PathSim vs Isothrum
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
PathSim compared with Isothrum
| Detail | P
PathSim | 
Isothrum |
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| What it does | Python framework for building and simulating dynamical systems using block diagrams
| A GNS3-style editor for containers, VMs, switches and routers that runs in your browser
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| Stage | Not given
| Not given
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| Founded | Not given
| 2022
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| Based in | Not given
| FR
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| Pricing model | Open source
| Free
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| Pricing | Not given
| Not given
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| Key features | - 30+ solvers including implicit, explicit, and adaptive integrators
- Zero-crossing detection and scheduled events for hybrid systems
- Hot-swappable blocks and solvers during active simulation
- Hierarchical subsystems for modular component design
- MIMO support with multiple input and output ports
- Browser-based visual editor with PathView
- Domain toolboxes for chemical, battery, vehicle, flight, and RF engineering
- Custom blocks through subclassing the base Block class
- Supports continuous-time, discrete-time, and hybrid systems
- FMI integration to wrap Co-Simulation and Model-Exchange FMUs
| - 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 | - Readable, scriptable alternative to traditional simulation tools with solver depth
- Full ecosystem including FastSim Rust engine and standalone C code generation
- Minimal runtime dependencies: only numpy, scipy, and matplotlib
- Domain-specific toolboxes for chemical, battery, vehicle, flight, and RF engineering
- MIT license with open source development
| - 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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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 38 ▼ −1 (down) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 6 | 0 |
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| Citation Flow (Majestic) | 14 | 0 |
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| Referring domains (Majestic) | 18 | 0 |
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4 details filled in for both companies.
More alternatives to PathSim More alternatives to Isothrum