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Sayem Chowdhury
Sayem Chowdhury

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13 Free Web-Based Developer Tools You'll Actually Use

As developers, we often need quick access to various tools for debugging, testing, and data manipulation. While there are many great tools out there, they often come with a price tag or require installation. Today, I want to share a collection of web-based developer tools that are completely free, run in your browser, and focus on privacy.

Why Web-Based Tools?

  • No installation required
  • Access from any device
  • Privacy-focused (client-side processing where possible)
  • Zero cost

Network & Security Tools

1. DNS Lookup

Quickly check DNS records using Google's DNS-over-HTTPS. Perfect for:

  • Verifying DNS configurations
  • Troubleshooting domain issues
  • Checking record propagation

2. SSL Certificate Checker

Verify SSL certificates and their chain of trust. Great for:

  • Security audits
  • Certificate expiration monitoring
  • SSL configuration validation

3. HTTP Headers Analyzer

Analyze HTTP headers for any website. Useful for:

  • Security header verification
  • Server configuration checks
  • CORS policy validation

4. WHOIS Lookup

Get detailed domain registration information. Handy for:

  • Domain ownership verification
  • Registration date checks
  • Contact information lookup

5. Ping Tool

Test network connectivity and response times. Essential for:

  • Network troubleshooting
  • Latency monitoring
  • Basic connectivity tests

API Development Tools

6. Request Debugger

A Postman-like interface for testing HTTP requests. Features:

  • Multiple HTTP method support
  • Header management
  • Request body editing
  • Response inspection

7. WebSocket Debugger

Test and debug WebSocket connections with:

  • Real-time message monitoring
  • Bi-directional communication
  • Connection status tracking

8. GraphQL Explorer

A basic tool for GraphQL API testing:

  • Execute query
  • Schema exploration
  • Real-time response viewing

Developer Utilities

9. JSON Beautifier

Format and validate JSON data with:

  • Syntax highlighting
  • Error detection
  • Pretty printing

10. Base64 Encoder/Decoder

Quick conversion between text and Base64:

  • Encode text to Base64
  • Decode Base64 to text
  • Copy to clipboard functionality

11. Text Diff Checker

Compare text differences with:

  • Side-by-side comparison
  • Syntax highlighting
  • Line-by-line diff view

12. Regex Tester

Test and validate regular expressions:

  • Real-time matching
  • Sample text testing
  • Common pattern examples

13. CSV/TSV Viewer

View and analyze tabular data:

  • Sort and filter capabilities
  • Table formatting
  • Export options

Privacy and Security

All these tools are designed with privacy in mind:

  • Client-side processing where possible
  • No data storage
  • No tracking

Try It Out

You can access all these tools at https://kvmpods.com/tools. They're completely free to use and don't require any registration.

Having quick access to these tools can significantly improve your development workflow. Whether you're debugging an API, checking network configurations, or manipulating data, these web-based tools can save you time and effort.

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