| What it does | A fast, private and offline API client for REST, gRPC, GraphQL and WebSocket services
| A GNS3-style editor for containers, VMs, switches and routers that runs in your browser
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| Key features | - REST and HTTP with every method, query and path params, JSON, XML, text, form-data, URL-encoded and binary bodies
- gRPC with server reflection or proto files, unary and server-streaming calls, metadata and trailers, TLS and mutual TLS
- GraphQL queries and variables with data and errors split out
- WebSocket text, JSON and binary messages with live message log
- Traffic proxy to capture HTTP(S) traffic of apps and phones
- Python scripting for pre and post-request scripts with tests
- Test cases and CI integration with chapar-cli
- Environments with variables and secret values encrypted with OS keychain
- Import Postman collections, OpenAPI specs and proto files
- Code generation for cURL, Python, Go, JavaScript, Java, Ruby and .NET
| - Visual lab editor with drag-and-drop interface for network devices
- Mix containers and VMs in the same lab
- Configure switches with VLANs and trunks
- Automatic or manual routing between networks
- Add network conditions like latency, jitter and packet loss
- Export to Docker Compose, Vagrant, Proxmox, Kubernetes and cloud platforms
- Import GNS3 projects and convert them to labs
- Real-time validation as you design
- Desktop app with consoles, VNC screens and packet capture
- Works offline and runs entirely in the browser
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| What makes it different | - Local-only data with no cloud sync or telemetry
- GPU-rendered native UI that starts quickly and runs on macOS, Linux and Windows without a browser engine
- Collections stored as YAML files in git for version control
- Built-in traffic proxy for inspecting and importing HTTP(S) traffic from other apps
- Free and open source under BSD 3-Clause license
| - Runs in your browser with no installation or account required
- Exports to multiple environments from one lab design
- Private by design with no data leaving your browser
- Open isoloom.yml format that you own and can version control
- Can import and convert existing GNS3 projects
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Chapar
Isothrum