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Distributed worker swarm
Spin up to 100,000 concurrent virtual users across 12 global regions. Workers coordinate in real-time to generate accurate, realistic load patterns.
Simulate thousands of concurrent users via distributed workers. Get a detailed report card with latency, throughput, error rates, and server health metrics.
A complete toolkit for load testing, analysis, and team collaboration - no infrastructure required.
Spin up to 100,000 concurrent virtual users across 12 global regions. Workers coordinate in real-time to generate accurate, realistic load patterns.
Every test produces a graded report card (A-F) scoring latency, error rate, throughput, and stability. Share a public link or export to PDF.
Watch P50/P95/P99 latency, RPS, error rates, and server resource usage stream live as your test runs. No waiting for results.
Invite teammates, set role-based access (Owner, Admin, Tester, Viewer), manage billing, and share test history across your whole org.
See every active login session with device type, OS, location, and last activity. Revoke individual sessions or all devices instantly.
Chain multiple API endpoints in a single test scenario. Set headers, auth tokens, request bodies, and dependencies between calls.
Define SLA thresholds. Get Slack, PagerDuty, or email alerts the moment a metric breaches your acceptable limits during a test.
Plug Load Curl into GitHub Actions, GitLab CI, or Jenkins. Block deploys automatically when a load test fails your grade threshold.
Test REST, GraphQL, gRPC, and WebSocket endpoints. Full support for OAuth 2.0, API keys, mTLS, and custom auth flows.
Add your API URL, set auth headers, and configure request body. Import from Postman or OpenAPI specs.
Set concurrent users, duration, ramp-up time, and select target worker regions for realistic geographic distribution.
Distributed workers across our global network hammer your endpoint simultaneously, recording every metric.
Receive a comprehensive graded report with recommendations, bottleneck identification, and comparison to previous runs.
Our grading algorithm weights 8 metrics to produce a single, actionable letter grade - with detailed breakdowns and fix recommendations for every failing dimension.
Collaborate on test suites, manage access controls, and share results across your entire engineering org.
Invite members by email. Assign roles: Owner, Admin, Tester, or Viewer. Fine-grained permissions per project.
Store, version, and reuse test configurations across projects. Tag, search, and organize with custom labels.
One subscription for the whole team. Track usage per member or project. Monthly invoices with usage breakdown.
Full audit trail of who ran which test, when, and what changed. Export logs for compliance requirements.
Know exactly where your account is signed in. Revoke suspicious sessions instantly - individually or all at once.
| Device | Location | IP Address | Last active | Status | |
|---|---|---|---|---|---|
| 💻 MacBook Pro · Chrome 124 | Mumbai, IN | 103.24.x.x | Now | Current | — |
| 📱 iPhone 15 · Safari | Ahmedabad, IN | 49.36.x.x | 2h ago | Active | |
| 🖥️ Windows 11 · Firefox 125 | Bengaluru, IN | 182.71.x.x | 3d ago | Idle | |
| 💻 Linux · VSCode Extension | Remote CI runner | 34.xxx.x.x | 1w ago | Idle |
No hidden fees. Pay for the concurrency you need. All plans include the report card system.
Join 4,200+ engineering teams who trust Load Curl to catch performance regressions before their users do.
No credit card required · Free plan forever · Setup in 60 seconds