The Top 10 Online JavaScript Tools

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In the hands of a skilled Web developer, JavaScript can enhance the user’s experience of the website and provide rich interactive components and features. It is always so nice to have a homegrown page in our toolbox to help us during development of our JavaScript. Below is a list what we think the Top 10 Online JS Tools that have been in demand for so long now. Let us know if you think of any other tools which should be in the top 10. Enjoy!

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Online JS Snippet Saver – Can use it as an online editor for snippets build from HTML, CSS and JavaScript. The code can then be shared with others, embedded on a blog, etc.

jsfiddle Source + Demo


Online JS Beautifier – This beautifier can process your messy or compacted JavaScript, making it all neatly and consistently formatted and readable.

jsbeautifier Source + Demo


Online JS Test Cases – Provide an easy way to create and share test cases, comparing the performance of different JavaScript snippets by running benchmarks.

jsperf Source + Demo


Online JS Error Detector – Detects errors and potential problems in JavaScript code.

jshint Source + Demo


Online JS Obfuscator – Provides a way to protect your code by making it unreadable using advanced algorithms and also reduces the size of your files for speed.

jsobfuscate Source + Demo


Online Regex Tester – Online test regular expression, return the result in different forms and generate JavaScript and link to your answer.

regexpal Source + Demo


Online JS Editor – Collaborative JavaScript Debugging.

jsbin Source + Demo


Online JS Minifier – Make your website load faster as the .js files are guaranteed to be smaller in size!

jsmini Source + Demo


Online Snippet Previewer – Lets you edit, fork and preview web snippets online.

plunker Source + Demo


Online JS Prettier – Use this tool to uncompress your JavaScript & jQuery code so that it is human readable again.

jspretty Source + Demo

Frequently Asked Questions (FAQs) about Online JavaScript Tools

What are the benefits of using online JavaScript tools?

Online JavaScript tools offer a variety of benefits. They provide a platform for testing, debugging, and running JavaScript code without the need to install any software. This makes them highly accessible and convenient, as you can use them from any device with an internet connection. They also often come with features like syntax highlighting, error checking, and auto-completion, which can significantly speed up your coding process. Additionally, many of these tools allow you to share your code with others, making collaboration easier.

How do I choose the best online JavaScript tool for my needs?

The best online JavaScript tool for you depends on your specific needs and preferences. Consider factors like the tool’s user interface, features, speed, and reliability. You might also want to look at whether the tool allows for collaboration and how easy it is to share your code. Reading reviews and trying out different tools can also be helpful in making your decision.

Are online JavaScript tools safe to use?

Generally, online JavaScript tools are safe to use. They run the code in a sandboxed environment, which means it’s isolated from the rest of your system. However, it’s still important to be cautious. Avoid running code from sources you don’t trust, and never share sensitive information in your code.

Can I use online JavaScript tools for large projects?

While online JavaScript tools are great for testing and debugging small pieces of code, they might not be the best choice for large projects. They typically don’t offer the same level of functionality and flexibility as a full-fledged development environment. However, some tools do support larger projects, so it’s worth checking out the capabilities of different tools.

Do I need to know JavaScript to use these tools?

Yes, you generally need to have a basic understanding of JavaScript to use these tools effectively. They are designed to help you write, test, and debug JavaScript code, so knowing the language is essential. However, many tools also provide resources and tutorials to help you learn.

Can I use online JavaScript tools offline?

Most online JavaScript tools require an internet connection to function. However, some tools offer offline versions or have features that allow you to work offline. Check the tool’s documentation or FAQ for more information.

Are online JavaScript tools free to use?

Many online JavaScript tools are free to use, but some may offer premium features for a fee. These could include things like advanced debugging capabilities, collaboration features, or additional storage space.

Can I share my code with others using online JavaScript tools?

Yes, many online JavaScript tools allow you to share your code with others. This can be done through a shareable link, embedding the code on a website, or even collaborating in real-time.

Do online JavaScript tools support other languages?

While these tools are primarily designed for JavaScript, many also support other languages like HTML, CSS, and even server-side languages like PHP or Python. Check the tool’s documentation for more information.

Can I use online JavaScript tools on my mobile device?

Yes, most online JavaScript tools are accessible from any device with an internet connection, including mobile devices. However, the user experience may vary depending on the tool and the size of your device’s screen.

Sam DeeringSam Deering
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Sam Deering has 15+ years of programming and website development experience. He was a website consultant at Console, ABC News, Flight Centre, Sapient Nitro, and the QLD Government and runs a tech blog with over 1 million views per month. Currently, Sam is the Founder of Crypto News, Australia.

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