Developer Tools

Essential tools for developers: JSON formatter, encoder/decoder, and more.

37 tools in this category

ASCII Converter

Convert text to ASCII codes or ASCII codes back to text.

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 to text. Fast, secure, and private.

Binary Calculator

Add, subtract, multiply, or divide binary numbers.

Color Converter

Convert HEX colors to RGB and HSL with a live preview.

Cron Expression Generator

Build cron expressions with fields and common schedule presets.

CSS Minifier

Minify CSS code in your browser to reduce file size and clean up stylesheets.

CSS Unit Converter

Convert CSS px, rem, em, percent, vw, and vh values quickly.

CSV to JSON Converter

Convert CSV rows into formatted JSON locally.

CSV to Table Viewer

Paste CSV data and view it as a clean table instantly.

Curl To Fetch Converter

Convert common cURL commands into JavaScript fetch snippets.

Hash Generator

Generate SHA hashes from text using your browser crypto API.

Hex Calculator

Calculate with hexadecimal numbers and see decimal equivalents.

HTML Entity Encoder/Decoder

Encode and decode HTML entities for safe web text and markup.

HTML Formatter

Format messy HTML into readable, indented code directly in your browser.

HTML Minifier

Minify HTML by removing comments and extra whitespace in your browser.

Image Compressor

Compress JPG, PNG, and WebP images in your browser with quality and resize controls.

Image Resizer

Resize images to exact dimensions in your browser and download the result.

JavaScript Minifier

Minify JavaScript snippets in your browser by removing comments and extra whitespace.

JSON Formatter

Format, minify, and validate JSON data. See clear error messages with line numbers.

JSON to CSV Converter

Convert JSON arrays into CSV files in your browser.

Json To XML Converter

Convert JSON objects into simple XML in your browser.

JSON to YAML Converter

Convert JSON data into a readable YAML-style format.

JSON Validator

Validate JSON and find syntax errors instantly in your browser.

JWT Decoder

Decode JSON Web Tokens locally in your browser without sending tokens to a server.

JWT Validator

Decode a JWT token and inspect its header, payload, and signature presence.

Markdown Previewer

Preview Markdown and copy clean HTML in your browser.

Meta Tag Generator

Generate title, description, canonical, Open Graph, and Twitter tags.

Regex Tester

Test regular expressions against sample text and view matches.

Robots.txt Generator

Create a simple robots.txt file with sitemap and disallow rules.

SHA256 Hash Generator

Generate a SHA-256 hash from text using your browser.

SHA512 Hash Generator

Generate a SHA-512 hash from text using your browser.

SQL Formatter

Format simple SQL queries for easier reading.

Timestamp Converter

Convert Unix timestamps to readable dates and convert dates back to Unix time.

URL Encoder/Decoder

Encode or decode URLs and text for safe web transmission.

UUID Generator

Generate secure random UUID v4 identifiers in your browser.

XML Formatter

Format and clean XML markup for easier reading and debugging.

YAML to JSON Converter

Convert simple YAML key-value content into JSON.

Popular Developer Tools tools

Start with these frequently used tools in this category, or browse the full list above.

ASCII Converter — Convert text to ASCII codes or ASCII codes back to text.
Base64 Encoder/Decoder — Encode text to Base64 or decode Base64 to text. Fast, secure, and private.
Binary Calculator — Add, subtract, multiply, or divide binary numbers.
Color Converter — Convert HEX colors to RGB and HSL with a live preview.
Cron Expression Generator — Build cron expressions with fields and common schedule presets.
CSS Minifier — Minify CSS code in your browser to reduce file size and clean up stylesheets.
CSS Unit Converter — Convert CSS px, rem, em, percent, vw, and vh values quickly.
CSV to JSON Converter — Convert CSV rows into formatted JSON locally.