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Developer Tools

Free JSON formatter, code beautifier, Base64 encoder, regex tester, HTML minifier & developer utilities

12 tools

HTML Minifier

Minify HTML code to reduce file size and improve page load speed

htmlminifierdeveloper

Use HTML Minifier

CSS Minifier

Minify CSS code to reduce file size and speed up website rendering

cssminifierdeveloper

Use CSS Minifier

JavaScript Minifier

Minify JavaScript code to reduce file size and improve runtime performance

javascriptminifierdeveloper

Use JavaScript Minifier

JSON Formatter

Format, validate, and beautify JSON data with custom indentation

jsonformatterdeveloper

Use JSON Formatter

JSON to CSV Converter

Convert JSON arrays to CSV format for spreadsheets and data analysis

jsoncsvconverter

Use JSON to CSV Converter

CSV to JSON Converter

Convert CSV data to structured JSON arrays for APIs and apps

csvjsonconverter

Use CSV to JSON Converter

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 strings back to plain text

base64encoderdecoder

Use Base64 Encoder/Decoder

URL Encoder/Decoder

Encode special characters in URLs or decode percent-encoded strings

urlencoderdecoder

Use URL Encoder/Decoder

Markdown to HTML Converter

Convert Markdown text to clean, semantic HTML markup instantly

markdownhtmlconverter

Use Markdown to HTML Converter

Diagram Studio

Build interactive flowcharts, sequence diagrams, and ER diagrams online

diagramflowchartsequence

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Code Difference Checker

Compare two code snippets and highlight every difference visually

diffcomparecode

Use Code Difference Checker

Framer to HTML

Convert any public Framer site into clean, production-ready HTML, CSS & JS

Use Framer to HTML

About Developer Tools

Developer tools streamline your coding workflow with instant formatters, validators, encoders, and minifiers — all running in your browser with no setup required. Stop wasting time on tedious manual tasks and ship better code faster.

Why Use These Developer Tools?

Format and beautify JSON, HTML, CSS, and JavaScript with a single click
Encode and decode Base64, URL, and HTML entities instantly
Test and debug regular expressions with live match highlighting
Minify code to reduce file sizes and improve page load performance