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Welcome to Dubly

Dubly is a simple, single-user URL shortener designed for self-hosting. Built with Go and SQLite, it provides a fast, reliable way to manage your short links with built-in analytics and multi-domain support.

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Why Dubly?

Dubly combines simplicity with powerful features, making it ideal for individuals and teams who want complete control over their URL shortening infrastructure:
  • Zero dependencies - Single binary with embedded SQLite database
  • Self-hosted - Your data stays on your servers
  • Multi-domain - Support for multiple custom domains
  • Privacy-focused - Built-in bot filtering for accurate analytics
  • Production-ready - Automatic HTTPS setup with Caddy

Quick start

Get Dubly up and running in minutes with our automated install script

API reference

Integrate Dubly into your workflow with the REST API

GitHub

View source code, report issues, and contribute

Configuration

Customize Dubly with environment variables

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Key features at a glance

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Single binary deployment

Dubly compiles to a single executable with no external dependencies. The embedded SQLite database means you don’t need to manage a separate database server.

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Admin dashboard

A built-in web interface lets you create, edit, and manage links without touching the API. View analytics, generate QR codes, and organize links with tags.

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Click analytics

Track every click with detailed metrics including:
  • Geographic data (country, city, coordinates)
  • Browser and device information
  • Referrer tracking
  • Time-series data

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Bot filtering

Automatic detection of bots and non-human traffic ensures your analytics only count real clicks. Dubly filters:
  • Link preview fetchers (iMessage, Discord, Slack, WhatsApp, etc.)
  • Search engine crawlers
  • HTTP client libraries (curl, wget, python-requests)
  • Datacenter and threat IPs

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How it works

Dubly uses a simple architecture optimized for performance:
  1. Request handling - The chi router processes incoming requests
  2. Cache layer - An LRU cache stores frequently accessed links
  3. Analytics buffering - Clicks are buffered in memory and flushed to SQLite in batches
  4. Soft deletes - Deleted links return 410 Gone instead of 404
This design allows Dubly to handle high traffic while maintaining a small resource footprint.

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Getting started

Ready to deploy Dubly? Check out the Quick start guide to get your instance running in minutes.

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