Project workspace
Create or import HTML, CSS, JS, Markdown, JSON, SVG and images. Full file tree, editing, and organisation.
OFFLINE-FIRST WEB WORKSPACE & PWA BUILDER
BUILD WHAT
YOU IMAGINE.
CHIKARA ViewPort is a sovereign workspace for building, previewing and publishing HTML, CSS, JavaScript and Markdown projects — then packaging them as installable apps. No ads. No account. No server required.
What It Does
A COMPLETE WORKSPACE, NOT ANOTHER HTML VIEWER.
Create a project, edit it, preview it across real device sizes, and package it as an installable app — all inside one file that runs entirely on your device.
Responsive preview
Test your project at real phone, tablet and desktop viewport sizes — not a scaled-down screenshot.
Markdown reader
Read Markdown documents in a clean typographic reading mode, sanitised for safety.
PWA builder
Generate a manifest, service worker and icons, then export a working installable app.
ZIP & export
Export a complete, standalone project — with real binary assets — ready for any static host.
Works offline
Projects are stored on-device. Once installed, ViewPort keeps working without a connection.
The Workflow
FROM IDEA TO INSTALLED APP.
The same five steps, whether you are on a phone between meetings or at a desk with a full afternoon.
01CreateStart a new project or import existing HTML, CSS and JS files.
02EditWork in a real code editor with syntax highlighting, on phone or desktop.
03PreviewCheck the layout at phone, tablet and desktop sizes in a sandboxed frame.
04BuildGenerate a manifest and service worker, and validate the project is ready.
05PublishExport a ZIP or single HTML file and host it anywhere — or install it directly.
Sovereign by Design
YOUR FILES STAY YOURS.
ViewPort is designed around the same sovereignty principles as the rest of the CHIKARA ecosystem: data locality, offline capability and no dependency on a company's server to keep working.
01
On-Device Storage
Projects live in your browser's own storage. Nothing is uploaded to build, edit or preview your work.
02
No Account, No Lock-In
Export your project as a ZIP or single HTML file at any time. Your work never becomes trapped inside ViewPort.
03
Honest About Limits
ViewPort has no live AI feature and makes no claim to one. What it does, it does entirely on your device.
Install
Put CHIKARA ViewPort on your phone in a minute.
It installs like an app, opens from your home screen and keeps working without internet. No app store, no account.
You seem to be inside another app’s browser (WhatsApp, Facebook, Instagram…). Those cannot install apps. Open this page in Chrome on Android or Safari on iPhone first.
Android
In Chrome
Open the app, tap the three-dot menu, choose Install app (or Add to Home screen) and confirm.
iPhone & iPad
In Safari
Open the app in Safari, tap Share, then Add to Home Screen, then Add.
Computer
Chrome or Edge
Click the install icon at the right end of the address bar, or open the menu and choose Install.
Installing happens from the app page itself, so the button above opens it with the install options ready. Not seeing “Install”? Check the address starts with https://, reload once, wait about ten seconds, and try the menu again.
Questions
FREQUENTLY ASKED
What is CHIKARA ViewPort?
ViewPort is an offline-first workspace for creating, editing, previewing and packaging websites and web apps. It runs entirely in your browser and can itself be installed as an app.
Do I need an account?
No. ViewPort has no account system, no login and no cloud sync. Your projects are stored locally on the device you're using.
Does it work without internet?
Yes, once loaded. Installing ViewPort as a PWA gives it an offline app shell, so you can keep working without a connection.
Can I get my project out of ViewPort?
Yes. Export a complete ZIP (including real binary assets like images) or a single HTML file at any time, ready to host anywhere.
What can I build with it?
Any static HTML, CSS and JavaScript project — landing pages, tools, prototypes, documentation sites — and Markdown-based documents read in a clean typographic view.
Is my code safe to preview?
Previews run inside a sandboxed frame that cannot access ViewPort's own stored projects, so opening someone else's project can't put your other work at risk.
Ready When You Are
YOU HAVE THE IDEA.
VIEWPORT IS THE WORKSHOP.
Open it on your phone or your desktop and start building.