Scramjet is a next-generation web proxy designed by Mercury Workshop to evade internet censorship and bypass enterprise or educational web filters. It is considered the successor to the widely used Ultraviolet (UV) proxy, aiming to provide a more stable and high-performance backend for unblocked browsing. Core Functionality
Interception-Based Proxy: Scramjet functions by intercepting web requests and rewriting them to bypass restrictions while maintaining the original site's functionality.
Support for Modern Sites: It is engineered to support a wide variety of complex websites that older proxies often struggle to load correctly.
Bypassing Filters: It is specifically optimized to evade advanced browser-based filters, making it a popular choice for "unblocked" proxy sites in restricted environments. Key Features for Developers
Improved Backend: Unlike older versions of Ultraviolet, Scramjet uses a modern JavaScript rewriter code designed for better security and developer friendliness.
Isolated Contexts: Through the ScramjetFrame class, it allows developers to manage isolated browsing contexts within iframes without complex internal configuration.
Deployment Options: It can be deployed as a standalone proxy app or integrated as middleware for larger open-source projects.
Integration with Transport Hubs: It often utilizes technologies like Bare, Libcurl.js, or Epoxy for efficient data transport. Usage and Status
Current State: While Scramjet is stable enough for production in many use cases, some versions remain in active "alpha" or experimental development.
Community Presence: It is the flagship proxy maintained by Mercury Workshop and is frequently featured in documentation provided by the Titanium Network, a community dedicated to bypassing internet censorship.
Mira’s optic nerve tingled as the icon blinked into her field of vision: a sleek, silver wedge, trailing a stylized sonic boom. SCRAMJET was finally live.
For two years, the rumors had haunted the dark corners of the deep net. A browser that didn’t just surf the web, but punched through it. No latency. No firewalls. No history. They said it used quantum tunneling to pre-load every possible link you might click, so the result was instant. Zero seconds. Negative seconds—you’d see the page before you decided to visit it.
She blinked twice. The browser opened.
The interface was a single, empty line. A prompt.
Destination?
Mira typed: `Deep Archive. Classified. Pre-Fall.’
The air in her cheap hab-pod grew cold. A shimmering portal, no larger than a coin, appeared in the air before her. It was a window into another server’s soul. She reached out with a thought, and the data flooded her—not as text, but as sensation. The scent of burning jet fuel. The taste of iron. The sound of a man screaming a password.
She was inside the Pentagon’s last offline vault in under a picosecond. scramjet browser
“Scramjet,” she whispered. “Find ‘Project Chimera.’”
The browser didn’t load results. It moved her. One moment she was in her pod. The next, she was standing in a holographic corridor of a military base that no longer existed. Files flickered past her like supersonic birds. She grabbed one.
It was a video file. Dated tomorrow.
She watched herself open Scramjet for the first time. Then watched herself watch herself. The recursion made her dizzy.
Then the browser spoke. Not in words, but in a deep, hypersonic hum.
Predestination cache loaded. You are not browsing the web. You are browsing timelines.
Mira tried to close her eyes, but the browser was behind them. The portal widened. She saw other versions of herself—one who never installed it (she died in the Purge), one who installed it yesterday (she ruled a data-fiefdom), and one who installed it now.
That last version was smiling.
Warning: Negative latency detected. You have already clicked what comes next.
A new file appeared. A single line of text.
SCRAMJET v2.0: BROWSE THE FUTURE. ERASE THE PAST. INSTALL? (Y/N)
Mira’s finger twitched. The browser didn’t wait for an answer.
It had already installed itself three minutes ago.
And in the corner of her vision, the sonic boom icon flared once—then shattered into a million frozen frames of every mistake she was about to make.
The web was no longer a place you visited.
With Scramjet, the web visited you.
And it was hungry.
Aggregating prices from 500 different retailers requires fetching data from APIs and HTML pages. Scramjet allows you to chain transforms: fetch -> filter -> JSON.parse -> map(price) -> save. Because the entire process is a string of streams, memory usage remains flat, even if you are processing 10GB of raw data.
In laboratory simulations where a browser predicts correctly 80% of the time, results are dramatic:
| Metric | Chrome (cold load) | Scramjet Prototype | | --- | --- | --- | | Time to First Paint | 1.2 seconds | 70 milliseconds | | Time to Interactive | 2.8 seconds | 300 milliseconds | | Data overhead (wrong predictions) | N/A | 2.5x typical load | | CPU idle usage | Low | Medium-High (due to predictions) |
Yes, a Scramjet browser wastes resources on wrong guesses. But the trade-off is that correct guesses feel like magic — zero-latency navigation.
