kkachi.app
liveThe main hub of the 100 apps project. A place that collects all apps and blog posts.
Kkachi Project
Building 100 apps in 2026.
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CLONE-40B
liveA PWA calculator that recreates the Casio JS-40B so you can use it on your smartphone. Handy for CPA and tax accountant exam prep.
ICS Editor
liveA web editor to create and edit standard ICS calendar files. Easily add schedules to Google or Apple Calendar.
Kkachi Work Clock
liveA work-hours tracker for solo founders and freelancers. No login or server storage — just clock in/out, break, and meal buttons in your browser.
EXIF Editor
liveA web editor to view, edit, and remove EXIF metadata (like GPS location) from your photos. Strip personal info before sharing.
kkachi.app
The main hub of the 100 apps project. A place that collects all apps and blog posts.
CLONE-40B
A PWA calculator that recreates the Casio JS-40B so you can use it on your smartphone. Handy for CPA and tax accountant exam prep.
ICS Editor
A web editor to create and edit standard ICS calendar files. Easily add schedules to Google or Apple Calendar.
Kkachi Work Clock
A work-hours tracker for solo founders and freelancers. No login or server storage — just clock in/out, break, and meal buttons in your browser.
EXIF Editor
A web editor to view, edit, and remove EXIF metadata (like GPS location) from your photos. Strip personal info before sharing.
Recent Posts
View all →- If You're Worried About Personal Information Leaking Through Your Photos, Use an EXIF Editor to Delete the Metadata
- I Built a Work Time Tracker for Solo Entrepreneurs
- I Made a Calendar File Editor, ICS Editor.
- I Made CLONE-40B So You Can Use Casio's JS-40B Calculator on Your Smartphone
- Making 100 Apps: Launching the Magpie Project
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