Free Developer Tools
Fast, free, and private. All tools run 100% in your browser. No data is ever sent to our servers.
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JSON Formatter & Validator
Format, validate, and minify JSON data instantly.
FormatValidateMinify
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Diff Checker
Compare two texts or code blocks side by side.
CompareTextCode
JWT
JWT Decoder
Decode and inspect JSON Web Tokens securely.
DecodeSecurityAuth
B64
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 to text.
EncodeDecodeBase64
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URL Encoder & Decoder
Encode or decode URLs and query parameters.
URLEncodeDecode
ID
UUID Generator
Generate random UUID v4 identifiers in bulk.
UUIDGenerateRandom
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Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes.
MD5SHA-256Hash
TW
Tailwind CSS Converter
Convert between Tailwind CSS classes and vanilla CSS.
TailwindCSSConvert
CLR
Color Converter
Convert colors between HEX, RGB, HSL, and OKLCH.
HEXRGBOKLCH
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Cron Expression Generator
Build and decode cron expressions with a visual editor.
CronScheduleGenerate
SQL
SQL Formatter
Format and beautify SQL queries with proper indentation.
SQLFormatBeautify
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Regex Tester
Test regular expressions with live match highlighting.
RegexTestMatch
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Timestamp Converter
Convert between Unix timestamps and human-readable dates.
UnixDateTime
Y/J
JSON to YAML
Convert between JSON and YAML formats instantly.
JSONYAMLConvert
MD
Markdown Preview
Write Markdown and see live HTML preview side by side.
MarkdownPreviewHTML
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Lorem Ipsum Generator
Generate placeholder text for your designs and layouts.
LoremTextGenerate
CSS
CSS Minifier
Minify and beautify CSS code to reduce file size.
CSSMinifyBeautify
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HTML Entity Encoder
Encode and decode HTML entities like < > &
HTMLEncodeEntity
755
Chmod Calculator
Calculate Unix file permissions in numeric and symbolic format.
ChmodUnixPermission
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JSON Path Finder
Navigate JSON trees and find JSONPath expressions.
JSONPathTree
YML
YAML Validator
Validate YAML syntax and convert to JSON format.
YAMLValidateJSON
SVG
SVG Optimizer
Optimize SVG files by removing unnecessary data.
SVGOptimizeSize
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CSS Gradient Generator
Create beautiful CSS gradients with a visual editor.
CSSGradientColor
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Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Cards.
SEOMetaOG
OG
Open Graph Preview
Preview how your links appear on Facebook, Twitter, LinkedIn.
OGPreviewSocial
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