fckurl

Shorten links in one click.

Sequential IDs, base62 encoded — link #1 is one character. Free, anonymous, with an optional account for click tracking and link management.

Compact codes

Every link gets the next available base62 code. No padding, no collisions, no wasted characters.

Anonymous by default

You don't need to sign up. Sign in only if you want to track clicks and manage your links.

Private links

Two-key mode adds an unguessable secret to the code, shown only once — so only people you share it with can follow the link.

Open API

Anyone can call POST /api/v1/links with no key. Add an X-Api-Key header for authenticated requests.

How it works

  1. Paste a URL above and we issue a base62 code from a strictly-increasing sequence.
  2. The first link is 1, the 62nd is Z, the 3,844th is ZZ — compact codes with no padding or wasted characters.
  3. Sign in to keep your links, see click counts, or generate API keys.