# Shrl Io

> A privacy-first, high-performance, self-hosted URL shortener and traffic analyzer designed for teams and individuals who want full control over their link data.

- **Website:** https://github.com/barats/shrl-io
- **Pricing:** unknown
- **Categories:** Data & Analytics, Developer Tools
- **Tags:** data-analytics, developer-tools, design
- **Platforms:** Web, CLI
- **Last verified:** 2026-09-10
- **Canonical page:** https://linkrena.com/tools/shrl-io

## About

Auto codes : shrl.io generates every Code : lowercase, from an unambiguous alphabet (no 0 / O / 1 / l ). Users never choose a Code. A Code is globally unique across every Base URL. The exact Code Length defaults to 6; an Admin can set it per instance (4–12) in Settings.

Admin-managed base URLs : an Admin registers Base URLs ; Users select from the registry when creating a Link. A Base URL labels where a Link lives and is shown alongside the Code ( base_url/code ) when displaying Links, but it is not part of a Link's identity — a Code alone identifies it.

Remark : an optional note on a Link so you can remember what it does; editable after creation.

QR codes : every Link's detail page shows a QR code for its short URL, generated entirely in the browser and downloadable as a 1024px PNG — no server round-trip.

Full lifecycle : create, list, get, update the Destination, disable, enable, or delete a Link.

Async tracking : each Redirect pushes a Visit onto a Redis stream; the worker aggregates in batches, keeping the redirect path non-blocking.

Read API : lifetime and window totals, daily time series, and top-N breakdowns per dimension.

Dimensions : referrer , device , os , browser , country , region , city , and the six utm_* parameters.

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