About SenpaiDevシ
A developer platform built for people who ship. Free tools, practical blog posts, and resources to level up your skills.
Our Mission
Make powerful developer tools accessible to everyone — for free. No sign-ups required for most tools, no hidden costs, and no data leaves your browser.
Privacy First
Most of our tools run entirely in your browser. Your data stays on your device. We don't upload, store, or sell your information from tool usage.
What We Offer
51+
Free Online Tools
QR codes, JSON formatters, calculators, SEO tools, and more
16+
Blog Articles
Laravel, PHP, JavaScript, and web development tutorials
100%
Free to Use
No subscription, no hidden fees. Supported by ads.
Built With
SenpaiDev is powered by modern, battle-tested technologies:
Laravel
PHP
Livewire
Alpine.js
Tailwind CSS
MySQL
Vite
Get in Touch
Have questions, feedback, or want to collaborate? We'd love to hear from you.
Contact Us