You need to shorten URLs inside your app.
You go looking for a url shortener api and find a Reddit thread from 2023, three dead GitHub projects, and a bunch of enterprise tools that start at $35 a month.
You just want to send a POST request and get a short link back. We put this list together so you do not have to open 15 tabs to figure out which API actually works in 2026.
TL;DR: The 7 Best URL Shortener APIs
If you only have 30 seconds, here are the picks.
- API.market URL Shortener (by Codezic) is the simplest and cheapest option. One endpoint, one API key, free trial with no credit card. Pro plan at $5.99 a month.
- Bitly is the household name. Deep analytics and branded domains, but the free tier caps you at 5 links a month. Paid starts at $35 a month.
- Short.io gives you 1,000 free branded links with a custom domain. 15+ API endpoints and real-time analytics. Paid from $18 a month.
- TinyURL is the original. Free unlimited shortening with no signup. API access and analytics come on paid plans from $10 a month.
- Rebrandly is the compliance pick. SOC 2, HIPAA, GDPR certified. Free tier gives you 500 links and 5,000 API calls. Paid from $14 a month.
- T.ly is the developer experience winner. Official SDKs in six languages, an API playground, and an OpenAPI spec. Free tier with analytics included.
- Dub.co is the modern open-source option. Event-based billing, conversion tracking, and A/B testing. Free tier at 25 links a month. Pro from $25 a month.
Now the full breakdown.
What Is a URL Shortener API?
A url shortener api is a service that takes a long URL and returns a short one through a REST endpoint. You send a POST request with your long link, and you get back a JSON response with a shortened version. That short link redirects anyone who clicks it to the original destination.
Some APIs do just that: one endpoint, one job. Others are full link management platforms with analytics dashboards, custom domains, QR code generators, and team collaboration tools. Bitly and Rebrandly fall into that second category. The Codezic API on API.market falls into the first.
Your pick depends on what you are building. If you need click tracking, geo data, and branded domains, you want a full platform. If you need to shorten a URL inside a script and move on, you want a simple API.
URL Shortener API: Why You Need One in 2026
Shortening Links in Apps, Bots, and Automation
Think about all the places long URLs cause problems. SMS messages have character limits, and a 200-character URL eats most of them. Slack bot notifications look messy when they include raw query strings. Email templates break when a tracking URL wraps across two lines.
A url shortener api fixes all of that programmatically. You call one endpoint inside your code, and every link your app generates comes back clean and trackable.
Referral systems need unique short links per user. Notification services need links that fit in push alerts. Marketing automation pipelines need click-trackable URLs without manually creating each one in a dashboard. If you are building any of these, you need an API, not a browser tool.
What to Look For in a URL Shortener API
Before you commit to one, run through this checklist.
- Endpoint simplicity: can you shorten a URL with one POST call, or do you need to set up OAuth tokens, create a "workspace," and configure a domain first?
- Free tier generosity: how many links or API calls do you get before you pay? Five links a month is not a free tier, it is a demo.
- Pricing model: some charge per link, some per API call, some a flat monthly fee. Know which model fits your usage pattern before you sign up.
- Rate limits: if your app generates links in bursts (say, during a product launch), you need an API that handles spikes without throttling you.
- Custom domain support: do you want links on your own domain (yourbrand.co/xyz) or are you fine with the API's default domain?
- Analytics depth: basic click counts, or full breakdowns by country, device, browser, and referrer?
- Documentation quality: if the docs confuse you in five minutes, imagine debugging a failed call at 2 a.m.
- SDK support: do they offer libraries in your language, or are you writing raw HTTP calls?
Keep this list open when you evaluate. It saves you from switching APIs two months into a build.
Top 7 URL Shortener APIs of 2026
1. API.market URL Shortener API (by Codezic)
This is the simplest url shortener api you will find right now. One POST endpoint. One API key in the header. You send a JSON body with a URL, and you get a short link back. No OAuth flow, no dashboard configuration, no domain setup. You get a key from API.market, make a call, and you are done.
The API ships through the API.market marketplace. That means the same API key you use here also works across 500+ other APIs on the platform. If you are already using API.market for anything else, you do not even need a new account.
Key features:
- Single POST endpoint at /api/shorten that returns a short URL in JSON
- API key authentication via the x-api-market-key header, no OAuth or token refresh needed
- Clean JSON response format: {"short_url": "https://prod.api.market/abc123"}
- Soft rate limits so a traffic spike does not break your integration
- Works for apps, bots, automation tools, websites, and internal tools
- One API key unlocks 500+ other APIs on the same API.market account
Pricing: The free trial gives you 1,000 API units over 7 days with no credit card required. After that, the Pro plan is $5.99 a month with each extra API unit costing $0.0001. The rate limit is soft, meaning a sudden spike does not shut you down.
Here is what a real call looks like:
curl -X POST "https://prod.api.market/api/shorten" \
-H "Content-Type: application/json" \
-H "x-api-market-key: YOUR_API_MARKET_KEY" \
-d '{"url":"https://google.com"}'
And the same thing in JavaScript:
fetch("https://prod.api.market/api/shorten", {
method: "POST",
headers: {
"Content-Type": "application/json",
"x-api-market-key": "YOUR_API_MARKET_KEY"
},
body: JSON.stringify({
url: "https://google.com"
})
})
.then(res => res.json())
.then(data => console.log(data.short_url));
You get back a JSON object with a short_url field. Cache it, store it, wire it into your UI. That is the entire integration.
