HirenJS is a free, open-source JavaScript playground built for students who only have a smartphone. Write, run, and experiment with JS right in your browser — no installation needed.
// 👋 Welcome to HirenJS — paste or type below const greet = (name) => { return `Hello, ${name}! Welcome to HirenJS 🚀`; }; const nums = [1,2,3,4,5]; const doubled = nums.map(n => n * 2); console.log(greet("Student")); // → Hello, Student! 🚀 console.log(doubled); // → [2,4,6,8,10]
No fancy computer required. HirenJS packs a professional coding environment into a single webpage that loads on any device.
No accounts. No downloads. Just open and code.
Click any snippet in the editor and the code is inserted instantly — great for exploring new concepts without starting from scratch.
"Every student deserves a professional coding environment — regardless of what device they own."
Most students in India and around the world only have access to a smartphone. HirenJS makes sure that's enough to learn programming.
No account creation, no credit card, no App Store download. Open a URL and start coding — that's the whole process.
HirenJS is MIT-licensed and will remain free forever. Fork it, improve it, use it in your classroom — no restrictions.
Hiren Rathod is a developer from Surendranagar, Gujarat, India who built HirenJS to solve a real problem — most online code editors are desktop-only or require heavy installs. HirenJS was born out of the belief that a student with only a phone should be able to learn JavaScript just as effectively as one with a laptop.
The project has been assigned a DOI (Digital Object Identifier) making it citable in academic work, and is actively maintained on GitHub.
HirenJS is 100% open source under the MIT License. Every line of code is on GitHub — fork it, customise it for your classroom, report bugs, or contribute new features. The community makes it better for everyone.
"I only have an old Android phone and couldn't afford a laptop for college. HirenJS is the only editor that actually works well on my screen. I've learned so much JavaScript because of it."
"The snippet library is amazing for beginners. I can see real working code and then modify it to understand how it works. Way better than reading a textbook."
"I teach a JavaScript workshop to underprivileged students. I now recommend HirenJS as the first tool because it works on any phone and there is zero setup. Brilliant project."
Open the editor on your phone, tablet, or computer. No account. No download. Just JavaScript.