Developer Workbench

One workspace. Every data format.

JSON, XML, YAML, JWT, Base64, HTML and URL — all in one unified toolkit.

Smart Input Detector

All Tools by Category

Formatters & Validators

Format, validate and beautify various data formats

JSON Formatter

Format, beautify, validate and minify JSON online

  • Format
  • Minify
  • Validate
  • Tree View
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XML Formatter

Pretty print XML, validate syntax, explore as tree

  • Format
  • Minify
  • Validate
  • Tree
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YAML Validator

Validate YAML syntax, convert YAML to JSON and back

  • Validate
  • YAML→JSON
  • JSON→YAML
  • Live Sync
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HTML Formatter

Beautify, minify and preview HTML with live rendering

  • Format
  • Minify
  • Validate
  • Preview
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SQL Formatter

Format and beautify SQL queries for MySQL, PostgreSQL, SQLite

  • Format
  • Minify
  • Syntax Color
  • Copy
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Encoders & Decoders

Encode, decode and transform text data

Base64 Encoder & Decoder

Encode and decode text or files to Base64 online

  • Encode
  • Decode
  • File Upload
  • Stats
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JWT Decoder

Decode JWT tokens — inspect header, payload and claims

  • Header
  • Payload
  • Claims
  • Expiry
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URL Encoder & Decoder

Encode, decode and parse URLs with query parameters

  • Encode
  • Decode
  • Parse
  • Batch
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String Escape

Escape and unescape strings for JSON, HTML, JavaScript

  • Escape
  • Unescape
  • JSON
  • HTML
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Converters

Convert between different value formats

Unix Timestamp Converter

Convert between epoch timestamps and readable dates

  • Unix Time
  • ISO 8601
  • Timezones
  • Now
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Color Converter

Convert HEX to RGB, HSL, HSV and CMYK colors online

  • HEX
  • RGB
  • HSL
  • Accessibility
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Case Converter

Convert text between camelCase, snake_case, PascalCase

  • camelCase
  • snake_case
  • PascalCase
  • CONSTANT
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Image to Base64

Convert images to Base64 data URIs and decode back

  • Encode
  • Decode
  • Preview
  • Copy
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Number Base Converter

Convert between binary, decimal, hex, and octal

  • Binary
  • Hex
  • Octal
  • Decimal
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Data Transformation

Convert between different data formats

JSON to CSV Converter

Convert JSON arrays to CSV files with custom delimiters

  • Convert
  • Custom Delimiter
  • Headers
  • Download
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CSV to JSON Converter

Parse CSV files and convert to JSON with type inference

  • Parse
  • Auto-detect
  • Type Inference
  • Preview
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JSON to Excel

Export JSON data to XLSX spreadsheets with formatting

  • Export
  • Multiple Sheets
  • Styling
  • Download
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Excel to JSON

Import XLSX files and convert to clean JSON output

  • Import
  • Sheet Select
  • Preview
  • Convert
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Text Tools

Powerful text processing and analysis tools

Regex Tester

Test regular expressions online with live matching

  • Test
  • Replace
  • Explain
  • Snippets
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Markdown Editor

Online markdown editor with live preview and export

  • Edit
  • Preview
  • Export
  • TOC
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Text Diff

Compare two texts and find differences side by side

  • Side-by-side
  • Inline
  • Stats
  • Copy
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Word & Character Counter

Count words, characters, sentences with reading time

  • Words
  • Characters
  • Sentences
  • Reading Time
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Slug Generator

Generate URL-friendly slugs from any text

  • Slugify
  • Unicode
  • Custom Separator
  • SEO
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Line Sorter & Dedupe

Sort lines A-Z, remove duplicates, reverse, shuffle

  • Sort A-Z
  • Dedupe
  • Reverse
  • By Length
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Find & Replace

Find and replace text with regex support

  • Regex
  • Case Sensitive
  • Whole Word
  • Count
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Generators

Generate UUIDs, passwords, hashes and other data

UUID Generator

Generate random UUIDs v1, v4, v5 with bulk support

  • v1
  • v4
  • v5
  • Bulk Gen
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Password Generator

Generate strong random passwords with custom rules

  • Random
  • Custom Length
  • Strength
  • Bulk
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Hash Generator

Generate MD5, SHA-256, SHA-512, bcrypt hashes online

  • MD5
  • SHA-256
  • SHA-512
  • bcrypt
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Lorem Ipsum Generator

Generate placeholder text by paragraphs or words

  • Paragraphs
  • Words
  • Sentences
  • Copy
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QR Code Generator

Create free QR codes from text or URLs, download PNG/SVG

  • Generate
  • Customize
  • Download
  • SVG/PNG
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Cron Expression Generator

Build cron expressions visually with next-run preview

  • Build
  • Parse
  • Explain
  • Next Runs
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JSON Intelligence

Advanced JSON analysis and comparison tools

JSON Diff

Compare two JSON objects and find differences online

  • Compare
  • Visual Diff
  • Patch
  • Merge
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JSON Size Analyzer

Analyze JSON payload structure and optimize size

  • Size
  • Depth
  • Stats
  • Optimization
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Security & Crypto

Encryption, HMAC signatures, and password analysis

HMAC Generator

Generate HMAC-SHA256/512 signatures with Web Crypto API

  • SHA-256
  • SHA-512
  • Hex
  • Base64
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Password Strength Checker

Analyze password entropy, crack time, and composition

  • Entropy
  • Crack Time
  • Composition
  • Tips
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Text Encryption

Encrypt and decrypt text with AES-256-GCM

  • AES-GCM
  • PBKDF2
  • Encrypt
  • Decrypt
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Random String Generator

Generate cryptographically secure random strings

  • Custom Charset
  • Prefix/Suffix
  • Bulk
  • Crypto
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API & Web Helpers

Tools for API development, testing, and debugging

cURL to Fetch

Convert cURL commands to JavaScript fetch API code

  • Headers
  • Body
  • Auth
  • Auto-detect
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Query String Builder

Build and parse URL query strings with encoding

  • Build
  • Parse
  • Encode
  • Toggle
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URL Parser

Break down URLs into protocol, host, path, params

  • Protocol
  • Host
  • Path
  • Params
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JSON Schema Generator

Generate JSON Schema Draft-07 from sample JSON

  • Draft-07
  • Auto-type
  • Nested
  • Required
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Mock API Generator

Generate realistic mock JSON data for testing

  • Names
  • Emails
  • Dates
  • Custom Fields
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HTTP Header Formatter

Parse raw HTTP headers to table and JSON

  • Parse
  • Table
  • JSON
  • DevTools
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AI & LLM Tools

Token counting, prompt tools, and cost estimation

AI Token Counter

Estimate GPT/Claude token count with cost calculation

  • GPT-4o
  • Claude
  • Cost
  • Words
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Prompt Formatter

Clean prompts, extract variables, format for APIs

  • Variables
  • Clean
  • JSON
  • API Format
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AI Cost Estimator

Calculate API costs for GPT-4, Claude, Gemini models

  • Per Request
  • Monthly
  • Compare
  • All Models
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Utilities

Quick-reference tools and developer helpers

HTTP Status Codes

Quick reference for all HTTP 1xx-5xx status codes

  • Search
  • 1xx-5xx
  • Descriptions
  • Categories
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Color Palette Generator

Generate harmonious color palettes from any color

  • Analogous
  • Complementary
  • Triadic
  • Export
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MIME Type Lookup

Find MIME types by file extension or content type

  • Search
  • Extensions
  • Categories
  • Copy
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