CHC Ideas DEV · Code laboratory

An idea. A script.
A result.

Experiment with HTML, JavaScript, TypeScript, Python and PHP from your phone. Run locally, read the output and bring your web results into BrowserMaster.

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First Android release in preparation · Shared CHC Ideas DEV account

● ● ●experiment.py · Python▶ RUN
# Small experiments, real answers.
from math import factorial

values = [3, 4, 5]
for value in values:
    print(value, "→", factorial(value))
OUTPUT
3 → 6
4 → 24
5 → 120
HTML + CSSJavaScriptTypeScriptPython · PyodidePHP 8.3 · WebAssembly
Built for experimenting

From “what if?” to “it works”.

A focused workspace for trying snippets, learning a language and checking an idea before adding it to a larger project.

01

Local runtimes

Bundled JavaScript, TypeScript, Python and PHP runtimes. Your scripts stay on your device.

02

A clear execution cycle

Write, run, inspect output and stop. Fresh workers and a 30-second execution limit keep experiments manageable.

03

Encrypted sandboxes

Name and save up to 100 local sandboxes, separated by account and protected with Android Keystore.

04

Bring your own files

Import and export source files through Android’s file picker. No broad storage permission is required.

05

One DEV identity

Use your existing CHC Ideas account, password recovery and shared two-step verification.

06

Examples to get started

Start with a working example in every language and keep the result beside your code.

SandboxMaster × BrowserMaster

Your web result, ready to inspect.

Open HTML pages and PHP-generated HTML in BrowserMaster. A temporary loopback address keeps previews on the same device, with no source-code upload.

Explore BrowserMaster →
SandboxMaster
Write and run HTML or PHP
↓
127.0.0.1 · Temporary preview
Same device · Two-minute lifetime
↓
BrowserMaster
See the page and inspect the result
Know your environment

Small sandboxes. Clear boundaries.

This first release runs snippets locally, without external networking. Python and PHP use virtual filesystems. TypeScript transpiles snippets; multi-file imports, third-party package installation and full server projects are planned for later versions. Web previews support inline HTML, CSS and JavaScript.

Make room for your next idea.

SandboxMaster is joining CHC Ideas DEV.

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CHC Ideas DEV Apps

A family built for development.

DBMaster

Manage SQL Server and MySQL from Android.

Available →

CodeMaster

Professional editor with projects, tabs, and remote connections.

Available →

ServerMaster

SSH, sessions, keys, remote files, and monitoring.

Coming soon →

BrowserMaster

Full browsing with DOM inspection, console, and network analysis.

Available →

RequestMaster

HTTP requests, headers, bodies, and JSON responses on Android.

Coming soon →

SandboxMaster

Run HTML, JavaScript, TypeScript, Python and PHP locally on Android.

Coming soon →