Developer Tools

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

12 tools

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HTML Minifier

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

htmlminifierdeveloper
Use HTML Minifier
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CSS Minifier

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

cssminifierdeveloper
Use CSS Minifier
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JavaScript Minifier

Minify JavaScript code to reduce file size and improve runtime performance

javascriptminifierdeveloper
Use JavaScript Minifier
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JSON Formatter

Format, validate, and beautify JSON data with custom indentation

jsonformatterdeveloper
Use JSON Formatter
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JSON to CSV Converter

Convert JSON arrays to CSV format for spreadsheets and data analysis

jsoncsvconverter
Use JSON to CSV Converter
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CSV to JSON Converter

Convert CSV data to structured JSON arrays for APIs and apps

csvjsonconverter
Use CSV to JSON Converter
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Base64 Encoder/Decoder

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

base64encoderdecoder
Use Base64 Encoder/Decoder
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URL Encoder/Decoder

Encode special characters in URLs or decode percent-encoded strings

urlencoderdecoder
Use URL Encoder/Decoder
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Markdown to HTML Converter

Convert Markdown text to clean, semantic HTML markup instantly

markdownhtmlconverter
Use Markdown to HTML Converter
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Diagram Studio

Build interactive flowcharts, sequence diagrams, and ER diagrams online

diagramflowchartsequence
Use Diagram Studio
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Code Difference Checker

Compare two code snippets and highlight every difference visually

diffcomparecode
Use Code Difference Checker
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Framer to HTML

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

framerhtmlcss
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