A few months ago I was building a side project and needed to quickly
merge a pdf. Googled it, clicked the first result, and got hit
with a "create an account to continue" popup.
For a pdf merger. Free on the internet since the 90s.
So I built Mizakii.
It started as like 5 tools I kept needing. Then 10. Then I just kept
going and now it's 70+. Every single one is free, no account, no
watermarks, no upsells. Your data never leaves your browser.
Some tools I use myself constantly:
- Hash Generator — MD5, SHA-256, SHA-512, bcrypt, NTLM
- Password Generator — cryptographically secure, works offline
- JSON Formatter — format, validate, minify
- Cron Expression Generator — I always forget cron syntax
- Regex Tester — live match highlighting
- Gradient Generator — CSS gradients with copy-paste code
- Lorem Ipsum Generator — by word, sentence, or character count
- Base64 Encoder/Decoder — strings, images, file data
And 60+ more.
If you've ever Googled "free online [tool]" and been annoyed by what
you found,[] this is for you.
→ [mizakii.com]
Genuinely would love feedback. What tool do you want me to add next?


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