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Xplorer

Xplorer

A Secure, 100% Local API Client

Website xplorer.karatelabs.io
Overview

What it is

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.

Intent

I need it when

Explore and test REST, GraphQL, SOAP, and gRPC APIs with AI-assisted test authoring and request chaining

Xplorer provides response viewers with JSON tree inspection, schema hints, and AI-powered assertion generation. Users paste responses and the LLM proposes expect() lines and edge cases. Request chaining lets developers pipe values between requests without glue code.

Convert API exploration and manual testing into CI-ready automation without manual rewriting

Xplorer's one-click Karate Export converts any exploration into native Karate feature files. Assertions, environments, auth, and scripts are converted automatically. The same scenario runs locally in Xplorer, in Jenkins, and on self-hosted runners.

Migrate from Postman to a free, local-first API testing tool without rewriting existing test logic

Xplorer imports Postman collections and environments as-is, runs all requests and assertions without conversion, and offers one-click export to Karate feature files for CI/CD automation. Eliminates cloud dependency and paywalls while preserving existing test investments.

Test APIs locally while keeping API keys and secrets on the developer's machine, not in cloud storage

Xplorer is 100% local-first desktop software. API keys, tokens, and payloads never leave the device. No cloud round-trip, no CORS issues, and works offline and behind firewalls. Ideal for regulated teams and sensitive environments.

Run data-driven API tests across hundreds of parametrized scenarios from CSV or JSON files

Xplorer supports data-driven runs: point at a CSV or JSON file, run the same request parametrized across all rows, and get rolled-up reports. Enables coverage of many test cases in a single execution.

Drop

Not a fit when

  • Team requires cloud-based collaboration and real-time sync across multiple users on shared collections
  • Organization mandates SaaS-hosted API testing tools for centralized audit trails and compliance reporting
  • User needs advanced mock server capabilities beyond basic test doubles; Xplorer focuses on exploration and testing, not mock hosting
  • Project requires extensive custom scripting in languages other than JavaScript; Xplorer uses pm.test/pm.expect syntax
  • Team is already heavily invested in Postman Enterprise with custom workflows and integrations that don't export cleanly
Commercials

Pricing

Freemium: Free tier with core features; Premium tier at $200/user/year adds OpenAPI Try It, Karate Runner, and upcoming features View pricing