JavaScript Formatter Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report This free Online Javascript Formatter/Beautifier allows you to edit, view, analyze, beautify, and format JavaScript codes. It's a simple and easy way to format and beautify Javascript code for collaboration. Our Online Javascript Code Formatter and Beautifier is the best tool to format and beautify JavaScript code. How to Use the JS FormatterTo use this online JS beautifier follow the given steps: Step 1. Input the JavaScript code in the first box. You can write the code, copy and paste it, or upload the JavaScript code file. Step 2. Click on the format button to format JavaScript code. Step 3. The tool will now format the JavaScript code. Depending on the size of the code, the time may vary but it is usually done within seconds. Step 4. The formatted JavaScript code will be shown in the second box. You can review the results and check if the results are up to your needs. JavaScript Formatter ExampleThe images below show, how our JavaScript formatter beautifies a JavaScript code: Unformatted JavaScript CodeUnformatted JavaScript Code in Input FieldFormatted JavaScript CodeFormatted JavaScript Code in Output FieldAs you can see, the tool has removed unnecessary spaces, and line breaks and fixed the indentation. Key FeaturesHere are some key features of our JavaScript Online Formatter: Support Multiple Input Options: Our online JavaScript formatter provides multiple options to give input. Users can either write the code, copy and paste it from the source, or upload the file directly.Free to Use: This JavaScript beautifier tool is free to use for an infinite number of times. You can use the "reset" button and start the formatting process from the first step.No Sign-up Required: Our tools do not ask users to log in or sign up to use this JavaScript formatter. Just visit the tool, and use it any number of times.Data Security: Our tool is completely safe to use. We do not store your uploaded JavaScript code files and do not ask for any personal information.Why Use JavaScript Formatter?This Javascript formatter is very amazing tool to beautify your JavaScript code. It can be used as JavaScript editor and Javascript viewer. Our Free JavaScript Formatter can help you fix: Indentation: Adds clear indents to code blocks for better clarity.Spacing: Maintains uniform spacing around operators, parentheses, and brackets.Line Breaks: Places line breaks strategically for improved organizationHow Does the JS Formatter Work?Our Online JS Formatter works in a 3-step process: Analyze, Beautify, and Return. In First steo, the tool analyze the input JavaScript code and understands the hierarchy of code lines.In Second step, the tool corrects common formatting errors like spacing, indentation and linebreaks. This makes the code well formatted and easier to read.In the last step, the tool provides the formatted JavaScript code in the output box from where the user can review and use it. Comment More infoAdvertise with us V vishalkumar2204 Follow Improve Article Tags : Utilities WebTech-Tools Similar Reads Converter ToolHTML to PDF ConverterHTML is the foundation of the World Wide Web. An HTML file consists of code blocks that display a web page in a browser. HTML is used in everything from basic static pages to complex web applications. On the other hand, a PDF is a file format used for sharing digital documents. A PDF typically conta3 min readWebp To ICO ConverterThe WebP to ICO Converter Tool offers a convenient solution for users to convert WebP images to ICO format without the need for specialized software. @media (max-width: 768px) {.article--viewer .a-wrapper .content .text iframe {max-width: 100%; min-height: 720px; height: auto;}} @media (max-width: 53 min readRAW to PNG ConverterIt is a website where you can upload RAW pictures, and convert them into PNG files. You can then download the PNG version with just one click. We will also make sure the converted images have a standard size of 400×400 pixels. #content-frame {width: 700px; height: 500px;} @media (max-width: 780px) {2 min readHexadecimal to Decimal ConverterOur Hexadecimal to Decimal Converter tool allows you to convert hexadecimal numbers to their decimal equivalents. iframe {width: 700px; height: 500px;} @media (max-width: 780px) {iframe{max-width: 100%; min-height: 700px; height: auto;}} @media (max-width: 576px) {iframe{min-height: 600px;}}How to U4 min readDesign Hex to Binary ConverterA Hex to Binary converter is a valuable tool that translates hexadecimal numbers (base-16) into binary numbers (base-2). #content-iframe {width: 100%; height: 500px;} @media (max-width: 780px) {.article--viewer .a-wrapper .content .text #content-iframe {max-width: 100%; min-height: 700px; height: au2 min readCalculatorSimple Interest CalculatorSimple Interest Calculator calculates interest accrued on a principal amount over a fixed period, based on a predetermined interest rate. It provides users with the total amount payable, comprising the original principal and the accrued interest. iframe {width: 100%; height: 750px;} @media (max-widt3 min readOnline CGPA to Percentage ConverterThe Cumulative Grade Point Average (CGPA) is a grading system used in schools and universities to measure a student's performance in their studies. iframe {width: 100%; height: 650px;} @media (max-width: 770px) {.article--viewer .a-wrapper .content .text iframe {max-width: 100%; height: 400px;}} @me4 min readPPF CalculatorPPF Calculator (Public Provident Fund Calculator) is a financial tool that calculates the maturity amount and interest earned on a PPF investment. It helps investors plan and manage their savings by providing insights into the potential returns and growth of their PPF contributions over a specified3 min readCompound Interest CalculatorOur Online Compound Interest Calculator tool can help you calculate the future value of your investment considering compound interest.iframe {width: 100%; height: 650px;} @media (max-width: 770px) {.article--viewer .a-wrapper .content .text iframe {max-width: 100%; height: 920px;}} @media (max-width4 min readAge CalculatorAre you curious about your exact age in years, months, and days? Look no further! Our Age Calculator provides a simple and efficient way to determine your age based on your birth date. #content-iframe{width: 100%; height: 560px;} @media (max-width: 768px) {#content-iframe{max-width: 100%; min-height4 min readFormatter and ValidatorJSON Formatter and ValidatorA JSON Formatter and Validator is a tool used to format JSON data for better readability and to validate the structure of JSON to ensure it adheres to proper syntax and schema rules. .article--viewer .a-wrapper .content .text iframe { width:100%; min-height: 760px !important; height:auto;} @media sc3 min readXML Formatter, Validator and MinifierThe XML Formatter, Validator, and Minifier is a powerful online tool designed to streamline your XML file handling. #content-iframe{width: 100%; height: 720px;} @media (max-width: 768px) {#content-iframe{max-width: 100%; min-height: 720px; height: auto;}} @media (max-width: 576px) {#content-iframe{m3 min readOnline Code FormatterCode formatter and code beautifier tools are essential tools for improving the overall look and maintainability of source code. These tools can automatically reformat code to comply with consistent styling guidelines such as indentation, spacing, and alignment, making code easier to read and underst3 min readHTML ValidatorAn HTML Validator is a tool that checks your HTML code for syntax errors and ensures it adheres to web standards. It helps improve website functionality, accessibility, and SEO by ensuring code quality. #iframe-html-validator {width: 100%; min-height: 700px; } @media (max-width: 768px) {#iframe-html2 min readJavaScript FormatterThis free Online Javascript Formatter/Beautifier allows you to edit, view, analyze, beautify, and format JavaScript codes. It's a simple and easy way to format and beautify Javascript code for collaboration. #content-iframe {width: 100%; height: 720px;} @media (max-width: 768px) {.article--viewer .a4 min read Like