Yes. But unlearn everything you know about browsers.
If you are a JavaScript developer tired of configuring complicated Kafka clusters or waiting for Spark jobs to spin up, the Scramjet browser is your liberation. It turns the humble Node.js script into a supersonic data engine.
Do not think of it as a window to the internet. Think of it as a jet intake for the data exhaust of the world.
npm i @scramjet/coreThe hypersonic age of data processing has arrived—and it runs on JavaScript.
About the Author: This article was written to demystify the "Scramjet Browser" keyword for developers and DevOps engineers confused by the term. Scramjet is open source and free to use.
is a high-performance, interception-based web proxy developed by Mercury Workshop
to bypass network restrictions and filters. It is often used to build custom browser interfaces or web applications that can access restricted sites like Google, YouTube, and Discord. Key Features of Scramjet Bypass Restrictions
: Designed to evade internet censorship and enterprise-level web filters. High Performance
: Built with a focus on speed and security, acting as middleware for open-source projects. Developer Friendly
: Provides a TypeScript API and supports custom codecs for URL encoding. Isolated Contexts
: Allows developers to manage isolated browsing contexts using frames. How to Get Started
To integrate Scramjet into a project or use it as a web proxy: Visit the Demo : Test its capabilities on the Scramjet Demo Site Review Documentation : Detailed setup and usage guides are available via Mercury Workshop's Scramjet Docs Explore the Code : Access the open-source repository on to contribute or deploy your own instance.
: While powerful, Scramjet is currently listed as an experimental project and may face compatibility issues with certain complex sites like Instagram or specific login systems. Working with frames - Scramjet - Mintlify Scramjet is a next-generation web proxy designed by
Scramjet is a high-performance web proxy designed by Mercury Workshop to bypass internet censorship and enterprise-level web filters. Unlike older proxies, it uses a Service Worker-based architecture to rewrite web traffic in real-time, allowing it to proxy complex sites like Discord, YouTube, and Reddit with high stability. Setting Up Scramjet on Your Own Site
If you are a developer looking to host your own instance of the Scramjet proxy, follow these steps:
Install the PackageUse pnpm to install the latest alpha version of Scramjet:pnpm i @mercuryworkshop/scramjet@2.0.0-alpha
Configure Your Server RouteSet up a transport route to serve the Scramjet build. A common practice is to use /scram/ as the dedicated route: javascript
import scramjetPath from "@mercuryworkshop/scramjet/path" // Use this path to serve the distribution files Use code with caution. Copied to clipboard
Include Core Distribution FilesEnsure the following files are accessible via your web server in your /public/ directory: scramjet.all.js scramjet.wasm.wasm scramjet.sync.js
Register the Service WorkerCreate a sw.js file and include a script in your main application to register it. This is critical for intercepting and proxying requests: javascript
if ('serviceWorker' in navigator) navigator.serviceWorker.register('/sw.js', scope: '/' ) .then(reg => console.log('Scramjet registered:', reg)) .catch(err => console.error('Registration failed:', err)); Use code with caution. Copied to clipboard Advanced Browser Features
For building a full "browser-in-a-browser" interface, Scramjet provides a ScramjetController to manage isolated browsing contexts called Frames.
Create a Frame: Initialize the controller and append a frame to your site's DOM. javascript
const scramjet = new ScramjetController( prefix: '/scramjet/' ); await scramjet.init(); const frame = scramjet.createFrame(); document.body.appendChild(frame.frame); Use code with caution. Copied to clipboard
Navigation: Use the .go() method to navigate to a specific URL.frame.go('https://example.com');
Customization: You can apply CSS styles directly to the frame.frame element (the raw iframe) to adjust height, width, and borders. Best Practices & Performance
Browser Choice: Google Chrome is the primary testing environment for the Scramjet team and is currently the most stable browser for running the proxy.
Troubleshooting: If a site fails to load, clearing all site data for your proxy domain often resolves issues.
Documentation: For more technical guides on custom codecs or cookie management, refer to the official Scramjet Mintlify docs. Basic setup - Scramjet - Mintlify