Free Developer Tools

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

Security
Password Generator
Create strong random passwords.
 Security
Passphrase Generator
Generate human-readable passphrases.
 Security
Hash Generator
Generate MD5, SHA hashes.
 Security
JWT Decoder
Decode JSON Web Tokens.
 Security
Random String
Generate random strings.
 Security
SHA256 Generator
Generate SHA256 hash instantly.
 Converters
Base64 Encoder/Decoder
Convert text to/from Base64.
 Converters
URL Encoder/Decoder
Percent-encode/decode URLs.
 Converters
CSV ⇄ JSON
Convert CSV to/from JSON.
 Converters
YAML ⇄ JSON
Convert YAML to/from JSON.
 Converters
Markdown → HTML
Convert Markdown to HTML.
 Converters
HTML Entities
Encode/decode HTML entities.
 Developer
Regex Tester
Test regular expressions.
 Developer
UUID Generator
Generate UUID v4.
 Developer
URL Parser
Parse URLs easily.
 Text
Case Converter
Change text case.
 Text
Slugify
Create slugs from text.
 SEO
Open Graph Preview
Preview social media link cards.
 SEO
Meta Tags Generator
Generate SEO meta tags instantly.
 API
JSON Validator
Validate JSON.
 API
JSON Diff
Compare two JSON objects.

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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Practical developer guides, debugging tutorials, security explanations, and real-world programming tips.

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