Independent software studio
Useful software for everyday work.
Avenpa makes practical tools for the small jobs that deserve a clear answer, from a payroll calculation to a photo ready to send.
- 01No sign-up
- 02Served from the edge
- 03Images stay on your device
Products
Software from the studio. One live today, more in the workshop.
Inside Avenpa Tool
Four kinds of small job. Each one finished in a tab.
Money and payroll
10 tools. Net salary, severance, overtime and year-end tax, worked out under Korean labour rules that are dated by year and covered by tests.
ExploreDates and time
8 tools. Day counts, D-days, ages and instalments, counted against the real calendar instead of an average month.
ExploreImages, on your device
7 tools. Resize, merge, censor and compress photos without uploading a single pixel. The browser does the work.
ExploreNumbers and text
8 tools. Percentages, unit ratios, character counts and QR codes. The arithmetic you would otherwise do twice.
Explore33
Tools live on tool.avenpa.com
0
Sign-up walls in front of an answer
0
Photos uploaded to a server
4
Kinds of job: money, dates, images, numbers
Company
A small studio, on purpose. The person who builds a tool stays to fix it, explain it and make it better.
About AvenpaResearch
Notes from the workshop
Rules that change every January
Rates that move on dates we do not control, kept in one dated module so the calculators cannot disagree with each other.
A calculator that is quietly wrong is worse than none
Money pages assert the thresholds and the rounding, and read the rates out of the source instead of carrying a second copy of them.
Sessions without a session server
Accounts moved out of a database behind a tunnel and into the worker itself, so the session store can no longer take a page down.
How we build
Small tools, held to a high bar.
Build
Explore01
Fast by default
Every page is prerendered and served from the edge. There is no spinner between you and the answer.
02
Nothing to sign up for
Tools open for anyone with the link. An account exists only if you want to save something you made.
03
Numbers carry tests
Rates and thresholds are asserted in the test run, and each page says which year they apply to.
Have a job in mind?
Tell us what needs doing. A person at the studio will get back to you.