Best Free Dub Alternative for Developers (2026)

I’ll say the biased part up front: I built ShortLink, and if you’re a developer looking for a Dub alternative, it’s the tool I’d point you to first. But Dub.co is a genuinely good product — open source, developer-first, and built specifically around link attribution — so this isn’t going to be a piece that pretends Dub has some fatal flaw. It doesn’t. What follows is an honest comparison of ShortLink vs Dub for developers, including where Dub is simply the better choice.

ShortLink vs Dub.co: developer comparison at a glance

Feature	ShortLink	Dub.co
REST API	Yes, included free, no separate API tier	Yes, API-first design, a core part of the product
Custom aliases	Yes, free, via dashboard or API	Yes, free plan supports custom aliases
QR codes	Yes, generated automatically per link	Yes, QR code generation included
Analytics	Real-time clicks, geo, and referrer data on the free plan	Real-time analytics with geo/referrer, plus conversion/attribution tracking on paid plans
Analytics retention	Not time-limited on the free plan	Retention window on the free plan — check Dub’s current pricing, as of 2026
Free-plan link/click limits	No hard link or click cap on the free plan	Free plan has link and tracked-click limits — check Dub’s current pricing, as of 2026
Custom domains	Supported	Supported, with a free-plan cap on how many — check Dub’s current pricing, as of 2026
Open source	No	Yes

The two products are aimed at overlapping but not identical audiences. Dub explicitly describes itself as a link attribution platform — it wants to tell you not just that a click happened, but what it turned into. ShortLink is a simpler bet: shorten links, watch clicks land in real time with geo data, generate a QR code and a UTM-tagged link, and do all of that through a REST API without worrying about which tier you’re on.

What Dub does best

Dub earns its reputation, and it’s worth naming exactly why rather than waving at it vaguely.

Open source. Dub’s codebase is open source, which matters concretely if you want to audit what the tool actually does with your data, contribute a fix, or self-host it entirely rather than trust a third party with your link infrastructure. ShortLink is not open source — I’m not going to pretend otherwise or hedge around it. If self-hosting or code-level auditability is a requirement for your project, Dub wins this comparison outright, and no feature list on my side changes that.

Link attribution. Dub’s core pitch isn’t just “shorten and count clicks,” it’s connecting a click to a downstream outcome — a signup, a purchase, a conversion event — through its analytics and integrations. If you’re building growth or marketing infrastructure where the question is “did this specific link drive revenue,” Dub’s attribution tooling is built for exactly that job in a way a general-purpose shortener isn’t trying to compete with.

Developer experience and docs. Dub has invested heavily in its API documentation, SDKs, and the overall feel of building against it. If you’ve used it, you already know the docs are clean and the API design is thoughtful. That’s a real, earned advantage, and it’s part of why Dub shows up constantly in “best URL shortener for developers” conversations.

If any of those three things — open source, attribution, or Dub’s specific developer tooling ecosystem — is the actual requirement driving your search, stop reading the ShortLink pitch and go use Dub. It’s a good tool and it will serve you well.

Where ShortLink is the simpler choice

If what you actually want is a free, hosted shortener with a clean API and no plan tiers to navigate, that’s the gap ShortLink is built to close.

No plan gymnastics. ShortLink doesn’t have a tier ladder that gates custom aliases behind one plan, QR codes behind another, and API access behind a third. Custom aliases, QR code generation per link, a UTM builder, real-time geo analytics, and the REST API are all part of the same free product. You don’t need to check a pricing page to find out which feature you lose at your current usage level.

A REST API that’s just there. Creating a link, setting a custom alias, and pulling click data back are all things you can do through ShortLink’s API without first confirming you’re on a plan that allows API access. If you’re wiring link creation into a CMS pipeline, a bot, or an internal tool, that’s one fewer conversation you need to have with a pricing page before you start building.

