Xplorer
A Secure, 100% Local API Client
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Xplorer - A Secure, 100% Local API Client

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Stop sending API secrets to the cloud. 🛑 Meet Xplorer: The secure, 100% local-first API client. It runs your existing Postman collections instantly—ZERO migration needed. 🔒 No Cloud Sync 👤 No Accounts Required 🚫 No Telemetry ⚡️ Core Features Perpetually Free. Built for enterprise teams who need an "escape hatch" from cloud-forced tools. Your data stays on your machine. Period.

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Hunter
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We work with many large enterprise customers (banking, insurance, healthcare) who use our open-source framework, Karate. Over the last few years, we noticed a recurring concern among their security teams: developers were inadvertently syncing sensitive API collections, environment variables, and secrets to third-party clouds (like Postman’s) just to use the tool. For many of these orgs, having internal API endpoints and auth tokens sitting on someone else's server is a compliance nightmare and a massive security vector. They need an "escape hatch" – a local-first developer tool. They wish to continue using collections that evolved over years, without disruption. So we built Xplorer. - The Security Premise: Xplorer is architected to be 100% Local. It is not a web-app wrapper that depends on the cloud, it is a true desktop app that uses your file-system. - No Cloud Sync: Your collections and secrets never leave your machine. - No Accounts: No login required. No identity tracking. - No Telemetry: We don’t track usage. This is critical for air-gapped or high-security environments. - The Migration Path: We know teams won't switch if they must rewrite or migrate anything. Xplorer runs Postman collections and environments as-is. There is no migration step. We emulate even JavaScript APIs so that your pre-request scripts and tests run without modification. - Business Model (Transparency):We are building a sustainable business without monetizing user data. Free: The core client (running collections, importing, scripting, local environment management) is perpetually free. - Paid: We charge for features that solve "enterprise-scale" problems which includes OpenAPI and Swagger support, CI/CD and CLI runners, HTML reports, Git-friendliness (exploding collections into folders and files), and parallel execution. If your security team has been clamping down on cloud-based API tools, or if you just want a simpler, local-first and cross-platform alternative to what you currently use, give Xplorer a try.

What specs does the tool support?

Maker

 postman collections (all versions) are supported.

You can also import from cURL. OpenAPI and Swagger support is coming next week.

 awesome. Someone taking the fight to postman! Would love to stay in touch

Congrats on launch! Hope the momentum keeps building for you!

Maker

 much appreciated!

Maker

Next week, we release an update with deep OpenAPI and Swagger support. This is designed to get you from a spec to a live HTTP request in just a few clicks. One click to build a JSON payload and one click to bring up the API request playground (note the "Try It" button). Also, the best, human-friendly way to navigate those thousand-line YAML files you have, instead of relying on verbose generated HTML. Stay tuned !

Maker

This was just released in 2.2.0:

Finally, an API client that doesn't leak secrets to the cloud. Been nervous about using cloud-based tools for sensitive stuff. Does it support importing Postman collections? I have tons of them and migration would be a nightmare otherwise.