Best Debugging Products in 2025

Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.

Key Proxyman.io features:

User-Friendly Interface Cross-Platform Support Real-time Traffic Interception HTTPS Decryption

Open Source $49.0 / Annually

Monitor all your cloud services with our status page aggregator. IT teams choose IsDown to monitor all their vendors and get alerts whenever an outage occurs. Integration with Datadog, PagerDuty, Slack, Microsoft Teams, and a lot more.

Key IsDown.app features:

Status Dashboard Multiple Profiles for same account Slack App Zapier Integration

Try for free paid Free Trial $37.0 / Monthly (Pro)

Fiddler is a debugging program for websites.

Key Fiddler features:

Comprehensive Debugging Cross-Platform Compatibility Custom Scripting User-Friendly Interface

HTTP proxy / HTTP monitor / Reverse Proxy.

Key Charles Proxy features:

Comprehensive HTTP/HTTPS Debugging User-Friendly Interface Support for Various Platforms Throttling Feature

AI powered Mobile App Testing.

Key Quash Automate features:

In-Workflow Testing AI Test Generation Evolving QA

paid Free Trial $500.0 / Monthly

Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.

Key HTTP Toolkit features:

Ease of Use Cross-Platform Compatibility Open Source Comprehensive Debugging Features

Open Source freemium €7.0 / Monthly (for a Pro subscription)

Perform Web Testing on 2000+ Browsers & OS.

Key LambdaTest features:

Selenium Grid For Mobile Web-Automation Testing Selenium Web Testing Automation Parallel Testing For Goto Market Launch API for Continuous Testing

Open Source freemium $15.0 / Monthly

BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality. .

Key BrowserStack features:

Cloud-based Browser Extensions SaaS

Open Source freemium $29.0 / Monthly (Starts at single user plans and billed annually)

From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend.

Key Sentry.io features:

Real-time error tracking Detailed error reports Integrations Releases and version tracking

The Collaboration Platform for API Development.

Key Postman features:

User-Friendly Interface Collaboration Comprehensive Testing Tools Extensive API Documentation

Open Source

A simple, beautiful Webhook debugging tool.

Key HTTPDump features:

Ease of Use Quick Setup Public URL Creation Real-Time Monitoring

The only web debugging proxy that runs in the cloud.

Key Cloud Middleman features:

Easy Integration Cost Efficiency Increased Security Scalability

Complete AI-driven Test Automation platform for Web apps, Mobile apps and APIs. Simple English commands to automate complex tests easily and effectively with all the flexibility that enterprise teams need!

Key Testsigma features:

Ease of Use Unified Platform Cloud-Based CI/CD Integration

paid Free Trial

AI code reviews. Review your PR in minutes, not days. .

freemium $20.0 / Monthly