Developer Tools Collection | Online Utilities for Developers

Multi-Format Data Converter

TOON

LLM

Convert between JSON, YAML, XML, TOML, CSV, TSV, INI, BSON, NDJSON, SQL, and MessagePack formats

Format JSON and convert between JSON strings and objects

YAML

XML

JSON Parser & Formatter

Format

Convert between YAML and JSON formats with validation

YAML to JSON Converter

YAML

Convert between XML and JSON formats with validation

XML to JSON Converter

XML

SQL to JSON/CSV Converter

Convert SQL query results to JSON/CSV, generate INSERT statements from JSON/CSV, and create table schemas. Support for MySQL, PostgreSQL, SQLite.

SQL

Markdown to HTML Converter

CSV

Convert between Markdown and HTML formats

Markdown

HTML

TSV to JSON/CSV Converter

Convert between TSV and JSON/CSV formats

TSV

INI to JSON/YAML Converter

CSV

Convert between INI and JSON/YAML formats

Convert text case, encoding and format and change casing of text

Convert CSV data to JSON format

Convert Unix timestamps to human-readable dates and vice versa with support for multiple formats

Convert between bits, bytes, KB, MB, GB, TB and other data storage units

Convert between RGB, HEX, HSL, and CMYK color formats with real-time preview

Color

RGB

HEX

Generators

Generate various types of data and identifiers

UUID Generator

Generate UUID v1, v4 and other variants

Generate secure passwords with custom rules

Generate placeholder text for designs

Generate color palettes and schemes

Generate SEO-optimized meta tags for better search engine visibility and social media sharing

Generate robots.txt files to control search engine crawling with sitemap URLs and user-agent rules

Robots.txt

SEO

Crawling

Certificate Generator

Create professional certificates for completion, appreciation, and more

Certificate

Generator

PDF

Testers & Validators

Test and validate various data formats

Regex Tester

Test regular expressions with live matching

Validate JSON syntax, structure and minfied the json

Test URL validity and structure

Test and validate cron expressions

Cron

Schedule

Test

Text Convertors

Transform and manipulate text in creative and coding ways

Case Converter

Convert between camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE

camelCase

snake_case

kebab-case

Text Reverser & Zigzag

Reverse text, create zigzag patterns, and other text manipulations

Reverse

Zigzag

Pattern

ROT13 & Caesar Cipher

Encode and decode text using ROT13 and Caesar cipher with custom shifts

ROT13

Caesar

Cipher

Text Repeater & Duplicator

Repeat text multiple times with custom separators and patterns

Repeat

Duplicate

Pattern

Morse Code Translator

Convert text to Morse code and vice versa with audio playback

Morse

Code

Audio

Leet Speak (1337) Converter

Convert text to leet speak (1337) and back to normal text

Translate text to Pig Latin and back to English

Pig Latin

Language

Fun

Upside Down Text Generator

Flip text upside down using Unicode characters

Create creepy glitched text with combining characters

Translate words or phrases into sequences of emojis for fun messages

Convert images or text into ASCII art for plain text environments

ASCII

Art

Generator

Difference Checker

Compare and find differences between data

Text Diff

Compare two text blocks and highlight differences

Compare two images and visualize differences

JavaScript Formatter & Beautifier

Compare

Visual

Minify Tools

Minify or beautify code in various languages

Minify or beautify JavaScript code with advanced formatting options

Minify or beautify CSS stylesheets

Minify or beautify HTML markup

Format and beautify SQL queries with support for multiple dialects including MySQL, PostgreSQL, SQL Server, and Oracle

SQL

Format

Beautify

Format and Minfied the JSON

Validate JSON syntax and structure and minfied the json

Multi-Language Code Formatter

Validate

Syntax

Beautify and format Python, Go, and Java code snippets

Python

Java

Encoders & Decoders

Encode and decode various data formats

Image to Base64/Binary Converter

Convert images to/from Base64 and binary with live preview and download support

Electronics & Number System Converter

Base64

Binary

Convert between Base64, Base32, Binary, Decimal, Hexadecimal, Octal, BCD, Gray Code, Excess-3, ASCII, Unicode, UTF-8 and more. Perfect for electronics, computer science, and programming.

