| What it does | Stable domains for local development ports, eliminating conflicts with free open-source tunnels and paid cloud options
| Python framework for building and simulating dynamical systems using block diagrams
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| Not given
|
|---|
| Pricing model | Freemium
| Open source
|
|---|
| Pricing | Free and Open Source: $0 (unlimited local tunnels, open source); Professional: $49/mo or $490/yr (unlimited cloud tunnels, visitor auth, feedback comments); Team: $149/mo or $1,490/yr (everything in Professional plus unlimited members, teams, shared subdomains, approvals, organization billing); Ente
| Not given
|
|---|
| Key features | - Stable local domains (*.portzero.local) for processes and containers
- Cloud tunnels (*.tunnel.portzero.cloud) with HTTPS for LAN and internet access
- Support for multiple programming languages
- Git worktree support with per-branch URLs
- AI agent integration with MCP server
- Visitor authentication and access control
- Feedback comments on live tunnels
- Team access policies and approvals
- Audit log (Enterprise plan)
- Organization billing with no per-seat charges
| - 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
|
|---|
| What makes it different | - Eliminates port conflicts by assigning stable virtual domains instead of port numbers
- Free and open source for local use; no additional cost for cloud features on paid plans
- Flat pricing with no meters, overages, or per-seat charges
- Agent-ready with native MCP server integration for AI coding agents
- Works across multiple OS and languages with zero port bookkeeping required
| - 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
|
|---|
| Free plan | Not given
| Not given
|
|---|
| Open source | Not given
| Not given
|
|---|
| Platforms | Not given
| Not given
|
|---|
| Public API | Not given
| Not given
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | 38 ▼ −1 (down) since last check |
|---|
| Trust Flow (Majestic) | 4 | 6 |
|---|
| Citation Flow (Majestic) | 26 | 14 |
|---|
| Referring domains (Majestic) | 135 | 18 |
|---|
Port Zero