Developer Tools

Format, validate, and minify JSON data

Format and beautify HTML code

Format and beautify CSS stylesheets

Format and beautify SQL queries

Format and beautify XML documents

Format and beautify JavaScript code

Preview and convert Markdown to HTML

Fix Python indentation and formatting

Encode or decode Base64 strings

Encode or decode URL strings

Encode or decode HTML entities

Convert between text and hexadecimal

Hash and verify passwords with bcrypt

Convert between Unix timestamps and dates

Convert text between different cases

Convert between color formats (HEX, RGB, HSL)

Convert between binary, octal, decimal, and hex

Convert between YAML and JSON formats

Convert between CSV and JSON formats

Generate TypeScript types from JSON

Convert between Markdown and HTML

Convert between different units of measurement

Convert between JSON and TOON (Token-Oriented Object Notation)

Convert between YAML and TOON (Token-Oriented Object Notation)

Convert SVG to CSS data URI for backgrounds

Convert images to/from Base64 encoding

Convert curl commands to JavaScript Fetch, Axios, or Python requests

Generate mock API rules for local development

Generate UUIDs (v4)

Generate MD5, SHA-1, SHA-256, SHA-512 hashes

Generate secure random passwords

Generate URL-friendly slugs from text

Generate placeholder text

Generate QR codes from text or URLs

Generate JSON Web Tokens

Generate secure API keys

Generate fake data for testing

Build and validate cron expressions

Generate time-based one-time passwords (2FA)

Generate common regex patterns with testing

Generate OpenAI/Anthropic function calling schemas

Build reusable prompt templates with variables

Extract and modify CSS variables with live preview

Test and debug regular expressions

Parse and analyze URL components

Decode and inspect JWT tokens

Parse and explain cron expressions

Query JSON with JSONPath expressions

Parse and analyze HTTP headers

Parse and analyze user agent strings

Parse IP addresses and calculate subnets

Analyze text for word count, reading time, etc.

Compare two texts and see differences

Minify code and analyze size savings

Estimate token counts for LLM models (GPT, Claude, Gemini, Llama)

Analyze context window usage and estimate LLM costs

Split text into chunks for RAG and embeddings

Calculate token counts and API costs across LLM providers

Detect and redact personally identifiable information

Visualize and analyze text chunking and segmentation for RAG pipelines

Validate JSON against a schema

Validate email addresses

Validate XML structure and syntax