Real-time geo analytics without attribution complexity. Not every use case needs conversion attribution. Sometimes you just want to know, the moment it happens, that a link got clicked, where the click came from geographically, and what referred it. ShortLink gives you that directly on the dashboard, without asking you to wire up an attribution pipeline first.

Hosted, not self-managed. Because ShortLink isn’t open source, you’re also not signing up to run and maintain it yourself. For a developer who wants a shortener to just work — create a link, get a QR code, watch the click land, move on — not running your own instance is a feature, not a limitation, as long as self-hosting wasn’t the point for you in the first place.

Free-plan limits: what to actually check before you decide

This is the part of any “X vs Dub” comparison I’d be most careful about, because free-plan limits are exactly the kind of detail that goes stale fast. As of 2026, Dub’s free plan includes limits on tracked clicks and links per month, along with a cap on custom domains — but I’m not going to quote specific numbers here, because pricing pages change and a number I print today could be wrong by the time you read this. Check Dub’s current pricing directly before you decide based on a specific click or link ceiling.

What I can say with more confidence is the shape of the tradeoff: Dub’s free tier is generous for a product built around eventually converting you to a paid plan for attribution and higher volume. ShortLink doesn’t have that ladder to begin with — there’s no separate tier where analytics get richer or the API gets less restricted. That’s a different design philosophy, not a claim that one number beats another number, since I’d rather you verify Dub’s current limits yourself than trust a comparison article’s numbers on either side.

REST API and custom aliases: the part that matters most for developers

If you’re comparing shorteners as a developer rather than as a marketer, the API is usually the actual decision point, so it’s worth being specific about what “has an API” means in practice.

On ShortLink, the REST API covers creating a link (with an optional custom alias), retrieving click data, and generating the QR code that comes with every link — all without a separate API-access tier sitting between you and those calls. If you’re minting a short link per blog post from a CMS, posting links from a Discord or Slack bot, or building an internal tool that needs to rotate links programmatically, that’s the workflow ShortLink’s API is built around.

Dub’s API is built the same way in spirit — API-first, with SDKs and solid documentation — and its custom-alias support works the same basic way: set the alias you want at creation time. The difference isn’t in whether either API can do this; it’s in what surrounds it. Dub’s API is one piece of a broader attribution and analytics platform, so you’re often building against a richer but more complex object model (links tied to campaigns, conversion events, partner tracking). ShortLink’s API is scoped to the simpler job: links, aliases, QR codes, UTM parameters, and real-time click data.

QR codes and UTM tracking

Both tools generate QR codes per link, so this isn’t a differentiator on paper. Where it’s worth a note: ShortLink generates the QR code as part of creating the link itself, no separate step, and pairs it with a UTM builder so a QR code pointing at a physical flyer or product package can carry the same campaign tagging as a link you post to social. If UTM tagging and QR generation are things you want handled inline as part of link creation rather than as separate tools, that’s what ShortLink is set up for.

Who should actually use Dub instead

To be direct about it: if you need to self-host your link infrastructure, want to audit or modify the underlying code, or your product genuinely depends on tying clicks to downstream conversion events through an attribution platform, Dub is the right tool and I’d be doing you a disservice to argue otherwise. Its open-source status and attribution focus aren’t marketing angles — they’re real architectural choices that solve problems ShortLink isn’t built to solve.

If instead what you want is a free, hosted shortener with a REST API, custom aliases, QR codes, a UTM builder, and real-time geo analytics — without evaluating which plan tier unlocks which feature — that’s the simpler problem ShortLink was built around. Try it at s.fulinlabs.com.

For a broader look at how ShortLink stacks up outside the developer-specific angle, see my ShortLink vs Bitly comparison and the best Bitly alternatives with folder-style organization. If analytics depth across a wider set of free tools is what you’re actually trying to figure out, 8 Best Free URL Shorteners With Real Analytics covers that ground directly, including a section on Dub’s free tier. And if the real question underneath all of this is simply “how do I know who’s clicking my links,” I’ve written a practical guide to tracking link clicks for free that walks through the methods independent of which specific tool you land on.