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Fiddler vs Mr.Number

Professional comparison and analysis to help you choose the right software solution for your needs.

Fiddler icon
Fiddler
Mr.Number icon
Mr.Number

Fiddler vs Mr.Number: The Verdict

⚡ Summary:

Fiddler: Fiddler is a free web debugging proxy which logs all HTTP(S) traffic between your computer and the Internet. It allows developers to inspect traffic, set breakpoints, and fiddle with incoming or outgoing data. Fiddler can be used to debug traffic from virtually any application that supports a proxy like web browsers, mobile apps, IoT devices, and more.

Mr.Number: Mr. Number is a mobile app that helps users block unwanted calls and text messages. It has a large database of known spam numbers that it uses to identify and stop callers before they reach you.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Fiddler Mr.Number
Sugggest Score — —
Category Development Security & Privacy

Product Overview

Fiddler
Fiddler

Description: Fiddler is a free web debugging proxy which logs all HTTP(S) traffic between your computer and the Internet. It allows developers to inspect traffic, set breakpoints, and fiddle with incoming or outgoing data. Fiddler can be used to debug traffic from virtually any application that supports a proxy like web browsers, mobile apps, IoT devices, and more.

Type: software

Mr.Number
Mr.Number

Description: Mr. Number is a mobile app that helps users block unwanted calls and text messages. It has a large database of known spam numbers that it uses to identify and stop callers before they reach you.

Type: software

Key Features Comparison

Fiddler
Fiddler Features
  • HTTP/HTTPS traffic interception and inspection
  • Session analysis and manipulation
  • Breakpoints and conditional breakpoints
  • HTTPS traffic decryption
  • Automatic request resending
  • Scripting support
Mr.Number
Mr.Number Features
  • Block unwanted calls and text messages
  • Large database of known spam numbers
  • Identify and stop spam callers before they reach you
  • Block contacts by name or number
  • Get alerts about suspected spam calls
  • Report spam numbers to help expand database
  • See recent blocked calls list

Pros & Cons Analysis

Fiddler
Fiddler

Pros

  • Free and open source
  • Powerful debugging features
  • Supports all major platforms
  • Large user community and documentation

Cons

  • Steep learning curve
  • Can slow down traffic
  • Potential privacy concerns with HTTPS decryption
  • Limited native mobile app support
Mr.Number
Mr.Number

Pros

  • Very effective at blocking spam
  • Easy to use interface
  • Helps avoid unwanted interruptions
  • Constantly updated spam database
  • Can integrate with Android dialer app
  • Free version available

Cons

  • May occasionally block legitimate calls/texts
  • Requires giving app access to contacts
  • Paid version somewhat expensive
  • Limited customization options
  • Not available for iOS

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Learn More About Each Product

Fiddler
Fiddler
Reviews, pricing & alternatives →
Mr.Number
Mr.Number
Reviews, pricing & alternatives →

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