glass

★ 19

inspector

★ 28

glass vs inspector

Q: Which is better, glass or inspector?

By GitHub stars, inspector has more community adoption, but the best choice depends on your specific use case.

glass: Glass provides AI coding agents with the ability to launch, drive, and verify external native GUI applications, enabling a closed-loop build, see, interact, and debug process. It captures screen content, injects input, reads logs, and detects visual changes, working as a black box with any GUI app across multiple operating systems.; inspector: MCP Inspector is an open-source, interactive developer tool designed for testing and debugging MCP servers, supporting MCP-UI and OpenAI Apps SDK widgets. It offers a beautiful, intuitive browser-based interface for managing prompts, exploring resources, monitoring server connections, and executing tools.

TL;DR

glassDev Tooling · ★ 19

AI agents debugging GUI applications by reproducing bugs from accessibility trees and verifying fixes.

Read glass full review →

inspectorDev Tooling · ★ 28

Debugging and testing MCP server applications and tools.

Read inspector full review →

Side-by-Side Comparison

Field

glass

inspector

Features

glass

01Enables AI agents to launch, drive, and verify native GUI applications independently.

02Provides comprehensive interaction capabilities: screen capture, input injection (mouse/keyboard), log reading, and visual change detection.

03Supports semantic interaction via accessibility trees for more reliable UI automation without reliance on screenshots.

04Works as an external black box with any native GUI app, regardless of toolkit or language.

05Cross-platform support for Linux (X11/Wayland), Windows, Android (AVD), iOS (Simulator), and macOS.

inspector

01Interactive Testing of Tools

02Comprehensive Prompt Management

03Real-time Server Connection Monitoring

04BYOK (Bring Your Own Key) Chat Interface

05Multi-Connection to MCP Servers

Use Cases

glass

↳AI agents debugging GUI applications by reproducing bugs from accessibility trees and verifying fixes.

↳Automating the build-see-interact-debug loop for AI-driven development of UI applications.

↳UI testing and verification of native applications using AI agents.

↳Enabling coding agents to drive and interact with applications semantically using element IDs instead of pixel coordinates.

inspector

↳Debugging and testing MCP server applications and tools.

↳Interactively exploring MCP server resources and schemas.

↳Managing and testing LLM prompts and conversational agents.

↳Monitoring the real-time status and health of MCP server connections.

↳Providing a self-hosted debugging environment for secure or isolated networks.

FAQ

What is the difference between glass and inspector?

Both glass and inspector are in the Dev Tooling category. glass has 19 stars, while inspector has 28 stars.

Which is better, glass or inspector?

The best choice depends on your use case. Choose glass if AI agents debugging GUI applications by reproducing bugs from accessibility trees and verifying fixes., and inspector if Debugging and testing MCP server applications and tools..

Is glass free or open source?

Yes, glass is open source on GitHub (Apache-2.0).

Is inspector free or open source?

Yes, inspector is open source on GitHub.

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Alternatives to glass →Alternatives to inspector →glass details →inspector details →

TL;DR

Side-by-Side Comparison

Features

Use Cases

FAQ

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