h1yapp

scripting/

html/

color property manager

set the color property to the storage.

storage manager

persist/delete from the storage.

pwa manager

register/unregister the service worker.
update/delete the cache.

pwa/

vertex generator

generate a polygon image from the input values.

calendar

the calendar starting by the day of the week. last grid: month.

scalable reversi

the (4+2n)**2grids reversi. infinite undo available via a1 style.

zip generator

generate zip from directory. zip(2.0or4.5) utf-8(file path) unencrypted
if the file path length is over 260, the process to unzip may fail.

text xlsx generator

generate text xlsx(zip) from directory. zip(2.0or4.5) utf-8(file path) unencrypted
if the file path length is over 260, the process to open may fail.

qr code generator

generate QR Code from the input values. numeric:n[0-9], alphanumeric:a[0-9A-Z $%*+-./:], kanji:k[part of sjis]
QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and in other countries.

totp generator

generate a totp from the secret key(A-Z2-7).
if the 'navigator.clipboard' is supported, press outside the input field, copy to the clipboard.

base encoder

base encode/decode via string.

base encoding changer

change the base encoding not via string.

uri encoder

uri encode/decode.

image converter

convert image to raster via OffscreenCanvas.convertToBlob().
the max number of file downloads varies by browser.

apng generator

generate an apng(n fps) from images(default=frame1?n:1+n).

monophony generator

generate monophony(wav) from the 12 equal temperament.

wav downconverter

downconvert wav.

base converter

convert the base.
if the 'navigator.clipboard' is supported, press the math formula display area, copy to the clipboard.

golden spiral generator

generate a golden spiral image from the input values.