Base64

Base32

Binary

Base64 Encoder/Decoder

Encode and decode Base64 strings

Encode and decode URL components

Decode and inspect JWT tokens

Generate MD5, SHA1, SHA256 hashes

Generate MD5 hashes for text and files with verification

MD5

SHA

Hashing & Checksums

Generate and verify cryptographic hashes and checksums

MD5 Hash Generator

Generate SHA-1 hashes for text and files

SHA-1

Generate SHA-256 hashes for text and files with high security

Checksum

SHA-256 Hash Generator

SHA-256

Generate SHA-512 hashes for maximum security applications

Checksum

SHA-512 Hash Generator

Generate HMAC (Hash-based Message Authentication Code) with custom keys

Generate CRC32 checksums for data integrity verification

Verify and compare hash values for file integrity checking

Calculate multiple hash types for uploaded files simultaneously

File

Generate bcrypt hashes for secure password storage

Multiple

Bcrypt Hash Generator

Bcrypt

Password

Security

Argon2 Hash Generator

Generate Argon2 hashes for modern password security

Argon2

Password

Security

Encryption & Decryption

Encrypt and decrypt data using various cryptographic algorithms

AES Encryption/Decryption

Encrypt and decrypt text using AES (Advanced Encryption Standard) with multiple modes

AES

Encryption

Decryption

RSA Encryption/Decryption

Encrypt and decrypt text using RSA public-key cryptography

Encrypt and decrypt text using DES and Triple DES algorithms

Encrypt and decrypt text using the Blowfish symmetric cipher

Encrypt and decrypt text using the classic Caesar cipher with custom shifts

Encrypt and decrypt text using the Vigenère polyalphabetic cipher

Vigenère

Polyalphabetic

Cipher

Password Encryption Tool

Encrypt passwords using various algorithms for secure storage

Password

Encryption

Secure

PGP Encryption/Decryption

Encrypt and decrypt messages using PGP (Pretty Good Privacy)

Generate and sign JWT tokens with custom claims and algorithms

Encrypt and decrypt data using Fernet symmetric encryption

Fernet

Symmetric

Encryption

Digital Signatures

Create and verify digital signatures for data authentication

Digital Signature

Create and verify digital signatures for data integrity and authentication

Digital Signature

Authentication

Integrity

ElGamal Digital Signature

Create and verify digital signatures using the ElGamal algorithm

ElGamal

Digital Signature

Public Key

Crypto Simulators

Interactive simulators for various cryptographic protocols and algorithms

Key Exchange Simulator

Simulate secure key exchange protocols like Diffie-Hellman

Key Exchange

Diffie-Hellman

Protocol

RSA Algorithm Simulator

Interactive simulation of RSA key generation, encryption and decryption process

RSA

Asymmetric

Simulation

Hashing Algorithm Visualizer

Visualize how different hashing algorithms transform input data

Simulate the operations of block ciphers like AES and DES

Visualization

Educational

Block Cipher Simulator

Block Cipher

AES

DES

Random Number Generator Simulator

Visualize and compare different cryptographic random number generation algorithms

Interactive blockchain playground to understand mining, hashes, and immutability

Blockchain

Mining

Sorting Algorithm Visualizer

Algorithm Visualizers

Interactive visualizations for computer science algorithms and concepts

Visualize and compare sorting algorithms like Bubble Sort, Merge Sort, and Quick Sort

Sorting

Algorithm

Visualizer

Event Loop Visualizer

Visualize the JavaScript Event Loop, Call Stack, and Callback Queues

Event Loop

JavaScript

Async

Cryptocurrency Tools

Real-time cryptocurrency converters and tracking tools

Crypto Converter

Convert between different cryptocurrencies and fiat currencies with real-time rates

Track live prices of top cryptocurrencies

Crypto

Price

Track

Crypto ROI Calculator

Calculate your return on investment for crypto assets

View top cryptocurrencies by market capitalization

Crypto

Market Cap

Ranking

QR Code & Barcode Generators

Generate QR codes and barcodes for various purposes

QR Code Generator

Generate QR codes for text, URLs, WiFi, contacts, and more with customization options

Generate various barcode formats including Code128, Code39, EAN, UPC, and more

Generate QR codes for WiFi network sharing with password encryption

Generate QR codes for contact information sharing (vCard format)

Generate multiple QR codes at once from CSV or text list

Bulk

Multiple

QR Code

Image Processing Tools

Manipulate and process images with various operations

Image Format Converter

Convert images between different formats (PNG, JPG, WebP, GIF, BMP, TIFF)

Resize images with custom dimensions, aspect ratio lock, and quality settings

Compress images to reduce file size while maintaining quality

View and extract metadata information from images (EXIF, dimensions, etc.)

Compress

Optimize

Image Metadata Viewer

Extract dominant colors and generate color palettes from images

Metadata

EXIF

Color Palette Extractor