Development Tools

A complete suite of free online developer tools. Format code, parse JSON, convert strings, and minify assets right in your browser. No installation or registration required — just fast, secure tools designed to make your coding workflow more efficient.

Most Popular Tools

The tools users reach for most in this category

#1
O

Online Code Formatter

Universal code beautifier for Python, Java, Swift, JavaScript, C#, HTML, and CSS. Clean up messy code instantly.

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#2
L

LaTeX Formatter

Auto-indent LaTeX source code. Clean up environments, equations, and tables for Overleaf or local editing.

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#3
C

C# Datetime Formatter

Generate C# DateTime format strings instantly. Test standard specifiers (d, g, O) and custom patterns online.

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#4
J

JSON Formatter

Beautify and validate JSON data.

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#5
J

JSON Validator

Validate and debug JSON data.

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#6
X

XML Formatter

Format and beautify XML code.

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#1
O

Online Code Formatter

Universal code beautifier for Python, Java, Swift, JavaScript, C#, HTML, and CSS. Clean up messy code instantly.

Try Now
#2
L

LaTeX Formatter

Auto-indent LaTeX source code. Clean up environments, equations, and tables for Overleaf or local editing.

Try Now
#3
C

C# Datetime Formatter

Generate C# DateTime format strings instantly. Test standard specifiers (d, g, O) and custom patterns online.

Try Now
#4
J

JSON Formatter

Beautify and validate JSON data.

Try Now
#5
J

JSON Validator

Validate and debug JSON data.

Try Now
#6
X

XML Formatter

Format and beautify XML code.

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Browse by subcategory
8 subcategories
Code Formatters & BeautifiersJSON ToolsHTML ToolsCSS ToolsEncoders, Decoders & ConvertersXML ToolsMinifiers & ObfuscatorsGenerators & Utilities

Code Formatters & Beautifiers

Format and beautify source code for cleaner, more readable output.

Avro Formatter

Format Apache Avro schemas for better readability and validation.

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C Formatter and Beautifier

Format and beautify C/C++ code with customizable options.

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C# Datetime Formatter

Generate C# DateTime format strings instantly. Test standard specifiers (d, g, O) and custom patterns online.

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GraphQL Formatter

Format and beautify your GraphQL queries and schemas. Free online tool to clean up messy GraphQL code.

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Java Formatter and Beautifier

Format and beautify Java code with proper indentation.

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JavaScript Beautifier

Beautify, format, and unminify your JavaScript code. Free online tool to improve JS readability and structure.

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View all Code Formatters & Beautifiers

JSON Tools

Parse, convert, compare, and reshape JSON payloads and schemas.

CSV to JSON Converter

Convert CSV files or text into valid JSON arrays. Smart parsing with header detection.

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Excel to JSON Converter

Convert Excel spreadsheets and CSV files to JSON format.

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JSON Compare

Compare two JSON objects side-by-side and spot differences instantly. Free online JSON diff viewer for developers.

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JSON Decode

Decode escaped JSON strings, unescape characters, and format the result.

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JSON Deserialize Online

Deserialize escaped JSON strings back into objects.

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JSON Encoder

Encode JSON strings and escape special characters for embedding in code or URLs.

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View all JSON Tools

HTML Tools

Build, clean, and convert HTML markup for websites and emails.

HTML Button Generator

Generate custom HTML buttons with CSS styling.

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HTML Decode String

Decode HTML entities online.

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HTML Formatter

This free HTML formatter lets you beautify HTML files. Paste the content of your HTML file and the tool automatically formats it.

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HTML Marquee Generator

Generate nostalgic scrolling text with customizable speed and colors.

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HTML Pretty Print

Format specific HTML snippets to be more readable.

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HTML Table Maker

Create clean HTML tables with a visual spreadsheet editor. Customize rows, columns, and headers.

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View all HTML Tools

CSS Tools

Format, convert, and tune CSS, SCSS, and related styling helpers.

CSS Beautifier

Beautify and format CSS code for better readability and structure.

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CSS Formatter

Format CSS code for better readability.

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CSS to SASS Converter

Convert plain CSS to SASS or SCSS format.

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CSS Validator

Validate CSS for syntax errors and style issues.

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LESS to CSS Converter

Convert LESS preprocessor code to plain CSS.

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REM to PX Converter

Convert CSS REM units to Pixels (PX) and vice-versa instantly.

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Encoders, Decoders & Converters

Encode, decode, and convert developer-facing strings and values.

Base64 Encoder Decoder

Encode and decode text and files to/from Base64 format. Fast and secure.

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Base64 to ZPL Converter

Convert Base64 images to ZPL code for Zebra label printers.

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Binary to IP Converter

Convert binary to IPv4 addresses and IP to binary.

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Binary to Text Converter

Convert binary code to readable ASCII/UTF-8 text.

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Bytes to ASCII Converter

Convert byte arrays to ASCII text and vice versa.

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CSV to Base64 Converter

Convert CSV files to Base64 encoded strings and decode back.

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View all Encoders, Decoders & Converters

XML Tools

Validate, format, diff, and inspect XML documents and XPath data.

Online XML Viewer

View and inspect XML data in a clean, readable tree format.

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XML Diff

Compare two XML documents and highlight differences instantly.

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XML Editor and Viewer

Edit and view XML files with syntax highlighting and tree view.

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XML Escape

Escape and unescape XML special characters (&, <, >, ", ').

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XML Formatter

Format and beautify XML code.

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XML Pretty Printer

Beautify and format XML code with clean indentation and structure.

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View all XML Tools

Minifiers & Obfuscators

Shrink or obfuscate source before shipping it to production.

CSS Minifier

Minify CSS code to reduce file size.

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HTML Minifier

Compress HTML code for production use.

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JavaScript Obfuscator

Obfuscate JavaScript code to protect it from copying.

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JS Minifier

Minify JavaScript code for production.

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JSON Minifier

Minify and format JSON data. Remove whitespace, validate syntax, and reduce file size.

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SQL Minifier

Compress SQL queries by removing whitespace and comments.

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View all Minifiers & Obfuscators

Generators & Utilities

Everyday developer helpers for previews, generators, and parsing tasks.

Code to Image Converter

Transform code snippets into beautiful, shareable images. Perfect for social media and documentation.

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Crontab Generator

Build cron expressions visually with presets and explanations.

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Discord Timestamp Generator

Create Discord timestamps with timezone support. Generate relative time and date formats.

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Fake Code Generator

Generate realistic looking fake code snippets.

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Gzip Decompress Online

Decompress gzip-encoded data instantly online.

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Hacker Typer

Fake terminal where smashing the keyboard reveals realistic-looking code for demos and fun.

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View all Generators & Utilities

More Tools

Additional tools in this category that are not assigned to an active subcategory page.

Diff Checker

Compare two text files or blocks of code to see the differences (additions, deletions, and changes).

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Regex Generator

Build regular expressions visually without memorizing syntax. Create patterns for validation and search.

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Regex Tester

Test and debug regular expressions with real-time match highlighting.

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YAML Validator

Validate YAML syntax and format YAML files with proper indentation.

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Frequently Asked Questions

Yes, all our development tools are 100% free with no usage limits or hidden fees.
Absolutely. The vast majority of our tools process your data entirely within your browser using client-side JavaScript. Your code or sensitive data is never uploaded to our servers unless specifically noted.
No account or registration is required to use any tool on CodeItBro.
Our tools are tested and work smoothly on all modern browsers including Chrome, Firefox, Safari, and Edge.
Yes, our tools are fully responsive and can be accessed from any smartphone or tablet.

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