Go to tool Finance / Calculators
Compound Interest Calculator
Model compound growth, recurring investing and your FIRE number
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Everyday little things,
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Go to tool About this site
Your everyday online toolbox
Everyday little things,
let a tool lend a hand.
Work it out, look it up, or find a spark of an idea.
Keep handy tools in your pocket and make work and life a little lighter.
10 free tools, ready the moment you open a browser
Hi! What are you working on today?
Small tools, big help.
OPEN THE POCKET
Open your tool pocket.
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Taiwan Money Calculator
See where your finances rank against official Taiwan statistics
Go to tool Go to tool Go to tool Text tools
Word and Character Counter
Paste text to count Chinese characters, English words and characters
Go to tool Image tools
Pixel Smith ID Watermark
Watermark ID copies with “for [purpose] use only”, without uploading photos
Go to tool ROOM FOR ONE MORE
What else could go in the pocket?
The small annoyance in your day could be the idea behind the next tool.
Wish for a tool01
Made for small everyday tasks
From calculating and writing to learning — a tool that fits the moment.
02
Every one, carefully made
The fiddly steps are sorted out, leaving a clear and easy flow.
03
Good ones, added slowly
The tools here keep improving, and new ideas from daily life go into the pocket.
MADE WITH CARE, BY CASPER
One person, making small tools well.
I'm Casper. I moved from design into code, and I like turning ideas into things people can actually use.
I hope one of these small tools is exactly what you needed today.