Port Radar for macOS vs Prelint: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Port Radar for macOS and Prelint — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Port Radar for macOS
Juan Sebastian Solano
Free open-source Mac menu bar app that lists every listening localhost port and uses on-device Apple Intelligence to explain what each process is.
Key features
- Menu Bar Port Scanner: Lists every listening localhost port in the menu bar with port number, PID, owning project, runtime, and the exact command line.
- Apple Intelligence Explanations: Ask in plain language what a process is, why it has been running, and whether stopping it is safe; answers are generated on-device with no cloud call.
- Project Grouping: Groups processes by the project directory that owns them and flags shared or orphaned processes with no obvious parent.
- One-Click Cloudflare Tunnels: Share any local port as a public URL through a Cloudflare quick tunnel, auto-installing cloudflared with no CLI, ngrok, or account setup.
- Clean Process Control: Stop a process gracefully or force-quit it with a confirmation step, directly from the menu bar.
- Live Tunnel Management: See which tunnels are currently live and public, copy their URLs, and stop them at any time.
- Fully On-Device Privacy: All inspection and AI explanation happens locally; no process data or command lines are sent off the machine.
- Open Source Under Apache 2.0: The full source is published on GitHub, so the app can be audited or built from source.
Best for
- Port Conflict Debugging: Finding out which forgotten process is holding port 3000 before starting a new dev server.
- Runaway Process Triage: Identifying a Node or Python process quietly eating CPU and deciding whether it is safe to kill.
- Preview Sharing: Handing a teammate or client a live public URL for a work-in-progress local app in seconds.
- Multi-Project Development: Keeping track of which of several simultaneously running projects owns each active port.
- Onboarding and Handover: Letting a developer new to a codebase understand what the local stack actually starts up.
- Privacy-Sensitive Environments: Getting AI assistance about local processes in settings where sending command lines to a cloud model is unacceptable.
Prelint
Prelint
AI reviewer that checks every pull request against your ADRs, docs and past decisions to catch product drift before it ships.
Key features
- Context-Aware Review: Reviews each PR against your ADRs, product docs and past decisions instead of only linting style or syntax.
- Product Drift Detection: Flags conflicts, gaps and drift between the PR's intent and your product context inline in the diff.
- Agent Self-Correction: The Prelint agent can self-correct against detected violations before a human reviewer opens the PR.
- GitHub & GitLab Integration: Runs on both major hosted git platforms with native PR/MR integration.
- Isolated Infrastructure: Every organization runs on isolated per-organization infrastructure and Prelint does not train on customer code.
- Usage-Based Pricing: $1 per completed review with $10 in free credits, no seats or subscription.
Best for
- AI-Written PR Triage: A team using coding agents like Copilot or Claude Code lets Prelint gate agent PRs against product intent before humans look.
- Architecture Enforcement: A platform team encodes architecture decisions in ADRs and uses Prelint to catch PRs that violate them.
- Onboarding Safety Net: A new engineer's early PRs get reviewed against product context they haven't fully internalized yet.
- Open Source Maintenance: A maintainer of a public repo enables Prelint (free for OSS) to review incoming contributions for product fit.
- Cost-Controlled Review: A startup wants automated review without paying per developer seat and pays $1 per PR instead.