Personal toolbox
Build once. Use daily. Share when it helps.
A growing collection of practical tools plus notes and tutorials from daily work.
Local processing first
No account required
Works on mobile
What I use most
PDF watermark
Add text or logo watermark fast.
Image compressor
Shrink images without quality loss.
JSON formatter
Clean and validate data.
Tools
Quick, focused utilities for daily workflows.
Notes and tutorials
Curated guides, reading notes, and practical summaries from daily work.
Why this site exists
I kept searching for the same utilities again and again, so I built one place for them.
Expect more tools, multilingual support, and a curated archive as it grows.
About this toolbox
Built for daily work, shared for anyone who needs it.
Privacy-first
Local processing whenever possible.
Always free core
Key tools stay open for everyone.
Global-ready
English and Chinese friendly UI.
Sustainable
Ads only when traffic justifies it.
Stay in the loop
Want updates? Suggest a new tool or feature.
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