All Your Developer Tools in One Place
Convert data formats, encode/decode strings, generate IDs, format code, and more. All tools run 100% in your browser with no data transmission to servers. Fast, secure, and privacy-focused.
755+
Free Tools
100%
Client-Side
0
Data Collection
Data Format Converters
JSON to YAML
Convert JSON data to YAML format instantly
Popular
YAML to JSON
Convert YAML configuration to JSON
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XML to JSON
Transform XML data into JSON format
JSON to CSV
Export JSON data as CSV spreadsheet
CSV to JSON
Convert CSV spreadsheets to JSON
SQL to MongoDB
Convert SQL queries to MongoDB syntax
Encoding & Decoding
Base64 Encoder/Decoder
Encode and decode Base64 strings
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URL Encoder/Decoder
Encode and decode URL parameters
JWT Decoder
Decode and inspect JWT tokens
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HTML Encoder/Decoder
Encode and decode HTML entities
Hex to Binary
Convert hexadecimal to binary
Data URI Converter
Convert files to Data URI format
Code Formatters & Beautifiers
JSON Formatter
Format and validate JSON data
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SQL Formatter
Beautify and format SQL queries
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HTML Formatter
Format and beautify HTML code
CSS Formatter
Format and organize CSS stylesheets
JavaScript Formatter
Beautify JavaScript code
XML Formatter
Format and validate XML documents
TOML Formatter
Format TOML configuration files
Protobuf Formatter
Format Protocol Buffer definitions
Code Minifier
Minify HTML, CSS, and JavaScript
ID & Password Generators
UUID Generator
Generate RFC4122 UUIDs (v1, v4)
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Password Generator
Generate secure random passwords
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ULID Generator
Generate sortable unique identifiers
NanoID Generator
Generate compact unique IDs
KSUID Generator
Generate K-Sortable unique IDs
Snowflake ID Generator
Generate Twitter Snowflake IDs
CUID2 Generator
Generate collision-resistant IDs
API Key Generator
Generate secure API keys
Random Number Generator
Generate random numbers in range
Security & Hashing Tools
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
Popular
Bcrypt Generator
Generate and verify Bcrypt hashes
HMAC Generator
Generate HMAC signatures
RSA Key Generator
Generate RSA public/private key pairs
CSR Generator
Generate Certificate Signing Requests
SSL Certificate Decoder
Decode and inspect SSL certificates
Code Obfuscator
Obfuscate JavaScript code
Developer Utilities
Regex Tester
Test and debug regular expressions
Popular
Cron Expression Decoder
Decode cron expressions to human readable
Cron Generator
Generate cron expressions visually
Unix Timestamp Converter
Convert Unix timestamps to dates
Diff Checker
Compare text and find differences
Text Diff Tool
Visual text comparison
Semver Calculator
Calculate semantic version ranges
QR Code Generator
Generate QR codes from text/URLs
Text Tools
Word Counter
Count words, characters, and lines
Text Case Converter
Convert text case (upper, lower, title)
Lorem Ipsum Generator
Generate placeholder text
Markdown to HTML
Convert Markdown to HTML
HTML to Markdown
Convert HTML to Markdown
Escape/Unescape Tool
Escape and unescape special characters
ASCII Banner Generator
Generate ASCII art text banners
ASCII Table Generator
Generate ASCII tables
DevOps & Configuration
Docker Compose Generator
Generate Docker Compose files
Popular
nginx Config Generator
Generate nginx configuration
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.gitignore Generator
Generate .gitignore files
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robots.txt Generator
Generate robots.txt files
.htaccess Generator
Generate Apache .htaccess files
DNS Lookup Tool
Lookup DNS records
IP Subnet Calculator
Calculate IP subnets and ranges
HTTP Header Analyzer
Analyze HTTP headers
Webhook Tester
Test webhook endpoints