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All Developer Tools

Browse our collection of free online developer tools. Choose a tool from the list below to get started.

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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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 Formatter

formatter

Format and beautify JSON data

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JSON Minify

formatter

Minify JSON by removing whitespace

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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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Time to Cron Converter

cron

Convert human-readable schedules to cron expressions

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Color Picker

color

Pick colors and convert between formats

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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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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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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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PNG to ICO Converter

converter

Convert PNG images to ICO format

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PNG to ICNS

converter

Create macOS app icons from PNG files

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Quick Data Visualization

visualization

Instantly visualize CSV or JSON data with automatic chart generation

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Flowchart & Diagram Maker

visualization

Create flowcharts and diagrams from text (Mermaid)

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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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Lorem Ipsum Generator

generator

Generate placeholder text

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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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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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JSON Path Finder

utility

Extract values using JSONPath expressions

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JSON Schema Validator

validator

Validate JSON against a schema

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JSON Merge

utility

Merge multiple JSON objects

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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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CSV to YAML Converter

converter

Convert CSV data to YAML

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YAML to CSV Converter

converter

Convert YAML data to CSV

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CSV Formatter

formatter

Format and normalize CSV data

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CSV Validator

validator

Validate CSV structure and parsing errors

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JSON to XML Converter

converter

Convert JSON data to XML format

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XML to JSON Converter

converter

Convert XML documents to JSON

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TOML to JSON Converter

converter

Convert TOML configuration to JSON

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JSON to TOML Converter

converter

Convert JSON data to TOML

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SQL Formatter

code

Format and beautify SQL queries

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XML Formatter

code

Format and validate XML documents

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XML Validator

validator

Validate XML syntax and well-formedness

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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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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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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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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 social and web banner images from PNG files

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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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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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Kubernetes Spec Compare

utility

Compare Kubernetes API specifications across different versions

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Need help choosing?

Browse practical guides that walk through real debugging sessions and show which tools to use at each step.

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