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Free Online Developer Tools

A comprehensive collection of online tools designed for developers, DevOps engineers, and data professionals. Convert, validate, format, and manipulate data with our growing suite of developer utilities including JSON, YAML, Cron expressions, regular expressions, encoding, hashing, and more.

Popular Tools

JSON Validator

validator

Validate JSON syntax and structure

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Compare and Diff

utility

Compare and find differences between two text objects

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YAML Formatter

formatter

Format and beautify YAML data

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Cron to Time Converter

cron

Convert cron expressions to human-readable times

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Regex Tester

regex

Test and debug regular expressions

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Base64 Encode

encoding

Encode text or data to Base64

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SHA-256 Hash Generator

hash

Generate SHA-256 hash from text

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PNG to ICO Converter

converter

Convert PNG images to ICO format

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Quick Data Visualization

visualization

Instantly visualize CSV or JSON data with automatic chart generation

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All Tools

View all 57 developer tools

Tools by Category

Converters

JSON to YAML Converter

converter

Convert JSON to YAML format instantly

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YAML to JSON Converter

converter

Convert YAML to JSON format instantly

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PNG to ICO Converter

converter

Convert PNG images to ICO format

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PNG to ICNS Converter

converter

Convert PNG images to ICNS format

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CSV to JSON Converter

converter

Convert CSV data to JSON format

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JSON to CSV Converter

converter

Convert JSON data to CSV format

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Validators

JSON Validator

validator

Validate JSON syntax and structure

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YAML Validator

validator

Validate YAML syntax and structure

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JSON Schema Validator

validator

Validate JSON against a schema

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Formatters

JSON Formatter

formatter

Format and beautify JSON data

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JSON Minify

formatter

Minify JSON by removing whitespace

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YAML Formatter

formatter

Format and beautify YAML data

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Code Tools

SQL Formatter

code

Format and beautify SQL queries

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XML Formatter

code

Format and validate XML documents

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JavaScript Minifier

code

Minify JavaScript code to reduce file size

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CSS Minifier

code

Minify CSS code to reduce file size

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HTML Minifier

code

Minify HTML code to reduce file size

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Generators

Lorem Ipsum Generator

generator

Generate placeholder text

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UUID Generator

generator

Generate UUIDs (v1 and v4)

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QR Code Generator

generator

Generate QR codes from text or URLs

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Password Generator

generator

Generate secure random passwords

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Date & Time

Timestamp to Date

date

Convert Unix timestamps to human-readable dates

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Date to Timestamp

date

Convert dates to Unix timestamps

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Timezone Converter

date

Convert times between different timezones

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Date Calculator

date

Calculate date differences and add/subtract time

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Network Tools

DNS Lookup

network

Query DNS records for any domain (A, AAAA, MX, TXT, CNAME, NS, SOA)

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Request Path Simulator

network

Simulate complete request path from URL through DNS resolution, hosting provider redirects, and HTTP redirects

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Image Tools

Image Resizer

image

Resize images to specific dimensions

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Image Compressor

image

Compress images to reduce file size

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SVG Optimizer

image

Optimize SVG files

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PNG to Banner

image

Create banner images from PNG without stretching

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Cron Tools

Cron to Time Converter

cron

Convert cron expressions to human-readable times

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Time to Cron Converter

cron

Convert human-readable schedules to cron expressions

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Utilities

Compare and Diff

utility

Compare and find differences between two text objects

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Text Case Converter

utility

Convert text between different case formats

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String Length Counter

utility

Count characters, words, lines, and paragraphs

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JSON Path Finder

utility

Extract values using JSONPath expressions

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JSON Merge

utility

Merge multiple JSON objects

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URL Parser

utility

Parse URLs into their components

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Query String Parser

utility

Parse and analyze query strings

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Regex Tools

Regex Tester

regex

Test and debug regular expressions

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Encoding Tools

Base64 Encode

encoding

Encode text or data to Base64

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Base64 Decode

encoding

Decode Base64 to text or data

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URL Encode

encoding

Encode text for use in URLs

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URL Decode

encoding

Decode URL encoded strings

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HTML Encode

encoding

Encode text to HTML entities

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HTML Decode

encoding

Decode HTML entities to text

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JWT Decoder

encoding

Decode and inspect JWT tokens

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Unicode Encoder

encoding

Encode text to Unicode escape sequences

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Unicode Decoder

encoding

Decode Unicode escape sequences to text

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Hash Tools

MD5 Hash Generator

hash

Generate MD5 hash from text

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SHA-256 Hash Generator

hash

Generate SHA-256 hash from text

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SHA-1 Hash Generator

hash

Generate SHA-1 hash from text

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SHA-512 Hash Generator

hash

Generate SHA-512 hash from text

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HMAC Generator

hash

Generate HMAC signatures

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Color Tools

Color Picker

color

Pick colors and convert between formats

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Visualization

Quick Data Visualization

visualization

Instantly visualize CSV or JSON data with automatic chart generation

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What We Offer

Our platform provides over 57 specialized tools organized into multiple categories to meet your development needs:

Data Converters

Seamlessly convert between JSON and YAML formats with real-time bidirectional conversion, or convert PNG images to ICO and ICNS icon formats

Validators & Formatters

Validate syntax and beautify your code with proper formatting and indentation

Cron & Scheduling

Convert cron expressions to human-readable schedules and understand execution times

Encoding & Decoding

Encode and decode Base64, URL encoding, and other common formats

Hash Generators

Generate MD5, SHA-256, and other cryptographic hash values

Regex & Utilities

Test regular expressions and use various developer utilities

Data Visualization

Create interactive charts and graphs from CSV or JSON data with shareable links

Why Use Our Tools

Comprehensive

Our platform offers a wide range of developer tools covering multiple categories. From data conversion to validation, formatting, encoding, and more - we have the tools you need in one convenient location.

Fast & Reliable

Get instant results with real-time processing. Our tools are optimized for performance and work seamlessly across all modern browsers.

Accessible

Our tools are designed to be accessible to developers of all levels. No registration required, no data collection, and straightforward usage.

Easy to Use

Intuitive interfaces with syntax highlighting, clear error messages, and helpful tooltips make our tools accessible to developers of all skill levels.

How It Works

Using our tools is simple and straightforward. Just select the tool you need, paste or type your data, and get instant results. Most tools provide real-time conversion and validation, so you can see changes as you type.

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