Security & Encoding Tools — Free Online Utilities

Generate secure credentials, encode payloads, and prepare safe data transport values.

All Security & Encoding Tools

Security

Password Generator

Produce strong passwords using browser cryptography APIs.

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Security

Hash Generator

Compute SHA-1 and SHA-2 hashes for quick integrity checks.

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Encoding

URL Encode / Decode

Transform encoded URL values into readable strings and back.

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Common security tool use cases

Authentication

  • Generate strong default passwords
  • Create secure temporary credentials
  • Inspect JWT payload values

Encoding & Transport

  • Encode URL parameters safely
  • Decode encoded payloads during debugging
  • Normalize transmitted values

Integrity Checks

  • Create hash values for file checks
  • Compare digest outputs in pipelines
  • Validate test signatures

Developer Testing

  • Generate random strings and keys
  • Prepare tokenized test payloads
  • Run quick local security checks

Security and encoding utilities built for quick, safe workflows

ToolCrux security and encoding tools focus on practical daily tasks: generating strong values, encoding strings for transport, and validating payload behavior during debugging. Instead of jumping between multiple utilities, this category gives developers and operators one place to run core security-adjacent operations quickly.

These free dev utilities are designed for no-signup usage and immediate output. Tools run directly in your browser for fast iteration and safer handling of sensitive test strings.

Related Categories

DeveloperDeveloper Tools CategoryNetwork & Lookup Tools CategoryData & Conversion Tools TextText Tools

FAQ

How long should a secure password be?

At least 16 characters is recommended. The Password Generator supports lengths up to 128 characters. Longer passwords with a mix of uppercase, lowercase, numbers, and symbols are exponentially harder to crack.

What hash algorithms does the Hash Generator support?

It supports MD5, SHA-1, SHA-256, and SHA-512. SHA-256 is the most commonly used for integrity checks. MD5 and SHA-1 are provided for compatibility but are not recommended for security-critical applications.

What is the difference between URL encoding and Base64 encoding?

URL encoding (percent-encoding) replaces unsafe characters in URLs with % followed by hex values — it is designed for URLs and query strings. Base64 converts arbitrary binary data into an ASCII text string — it is designed for embedding data in formats that only support text.

Are generated passwords stored anywhere?

No. Passwords are generated using your browser's cryptographic random number generator and are never sent to any server or stored in any database. Once you close the page, the password exists only where you copied it.

Can I verify a file checksum with the Hash Generator?

The current Hash Generator works with text input. Paste the file contents or a known hash to generate and compare digests. File-based hashing is planned for a future update.