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Free URL shortener with no signup and unlimited links

Most 'free' shorteners cap you at 5-10 links a month or need an account. KooLink is genuinely free: no signup, unlimited links, no ad interstitial. And it works inside AI agents.

"Free URL shortener" is one of the most abused claims on the internet. Nearly every tool that says it is actually hiding a cap or a login behind the homepage.

This is what free actually means on KooLink — and where most others fall short.

The honest free-plan math

Here is what the big names actually give you on their free tier:

  • Bitly — around 10 links a month. An ad page inserts between your link and its destination. Account required.
  • Rebrandly — 10 branded links a month.
  • TinyURL / is.gd — genuinely unlimited and no signup, but no click tracking and no API.
  • Cuttly — 30 links a month.

Every one of those sits behind a login or a monthly cap. The pattern is the same: get you in, then sell you the limits.

KooLink is built the other way around.

What free means on KooLink

No signup to shorten. Paste a URL, get a link. There is no account wall, no email verification, no free-tier dashboard asking you to sign in. You only create an account if you want payout-linked analytics.

Unlimited links. There is no monthly quota. Shorten one or a thousand — the cap does not exist.

No ad interstitial. The redirect goes straight to your destination. We do not inject an ad page between your reader and your link.

Permanent links. A KooLink link does not expire after a period of inactivity. Shorten something now and it works next year.

Views analytics that are actually honest. When you do create an account you get click tracking that filters out bot traffic rather than inflating your numbers.

The thing nobody else has: AI-agent readiness

Because the free shorteners are all capped and login-walled, none of them are built for automation. KooLink is a hosted MCP server. If you work in Claude, Cursor, or any MCP-native client, you point it at the server and it gets a shorten_url tool — no browser, no paste, no signup.

Connection string: https://mcp.kool.ink

You can also use it from your terminal:

npx @koolink/koolink https://example.com/very/long/path
# → https://kool.ink/xyz

Why most "unlimited free" claims are a trap

Two things usually hide behind an "unlimited free" promise:

  1. The redirect is the product. You get unlimited links, but every visitor hits an ad page. The traffic is sold, and you are the bait.
  2. There is no link management. Unlimited creation, but zero tracking, zero editing, zero historical view. Shorten a hundred links and you cannot tell which ones work.

KooLink does neither. Unlimited and free, no ad interstitial, and honest per-link analytics when you want them.

Bottom line

If you want a quick anonymous link, is.gd or TinyURL work — but you get nothing to measure with. If you need real tracking without a cap, nearly every "free" option wants a subscription.

KooLink is the one that is actually free, has unlimited links, needs no signup, tracks views honestly, and works from an AI agent.

Shorten a link now — or point your agent at https://mcp.kool.ink.