Developer Tools & Resources

JSON Formatter

Format, validate, and minify JSON data

XML Formatter

Format and validate XML documents

SQL Formatter

Format and beautify SQL queries

HTML Formatter

Format and beautify HTML code

CSS Minifier & Beautifier

Minify or beautify CSS, strip comments, shrink size

Base64

Encode and decode Base64 strings

URL Encoder

URL encode and decode strings

JWT Decoder

Decode and verify JWT tokens

HTML Entity

Encode and decode HTML entities

URL Encoder Advanced

Advanced URL encoding with batch mode and URL parser

Image to Base64

Convert images to Base64 data URIs

JWT Encoder / Generator

Build and HMAC-sign JWTs in your browser

Hash Generator

Generate MD5, SHA-1, SHA-256 hashes

UUID Generator

Generate unique identifiers

Password Generator

Generate secure passwords

Bcrypt Generator

Generate and verify bcrypt hashes

Random String Generator

Generate random strings with custom patterns and charsets

Password Strength Checker

Test password strength, entropy & crack time

TOTP / 2FA Code Generator

Generate RFC 6238 TOTP two-factor authentication codes

ULID Generator

Generate sortable timestamp-based ULIDs

AES Text Encryption

Encrypt and decrypt text with a password using AES-256-GCM

HMAC Generator

Generate HMAC SHA-256/384/512 signatures in-browser

Unix Timestamp

Convert Unix timestamps

Color Converter

Convert between color formats

Number Base

Convert between number bases

Case Converter

Convert text case formats

JSON-CSV Converter

Convert between JSON and CSV formats with nested object support

YAML to JSON

Convert between YAML and JSON in either direction

JSON to TypeScript

Generate TypeScript interfaces and types from JSON

Contrast Checker

Check WCAG color contrast for accessibility

chmod Calculator

Calculate Unix file permissions in octal & symbolic

cURL Converter

Convert curl commands to fetch, Python & Node code

JSON Schema Generator

Generate draft-07 JSON Schema from sample JSON

IP Subnet Calculator

Calculate IPv4 subnets, netmask & host range from CIDR

Color Palette Generator

Generate color harmonies, shades and tints from a base color

JSONPath Evaluator

Query JSON with JSONPath expressions in your browser

Data Size Converter

Convert between bytes, KB, MB, GB, KiB, MiB and bits

ASCII Converter

Convert text to ASCII codes in dec, hex, binary, octal

Roman Numeral Converter

Convert numbers to Roman numerals and back

JSON Diff

Compare two JSON documents and see added, removed, changed keys

JSON to XML Converter

Convert JSON to XML and XML back to JSON

Regex Tester

Test regular expressions

Diff Checker

Compare text differences

Lorem Ipsum

Generate placeholder text

Word Counter

Count words and characters

Slugify

Convert text to clean, URL-safe slugs instantly

Sort & Dedupe Lines

Sort, dedupe and clean up lists of text lines

String Escape / Unescape

Escape & unescape JSON, JS, HTML, URL, regex strings

Morse Code Translator

Translate text to Morse code and decode Morse to text

Markdown Table Generator

Convert CSV or TSV data into aligned markdown tables

Unicode Character Inspector

Inspect Unicode code points, UTF-8, and escapes

QR Code Generator

Generate QR codes

Cron Expression

Build and test cron expressions

Markdown Preview

Preview markdown content

.gitignore Generator

Generate .gitignore files from curated templates

HTTP Status Codes

Search and reference all HTTP status codes

WiFi QR Code Generator

Create a scannable QR code to share WiFi access

User-Agent Parser

Parse User-Agent strings: browser, OS, engine, device

CSS Gradient Generator

Build linear, radial & conic CSS gradients live

MIME Type Lookup

Look up MIME types by file extension or type

CSS Box Shadow Generator

Build layered CSS box-shadow values with live preview

CSS Cubic Bezier Generator

Visual editor for custom CSS cubic-bezier easing curves

Time Zone Converter

Convert times between time zones with DST support

CSS Unit Converter

Convert px, rem, em, pt, pc, and percent CSS units

HTML Meta Tags Generator

Generate SEO, Open Graph & Twitter Card meta tags