See which apps use your data. Stop background hogs on hotspots and capped plans. Find out why the internet is so slow.
brew install seifip/kilobat/kilobat
Try itEverything above is clickable. The networks and apps are fictional.
Hotspot data that vanishes. A backup choking your call. Wi-Fi that is slow for no clear reason.
Kilobat12 KB/s14 MBWhat is eating your bandwidth? Live traffic for every app, right in your menu bar. Catch the backup choking your call.
“What’s the Wi-Fi password?” Show guests a QR code to scan.
Will this call hold up? See if calls, video and streaming will work.
Hotspot data gone in an hour? Travel blocks backups and updates.
Do not run out of data. Hit your budget and new connections stop.
Getting warmer. Keep going.
DNS lookups are slow. Compare Cloudflare or Google DNS, then restore Automatic if it does not help.
Slow internet, but why? Kilobat checks Wi-Fi, router, internet and DNS, and names the culprit.
Every connection, your network’s history, and power tools: device discovery, route traces and packet capture.
Try itSwitch sections, pick a connection, and set a destination rule.
Open source · GPL-3.0
Traffic by app, Wi-Fi scans, speed tests, diagnostics and rules. Every command is free and open source. No account, no license key.
brew install seifip/kilobat/kilobat
Type kb for short. No Homebrew? Download the CLI, or use the copy inside the Mac app.
~ $ kilobat status ◉ kilobat Wi-Fi · Unmetered · Travel · Filtering status: see app ↓ DOWNLOAD ↑ UPLOAD 3.4 MB/s 2.1 MB/s ▂▃▃▅▆▄▇█▅▆▄▅ ▁▂▂▃▂▃▄▃▂▂▃▂ SESSION 1.39 GB / 5.0 GB ━━━━━━━━━━━━────────────────────────────── APPLICATION LIVE SESSION RULE Safari 3.2 MB/s 824 MB allow Night Drive 0 B/s 312 MB block Cloud backup 0 B/s 240 MB block ~ $ kilobat block com.example.updater ✓ Saved block rule for com.example.updater in Travel. Enforcement requires the open app and its active signed filter. ~ $ kilobat diagnose --json | jq .health "good" ~ $
For AI agents
Every command speaks JSON. Plug Kilobat into your coding agent, then ask it why the internet is slow.
Works with
…and any MCP client, like Grok Build.
Paste into any agent that can run terminal commands.
Install the Kilobat CLI with `brew install seifip/kilobat/kilobat`. Run `kilobat diagnose --json`, `kilobat status --json` and `kilobat scan --json`, then tell me what is slowing my connection and how to fix it. Ask me before changing DNS, profiles or rules.
Read-only diagnostics as tools. Changes are marked, so your agent asks first.
claude mcp add kilobat -- kilobat mcp
Other clients: run kilobat mcp as a local stdio server.
Teaches agents how to read the results and what to try next.
npx skills add seifip/kilobat-skills
Traffic control, diagnostics, Wi-Fi scanning and sharing. Most of it is free.
| The job | Separate tool | Price | Kilobat |
|---|---|---|---|
| Track app trafficUsage, rules, profiles and history |  TripMode |
$14.99 / year | FreeMonitoringProRules and history |
| Find the weak linkSignal, latency, DNS and speed |  WhyFi |
$10 | FreeSpeed testsProDiagnostics |
| Inspect nearby Wi-FiNetworks, signal and channels |  WiFi Explorer |
$19.99 | ProRadar and scans |
| Join and share Wi-FiPicker, saved passwords and QR codes | macOS Wi-Fi menu | Free with macOS | FreePicker and QR |
| All four jobsEverything above | 3 paid appsPlus the macOS Wi-Fi menu | $44.98The first year | $0Everything with Pro: $19 once |
See how Kilobat compares with Little Snitch, LuLu, PeakHour, NetSpot, iStat Menus and more →
No subscription. Pay once if you want the power tools.
$0 forever
The menu-bar app and the open-source CLI.
$19 once
Everything in Free, plus:
Pro covers two Macs. Version 1 and its updates are yours to keep. 14-day refunds. License terms
Yes. The Kilobat CLI is free and open source under GPL-3.0. Every command works without an account or a license key.
Yes. Travel blocks every app you have not allowed, and it can switch on by itself when macOS reports a metered network such as a personal hotspot. Add a data budget and Kilobat stops new connections once you reach it.
The menu-bar app with live traffic for every app, the Wi-Fi picker with password and QR sharing, speed tests, and the full CLI. Pro adds blocking profiles, data budgets, connection diagnosis, signal radar and history.
The free features keep working. Pro features lock until you buy. Kilobat does not change your existing network rules, and Settings stays available so you can turn filtering off.
Only to enforce app and website rules. Monitoring and diagnostics work without it. Kilobat asks macOS for permission when you choose to turn filtering on.
No. Traffic history, network names and rules stay on your Mac. Diagnostics contact test services, and purchase activation and update checks contact their services. Read the privacy notice for details.
Not by itself, and nothing honest can promise that. It shows you where the slowdown is, whether that is weak Wi-Fi, a slow router, your provider or DNS, and stops background apps from competing for a limited connection.
No. Kilobat monitors and manages your Mac’s connections. It does not route your traffic through a VPN server or hide your IP address.