Xplorer - API Client, Done Right

Product Introduction

1. Xplorer is a secure desktop API client designed to execute Postman collections and environments locally without requiring cloud synchronization or data migration. It operates entirely on the user's machine, ensuring API secrets, keys, and payloads never leave the local environment. The tool supports Windows, macOS, and Linux with signed installers for enterprise deployment.
2. The core value of Xplorer lies in eliminating cloud dependency for API testing while maintaining full compatibility with existing Postman workflows. It prioritizes data security by enforcing 100% local execution and storage, removing risks associated with third-party cloud exposure. Enterprise teams gain a future-proof solution that preserves existing API test investments without forced migrations.

Main Features

1. Xplorer executes Postman collections, environments, and JavaScript-based test assertions natively without requiring format conversions or cloud synchronization. Users can import existing Postman exports directly and run them with identical behavior to Postman's native client. This eliminates migration effort while maintaining compatibility with industry-standard API testing practices.
2. All API data, including secrets and sensitive payloads, remain strictly on the user's device with zero cloud synchronization or telemetry collection. The application bypasses CORS restrictions for localhost and internal network API testing without requiring proxy agents or firewall exceptions. This enables secure testing of internal services behind corporate networks.
3. Enterprise deployment is simplified through signed installers for all major operating systems, including managed enterprise Linux distributions. The application supports dark mode, keyboard shortcuts, and font customization while maintaining a familiar Postman-like interface. Teams can edit collections in-place and retain existing test suites indefinitely without forced upgrades.

Problems Solved

1. Xplorer addresses security risks caused by cloud-based API tools that require transmitting sensitive credentials through third-party servers. It prevents accidental exposure of API secrets through enforced local storage and execution. This eliminates compliance conflicts in regulated industries handling financial or healthcare data.
2. The product targets enterprise development teams requiring full control over API testing environments and data residency. Security engineers and DevOps professionals managing internal APIs benefit from the ability to test services within air-gapped networks or strict firewall configurations.
3. Typical use cases include testing internal microservices on localhost, validating APIs behind corporate VPNs without cloud access, and maintaining legacy Postman collections indefinitely. Organizations transitioning from Postman avoid vendor lock-in while preserving existing test automation investments.

Unique Advantages

1. Unlike Postman or cloud-based alternatives, Xplorer never transmits API data externally, even for basic functionality like collection synchronization or team collaboration. All operations occur offline-first, with optional local network sharing excluded by default.
2. The application innovates through native execution of Postman collection formats without requiring cloud accounts or paid subscriptions. It supports JavaScript test assertions and environment variables identically to Postman while adding local execution advantages like direct access to system certificates.
3. Competitive differentiation includes perpetual free access to core features without artificial limits on API calls or test runs. Enterprise teams receive commercial-grade support for deployment without mandatory SaaS subscriptions. The absence of telemetry provides legal compliance advantages for GDPR and CCPA-regulated organizations.

Frequently Asked Questions (FAQ)

1. How does Xplorer ensure API credential security? All data is stored exclusively on the user's device using platform-native encryption for configuration files. Network requests execute directly from the local machine without routing through external servers or proxies.
2. Can Xplorer run existing Postman collections without modification? Yes, it supports standard Postman export formats (v2.1/v2.0) including environments, pre-request scripts, and test assertions. No code changes or format conversions are required for compatibility.
3. Is there a cost for advanced features? Core functionality including collection execution, environment management, and test automation remains free permanently. Optional enterprise support plans are available for large-scale deployments without feature paywalls.
4. What platforms does Xplorer support? Native installers are provided for 64-bit Windows (10+), macOS (Intel and Apple Silicon), and Linux (Debian-based distributions). All versions receive simultaneous security updates.
5. How does local execution affect API testing capabilities? Users gain direct access to localhost services and internal network APIs without CORS restrictions. System proxies and certificates are automatically utilized without requiring cloud-based workarounds.