QuickJS VS CrossBridge

QuickJS

Application and Data, Build, Test, Deploy, and JavaScript Compilers

CrossBridge

CrossBridge is the open-source version of Adobe FlasCC (formerly the Alchemy project).

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2021-08-20

Landing page //
2019-11-06

QuickJS

Website: bellard.org
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CrossBridge

Website: adobe-flash.github.io
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QuickJS features and specs

Lightweight
QuickJS is designed to be lightweight with a small footprint, making it easy to embed in applications and suitable for resource-constrained environments.
Fast Startup Time
QuickJS offers very fast startup times, which can be beneficial for applications that require quick script execution without a long initialization period.
Full ES2020 Support
QuickJS supports the full ES2020 specification, providing modern JavaScript features and syntax, which is advantageous for developers who want to use the latest JavaScript features.
Embeddability
Being easy to integrate into other applications or systems, QuickJS provides a simple C API, which facilitates embedding it in various software and platforms.
Single File Distribution
QuickJS can be distributed as a single file, simplifying packaging and distribution without needing external dependencies.
Memory Efficiency
Its memory efficient design allows QuickJS to run scripts in environments with limited memory resources, making it suitable for IoT devices and embedded systems.

Possible disadvantages of QuickJS

Limited Ecosystem
QuickJS, being a relatively new and niche project, has a smaller ecosystem compared to more established JavaScript engines like V8, which means fewer libraries and community resources are available.
Performance
While QuickJS is efficient, it may not deliver the same high-performance execution as more mature engines like V8, especially in applications requiring intensive computational processing.
Lack of Long-term Support
QuickJS may not have the same level of long-term support and ongoing development as larger projects maintained by large companies or communities.
Single-threaded
QuickJS runs in a single thread, which can be a limitation for applications that require multithreading support for parallel processing.
Limited Debugging Tools
Compared to more popular JavaScript engines, QuickJS has fewer debugging tools and integrations, which might make development and troubleshooting more challenging.

CrossBridge features and specs

No features have been listed yet.

QuickJS videos

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QuickJS - IO, axios, redaxios, fetch

CrossBridge videos

No CrossBridge videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to QuickJS and CrossBridge)

CrossBridge

Text Editors

100 100%

Text Editors

0% 0

Email Marketing

0 0%

Email Marketing

100% 100

IDE

70 70%

IDE

30% 30

Application And Data

100 100%

Application And Data

0% 0

User comments

Share your experience with using QuickJS and CrossBridge. For example, how are they different and which one is better?

Social recommendations and mentions

Based on our record, QuickJS should be more popular than CrossBridge. It has been mentiond 43 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

QuickJS mentions (43)

The many, many, many JavaScript runtimes of the last decade
I see a few mentions of QuickJS, but they all refer to the fork of Bellard's QuickJS https://bellard.org/quickjs/, which I think deserves a mention. It seems to be still active (last release 2025-04-26, GitHub mirror at https://github.com/bellard/quickjs shows some activity). - Source: Hacker News / 2 months ago
SQLite JavaScript: Extend your database with JavaScript
This is a fantastic approach. BTW, it looks like the js engine is "QuickJS" [0]. (I'm not familiar with it myself.) I like it because sqlite by itself lacks a host language. (e.g., Oracle's plsql, Postgreses pgplsql, Sqlserver's t-sql, etc). That is: code that runs on compute that is local to your storage. That's a nice flexible design -- you can choose whatever language you want. But quite typically you... - Source: Hacker News / 4 months ago
Servo in 2024: stats, features and donations
And some lightweight alternatives like Bellard's QuickJS (https://bellard.org/quickjs/) in C and Kiesel (https://kiesel.dev/) in Zig. - Source: Hacker News / 8 months ago
Building Static HTML Pages with JSX Server-Side Rendering
Built on a highly optimized JavaScript runtime powered by QuickJS, Query offers fast startup times and efficient execution. Its built-in caching mechanism further enhances performance by storing function responses, reducing database load and latency. This focus on speed makes Query a standout choice for server-side rendering, especially in applications with many components. - Source: dev.to / 9 months ago
Lua Is So Underrated
Which JS VMs have you tried embedding? People in this thread have suggested https://github.com/Moddable-OpenSource/moddable, and https://duktape.org/, but I haven't tried any of them. - Source: Hacker News / 9 months ago

CrossBridge mentions (8)

WASM Wayland Web (WWW)
Wrong, Flash was in the process of doing exactly that. https://adobe-flash.github.io/crossbridge/ Before asm2js was even an idea, Unreal compiled to Flash via CrossBridge. https://www.youtube.com/watch?v=xzyCTt5KLKU https://www.youtube.com/watch?v=ZmZS7B1pLWg To this day, with exception of maybe PlayCanvas, there are hardly any tools that can match the same developer experience for WebGL, almost 15 years later. - Source: Hacker News / 7 months ago
Snappy UIs with WebAssembly and Web Workers
Already offered by PNaCL, and CrossBridge, in 2010. https://adobe-flash.github.io/crossbridge/ Still waiting for those wonderful WebAssembly + WebGL games that can match Infinity Blade for iOS from 2010, the game Apple used to show off iOS GL ES 3.0 capabilities. - Source: Hacker News / about 2 years ago
Ambient: The Multiplayer Game Engine
Historical note, it was originally done as UE3 to Flash C++ Crossbridge / Stage 3D, the WebGL version came later. https://www.shacknews.com/article/72813/epic-releases-epic-citadel-unreal-engine-demo-in-flash "Unreal Engine 3 Support for Adobe Flash Player - Epic Citadel" -- https://www.youtube.com/watch?v=xzyCTt5KLKU https://help.adobe.com/en_US/as3/dev/WSF24A5A75-38D6-4a44-BDC6-927A2B123E90.html. - Source: Hacker News / over 2 years ago
Get started with GPU Compute on the web
It is basically Flash, but now it is standard, so everyone is happy. https://adobe-flash.github.io/crossbridge/ https://youtu.be/xzyCTt5KLKU. - Source: Hacker News / about 3 years ago
WebGL Water
Easy, so many reasons beyond just blaming Apple, - WebGL is a subset of ES 3.0, when the hardware can do GL 3.2 - WebGPU, when it arrives sometime during 2022, it will be a 1.0 MVP of the features from Metal, Vulkan and DX 12, with yet another shading language that looks like a mix of C++/HLSL/Rust, WGSL. - Lack of tooling, to debug WebGL you have basically to debug the browser process and try to track down your... - Source: Hacker News / almost 4 years ago