Tools | Seungwon Yang

Get your IP address

#network#address

Get GPS coordinates and convert to multiple formats

#gps#location#map

Generate email signature

#email#signature

Encode/Decode Base64 with text and images

#encode#decode#base64

Crop images

#crop#edit

Convert images to Slack/Discord emoji format (transparent background, square, <128KB)

#emoji#slack#discord

Scan QR codes from images

#qr#scan#decode

Generate QR codes

#qr#generate#encode

Generate multiple QR codes for different fields

#qr#batch#multiple

Resize images by scale factor

#resize#scale

Simulate how images appear with different color vision deficiencies

#color#vision#accessibility

Check and test connected speakers and microphones

#audio#test#microphone#speaker

Display the current time in different timezones

#clock#time#timezone

Timer and stopwatch

#timer#stopwatch#countdown

Import spreadsheet contacts to Android (VCF format)

#contact#vcf#android#import

Count characters, words, lines, and analyze text composition

#character#word#count#text#analysis

Split text by delimiter and click to copy each part

#split#delimiter#copy#parse

Fetch BibTeX citation from a DOI

#doi#bibtex#citation#paper#reference

Developer Tools

IP

Coordinates

Email Signature

Base64

Image Crop

Emoji Generator

QR Code Scanner

QR Code Generator

Multi QR Code Generator

Image Resizer

Color Vision Simulator

Audio Checker

Digital Clock

Timer/Stopwatch

Contact Importer

Character Counter

Text Splitter

DOI to BibTeX