Rebrandly is the tool people reach for when they want their short links on their own brand domain. KooLink is what we built. The comparison is about where each is strongest.
Price
Rebrandly. A subscription product focused on branded links. There is a free tier (a handful of branded links a month), then paid plans for volume and features.
KooLink. Free forever. Unlimited links. No signup to shorten. No monthly bill.
Custom domains
Rebrandly. This is its core strength. You put your links on your own brand domain — a key reason teams choose it for branded sharing.
KooLink. Custom branded domains are not the current focus. The product is built for fast, free, unlimited shortening plus the AI-agent integration.
Signup
Rebrandly. Account required to manage your branded links and domains.
KooLink. No account to shorten. Paste a URL, get a link.
Link tracking
Both offer analytics. KooLink gives honest per-link views on a free plan and filters bot traffic. Rebrandly's tracking is tied to its paid, account-based model.
The 2026 difference: MCP
The thing that separates them: Rebrandly does not expose a hosted MCP server. KooLink does.
https://mcp.kool.ink
Point your MCP client (Claude, Cursor, Windsurf, VS Code with Continue) at it and the agent gets a shorten_url tool. Ask it to shorten any URL and it does — no browser, no copy-paste, no API key.
There is a terminal one-liner too:
npx @koolink/koolink https://example.com/very/long/path
# → https://kool.ink/xyz
Bottom line
- You want custom brand domains and paid branded-link management → Rebrandly is a strong choice.
- You want free, unlimited, no signup, and a shortener your AI agent can call → KooLink.
If branded domains are the whole point, Rebrandly wins. If you want a free, unlimited, agent-ready shortener, KooLink is the fit.