Home All ToolsCode Tools

Free Code Tools Online (Format, Minify, Validate)

Browse 49 developer utilities for formatting, minification, validation, encoding, decoding, conversion, and generation across supported code and data formats.

✨ Formatters & Minifiers

Format, beautify, and minify code

📦 Code Minifier

Minify code to reduce file size

1 option

✨ Code Beautifier

Format and beautify code

2 options

{ } JSON Formatter

Format and validate JSON

1 option

🏷️ HTML Formatter

Format and beautify HTML code

1 option

📦 HTML Minifier

Minify HTML for web performance

🎨 CSS Formatter

Format and beautify CSS code

1 option

📦 CSS Minifier

Minify CSS for web performance

📋 XML Formatter

Format and beautify XML code

1 option

📦 XML Minifier

Minify XML to reduce file size

💾 SQL Formatter

Format SQL queries for readability

1 option

🔄 Converters & Encoders

Convert between formats and encoding

🔒 Base64 Encode

Encode text to Base64

🔓 Base64 Decode

Decode Base64 to text

🔗 URL Encode

Encode text for URLs

🔗 URL Decode

Decode URL-encoded text

Aa Case Converter

Convert text case format

1 option

📊 JSON to CSV

Convert JSON array to CSV format

📊 CSV to JSON

Convert CSV data to JSON

1 option

📁 JSON to XML

Convert JSON to XML format

📁 XML to JSON

Convert XML to JSON format

📝 JSON to YAML

Convert JSON to YAML format

📝 YAML to JSON

Convert YAML to JSON format

🔤 HTML Encode

Encode text to HTML entities

🔤 HTML Decode

Decode HTML entities to text

🔗 Slug Generator

Generate URL-friendly slugs from text

🔒 Base32 Encode

Encode text to Base32 format

🔓 Base32 Decode

Decode Base32 to text

📝 Markdown to HTML

Convert Markdown to HTML

🔀 Escape/Unescape

Escape or unescape special characters

2 options

🔢 Number Base Converter

Convert between binary, decimal, hex, octal

2 options

🌡️ Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin

2 options

⏱️ Unix Timestamp Converter

Convert between Unix timestamps and dates

1 option

📊 CSV ↔ JSON Converter

Convert between CSV and JSON formats

1 option

✓ Validators & Parsers

Validate and parse different formats

✓ JSON Validator

Validate JSON syntax

✓ HTML Validator

Validate HTML markup syntax

✓ XML Validator

Validate XML structure and syntax

✓ YAML Validator

Validate YAML formatting

✓ Markdown Validator

Validate Markdown syntax

🔐 JWT Decoder

Decode and inspect JWT tokens

🔍 Regex Tester

Test and validate regular expressions

1 option

📋 Text Diff Checker

Compare and highlight differences between texts

⏰ Cron Expression Generator

Generate and validate cron expressions

✓ JSON Schema Validator

Validate JSON against a schema

🎲 Generators & Utilities

Generate IDs, hashes, and utilities

🆔 UUID Generator

Generate unique UUIDs

2 options

#️⃣ Hash Generator

Generate hash digests

1 option

🔐 Password Generator

Generate secure random passwords

6 options

📄 Lorem Ipsum Generator

Generate placeholder text

2 options

🎲 Random String Generator

Generate random alphanumeric strings

3 options

🎨 Color Converter

Convert between color formats (HEX ↔ RGB)

1 option

📲 QR Code Generator

Generate QR codes from text or URLs

1 option

Tools Available

Developer Utilities for Specific Text Transformations

Use focused tools to minify JavaScript or CSS, format JSON, or validate HTML. Formatting changes presentation, validation checks syntax rules, and encoding is not encryption.

✓ No Account Required

Choose a formatter, validator, minifier, encoder, decoder, converter, or generator based on the output you need.

✓ No Installation

Open the tools through a modern web browser without installing separate development software. Tool input is processed through the service, and practical behavior can vary by browser, device, input size, and selected tool.

✓ Processing Time Varies

Runtime depends on input length and operation. Validation identifies syntax problems but does not prove application correctness or security.

✓ Server-Side Processing

Tool input is sent over HTTPS to the processing API. Remove secrets, tokens, private keys, passwords, and sensitive customer data first.

Popular Developer Tools

Quick access to our most-used code tools:

→Code Minifier - Reduce file size →Code Beautifier - Format code →JSON Formatter - Pretty-print JSON →Base64 Encoder - Encode text →UUID Generator - Create unique IDs

How to Use Our Code Tools

It's simple and intuitive. Select the tool you need from our collection—try minify code, format JSON, or any other tool. Paste or provide the supported input, then start processing. The selected tool sends its input to the processing service and returns the available result. Review the output before using it, especially for validation, conversion, minification, encoding, or generated values.

Frequently Asked Questions

Are all code tools really free?▼

The code utilities are available without Premium AI Studio credits. Individual tools may apply input-size or rate limits.

What programming languages are supported?▼

Our code tools support JavaScript, HTML, CSS, JSON, XML, YAML, SQL, Base64, and many more formats. You can format, minify, validate, encode, decode, and convert between different code formats with specialized tools for each language.

Do I need to sign up or install anything?▼

The current Code Tools utilities do not require account creation. Select a supported tool, provide its required input, and start processing. Processing time depends on the tool, input size, and current service availability.

Is my code safe when using these tools?▼

Input is sent over HTTPS to the tool service. Do not submit production secrets, API keys, access tokens, passwords, private keys, or sensitive customer data.

Can I use the code tools on mobile?▼

The tools can be opened in modern desktop and mobile browsers with JavaScript enabled. Practical behavior can vary by browser, device resources, input size, and the selected tool.

What file sizes can the tools handle?▼

Our code tools can handle code up to 100MB depending on the tool and your internet connection. Large files may take longer to process, but our tools handle them efficiently without losing quality or accuracy.