Privacy-first HTTP API testing. No account, no cloud sync, no tracking. Free in your browser — or go native on macOS and iOS for OS-level requests without CORS restrictions.
Designed for developers who value speed, privacy, and simplicity over enterprise bloat.
Every request, header, API key, and response stays on your machine. No cloud sync, no telemetry, no account creation. HITOP makes zero network calls beyond the ones you explicitly configure — your data is completely yours.
Fully functional with no internet. Test localhost, internal services, and air-gapped environments without any connectivity.
Organize requests into collections. Run them sequentially. Export as JSON to share with your team or back up your work.
Define collection-level variables and reference them with ${varName} across URLs, headers, and bodies.
JavaScript pre/post-request hooks for dynamic tokens, response extraction, validation, and chained workflows.
Full history with status codes and timings. One-click reload. Filter by success or failure at a glance.
Auto-formatted JSON, XML, and HTML responses with beautiful color-coded highlighting.
All HTTP methods — GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS — with custom headers, request bodies (JSON, XML, form data, plain text), and auth flows. Everything Postman does, without an account or cloud dependency.
Browser extensions must obey browser CORS policies — some APIs simply won't respond to browser origins. The macOS ($4.99) and iOS ($2.99) native apps send requests at the OS level, bypassing CORS entirely. Test any endpoint, anywhere.
Run your collections in CI/CD pipelines, shell scripts, or anywhere you need headless HTTP testing.
Local-first. No cloud lock-in. No data harvesting. Native apps bypass CORS — browsers don't.
| Feature | HITOP | Postman | Insomnia |
|---|---|---|---|
| License | ✓ MIT — Open Source | — Proprietary | Open Source |
| Account required | ✓ No account | ✗ Required | ✗ Required |
| Cost | ✓ From $0 see pricing | $0–$49/user/mo | $0–$8/user/mo |
| Works offline | ✓ Full offline | Partial | Partial |
| Data storage | ✓ 100% local | Cloud sync | Cloud sync |
| Browser extension | ✓ Chrome & Firefox | — Desktop only | — Desktop only |
| No CORS restrictions | ⚠ Web/ext: CORS applies ✓ macOS & iOS: none |
✓ Desktop native | ✓ Desktop native |
| Collections & Variables | ✓ | ✓ | ✓ |
| Custom scripts | ✓ | ✓ | ✓ |
| CLI tool | ✓ Rust CLI | Partial | — |
Free where it works. Native where it matters — no CORS, no limits.
Start free in your browser — or go native on Mac and iOS for full power without CORS.