TiefWise
The Modern REST API Client
Test, debug, and organize your APIs — fast, private, and local-first. No cloud sync. No account required.
Windows
Only ~5 MB
macOS
Intel & Apple Silicon
Beta 0.8.1
Quick Tour
See TiefWise in action — collections, requests, auth, and more.
Want a step-by-step walkthrough?
Our user guide covers everything from first request to advanced workflows.
Everything You Need
Powerful features, zero bloat. Each built to save you time.
Collections & Folders
Group related requests into collections and organize them with folders. Keep your workspace clean as your API grows.
- ✓ Nested folder structure
- ✓ All HTTP methods — GET, POST, PUT, DELETE
- ✓ Color-coded method badges
Built-in Auth
First-class support for common authentication methods. Set it once at the collection level and every request inherits it.
- ✓ Bearer token
- ✓ Basic auth
- ✓ OAuth 2.0
Environment Variables
Switch between dev, staging, and production with one click. Variables auto-replace in URLs, headers, and bodies.
- ✓ Multiple environments
- ✓ Variable substitution in requests
- ✓ Quick environment switcher
Request History
Every request is logged locally. Search, filter, and replay past calls. Never lose a request again.
- ✓ Full request/response log
- ✓ Favorite & filter history
- ✓ One-click replay
OpenAPI Import
Import any OpenAPI/Swagger spec and instantly get all endpoints ready to test. Supports file upload, URL, or paste.
- ✓ JSON, YAML, YML formats
- ✓ Import from file, URL, or clipboard
- ✓ Auto-discover all endpoints
Download Options
Windows
Windows Installer (EXE)
RecommendedQuick setup wizard. Best for most users.
~5 MB | Windows 10/11 (64-bit)
Windows MSI Package
EnterpriseFor deployment via GPO, SCCM, or Intune.
~7 MB | Windows 10/11 (64-bit)
macOS
macOS (Apple Silicon)
RecommendedFor M1, M2, M3, and M4 Macs.
~8 MB | macOS 11+
macOS (Intel)
For Intel-based Macs.
~8 MB | macOS 10.15+
System Requirements
Windows 10/11 (64-bit), 4 GB RAM, 200 MB disk
macOS 10.15+ (Intel) or macOS 11+ (Apple Silicon)
Why TiefWise?
Lightweight
Under 8MB. No Electron bloat. Starts instantly.
Fast
Native performance. Sub-100ms response rendering.
Beautiful
Modern dark UI. Syntax highlighting. Clean design.
OpenAPI Native
Import Swagger/OpenAPI specs directly. Auto-discover endpoints.
Secure
Local-first. No cloud sync. Your data stays yours.
Free
No signup. No subscription. Just download and use.
Local-First Philosophy
"TiefWise stores everything locally on your machine. No cloud sync, no accounts, no internet dependency. Your API collections are yours — accessible anytime, even offline."
| Feature | Tagline |
|---|---|
| Local-First | Your data stays on your machine. No cloud, no accounts, no privacy concerns. |
| Lightweight | Just 5–8 MB — 10x smaller than Electron alternatives |
| Offline Ready | Works without internet. All data persists locally. |
Ready to Get Started?
Start testing your APIs in minutes.
Beta 0.8.1