Free Developer Tools

Fast, privacy-friendly online utilities for developers, students, engineers, designers, and security researchers.

Security
Password Generator
Create strong random passwords.
 Security
Password Strength Checker
Check password strength instantly.
 Security
Passphrase Generator
Generate human-readable passphrases.
 Security
Hash Generator
Generate MD5 and SHA hashes.
 Security
MD5 Generator
Generate MD5 hashes instantly.
 Security
SHA1 Generator
Generate SHA1 hashes instantly.
 Security
SHA256 Generator
Generate SHA256 hashes instantly.
 Security
SHA512 Generator
Generate SHA512 hashes instantly.
 Security
Checksum Generator
Generate file checksums quickly.
 Security
Verify SHA256 Windows
Verify downloaded files on Windows.
 Security
JWT Decoder
Decode JSON Web Tokens.
 Security
Random String
Generate random strings.
 API
API Request Builder
Build and test API requests.
 API
cURL to Fetch
Convert cURL commands to Fetch API.
 API
JSON Validator
Validate JSON instantly.
 API
JSON Diff
Compare two JSON objects.
 Converters
Base64 Encoder/Decoder
Convert text to/from Base64.
 Converters
Image to Base64
Convert images into Base64 strings.
 Converters
URL Encoder/Decoder
Percent-encode and decode URLs.
 Converters
CSV ⇄ JSON
Convert CSV to and from JSON.
 Converters
YAML ⇄ JSON
Convert YAML to and from JSON.
 Converters
Markdown → HTML
Convert Markdown into HTML.
 Converters
HTML Entities
Encode and decode HTML entities.
 Converters
Number Base Converter
Convert binary, decimal, and hex values.
 Converters
Color Converter
Convert HEX, RGB, and HSL colors.
 Converters
Timestamp Converter
Convert Unix timestamps into dates.
 Developer
Regex Tester
Test regular expressions easily.
 Developer
UUID Generator
Generate UUID v4 values.
 Developer
URL Parser
Parse URLs into components.
 Developer
Code Formatter
Format and beautify source code.
 Developer
SQL Formatter
Format SQL queries for readability.
 Text
Case Converter
Convert text casing styles.
 Text
Slugify
Create URL-friendly slugs.
 Text
Text Diff
Compare text differences visually.
 Text
Text Stats
Analyze word and character counts.
 Text
Lorem Ipsum
Generate placeholder text instantly.
 SEO
Open Graph Preview
Preview social media link cards.
 SEO
Meta Tags Generator
Generate SEO meta tags instantly.
 SEO
UTM Builder
Generate campaign tracking URLs.
 Generator
Favicon Generator
Generate favicons for websites.
 Generator
Gitignore Generator
Generate .gitignore templates.
 Generator
README Generator
Generate professional README files.
 Network
IP Subnet Calculator
Calculate IP subnet ranges easily.
 Network
Cron Parser
Decode cron expressions instantly.

Free Online Developer Tools

ToolifyCode provides free online developer tools for security, SEO, API testing, encoding, hashing, text processing, validation, conversion, and productivity workflows.

All tools run directly in your browser and are designed to be fast, privacy-friendly, and easy to use.

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