matching (L/π/T)
impedance-matching.00z.co
bal
balun / unun calculator
balun-calculator.00z.co
stub
stub matching
stub-calculator.00z.co
swr
swr / return loss
swr-calculator.00z.co
Γ
smith chart
smith-chart.00z.co
rf · propagation & link budget
5 tools
fspl
free-space path loss
free-space-path-loss.00z.co
frzn
fresnel zone clearance
fresnel-zone.00z.co
link
link budget
link-budget.00z.co
gc
great-circle distance / bearing
great-circle.00z.co
los
radio horizon / line-of-sight
radio-horizon.00z.co
rf · filters & networks
4 tools
lc
lc filter designer
lc-filter-designer.00z.co
coil
coil winding calculator
coil-calculator.00z.co
xc
reactance calculator
reactance-calculator.00z.co
pad
attenuator pad (π/T)
attenuator-calculator.00z.co
rf · general utilities
6 tools
λ
frequency ↔ wavelength
frequency-wavelength.00z.co
dbm
dbm / watt / dbµv
dbm-converter.00z.co
nf
noise figure / sensitivity
noise-figure.00z.co
vswr
vswr mismatch loss table
vswr-table.00z.co
duty
duty cycle / average power
duty-cycle-calculator.00z.co
band
ham band plan lookup
ham-band-plan.00z.co
$
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77
$
every tool runs entirely in your browser — zero uploads, zero server processing, zero tracking