Say you are building a referral system. Each user gets a unique invite link, and you need it short enough to share in a text message. You call this endpoint once per user, store the short URL in your database, and display it in their dashboard. No third-party dashboard to manage. No branded domain to configure.
Or you run a Slack bot that shares daily article links with your team. You pipe each article URL through this endpoint before posting, so the messages look clean instead of showing a 300-character tracking URL.
Or you have an email automation pipeline that sends weekly roundups. You shorten every link in the email body so you can track which articles get the most clicks, without relying on your email provider's built-in tracking.
At $5.99 a month, this is the cheapest paid plan in the category. Bitly starts at $35. Rebrandly at $14. Short.io at $18. If you just need to shorten URLs and you do not need a full link management platform, this is where I would start.
Best for: developers, startups, and small teams that need a simple, affordable url shortener api without branded domains or enterprise dashboards. Not ideal for: enterprise marketing teams that need custom branded domains, SOC 2 compliance, or deep campaign analytics built into the shortener.
2. Bitly URL Shortener API
Everyone knows Bitly. It is the name most people think of when they hear "URL shortener." And the API backs that up with a wide feature set: shortening, expanding, bulk operations, click analytics, custom branded domains, QR code generation, and deep linking.
Key features:
- REST API endpoints for shortening, expanding, updating, and bulk link operations
- Custom branded domains so your links show yourbrand.co instead of bit.ly
- QR code generation through the API
- Deep linking support for mobile apps
- 99.99% uptime target with enterprise-grade infrastructure
- Integrations with Zapier, webhooks, and third-party platforms
Pricing: The free tier gives you 5 short links per month, 2 QR codes, and 1,000 API requests. That is enough for a quick test, not for a real project. Paid plans start at $35 a month for the Core tier, which unlocks higher limits, custom domains, and full analytics.
If you are an enterprise marketing team that needs branded links, campaign tracking dashboards, and compliance features, Bitly is a solid choice. The API is well-documented and the platform has been around for over a decade.
For a developer who just needs to shorten URLs programmatically, the pricing is hard to justify. At $35 a month you are paying for a dashboard, team features, and branding tools you might never open. Compare that to $5.99 a month for the Codezic API, which does the core job without the overhead.
Best for: enterprise marketing teams that need branded domains, campaign dashboards, and deep click analytics. Not ideal for: solo developers or startups that only need programmatic URL shortening without the enterprise overhead.
3. Short.io URL Shortener API
Short.io stands out for having the most generous free tier among the established URL shortener platforms. You get 1,000 branded short links, custom domain support with automatic SSL, and real-time click analytics on the free plan.
Key features:
- 15+ REST API endpoints covering link creation, management, and analytics
- SDKs for JavaScript, Node.js, iOS, and Android
- Custom domains with automated SSL certificates
- Real-time click stream with geographic, device, and referrer breakdowns
- QR code generation with full color customization
- Bulk operations and webhook support for automation
- A/B testing to compare different link destinations
Pricing: The free plan includes 1,000 branded links with analytics. Paid plans start at $18 a month and unlock unlimited links plus advanced features. Short.io has served over 13 billion links across its platform.
One thing worth flagging: even on the free plan, you need to bring your own custom domain. You cannot use a Short.io default domain without one. If you already own a domain you want to brand your links with, this is a great deal. If you just want to shorten a URL quickly without domain configuration, it adds a setup step that other APIs skip.
Best for: marketing teams and mid-size companies that want branded links with click analytics on their own domain. Not ideal for: developers who need a quick, zero-config shortening endpoint without setting up a custom domain first.
4. TinyURL API
TinyURL is the original URL shortener. It has been around since 2002, and most developers have used it at least once. The API is straightforward: you send a URL, you get a tinyurl.com link back.
Key features:
- Free unlimited link shortening with no registration required for basic use
- API access for programmatic link creation
- Custom aliases available on paid plans so you can pick your own slug
- Click analytics on paid tiers
- Simple REST interface that returns a shortened URL
Pricing: The free tier lets you shorten unlimited URLs, which is unique in this list. No other API gives you truly unlimited shortening at zero cost. The catch: the free tier does not include analytics or custom aliases. If you want to track clicks or use a custom domain, paid plans start around $10 to $20 a month.
TinyURL works well when you need quick, no-signup shortening for internal tools or prototypes. You do not need an account to shorten a link through their basic API, which makes it the fastest way to get started.
Where it falls short is analytics and branding. If you care about knowing who clicks your links and from where, you need a paid plan or a different API entirely.
Best for: quick prototypes, internal tools, and developers who need unlimited free shortening without creating an account. Not ideal for: production apps that need click analytics, custom domains, or branded links.
5. Rebrandly URL Shortener API
Rebrandly positions itself as "link infrastructure" for teams that need compliance and scale. If you work in healthcare, finance, or any regulated industry, Rebrandly is probably on your shortlist already.
Key features:
- Custom branded domains with full DNS management
- SOC 2 Type II, HIPAA, and GDPR compliance certifications
- 20,000 API calls per hour on standard plans, scaling to 100,000 links per second on enterprise
- QR code generation, UTM parameter builder, and real-time analytics
- Unlimited data retention on analytics
- Team collaboration with role-based access controls
Pricing: The free tier gives you 500 links, 5,000 API calls per month, and one custom domain. Paid plans start at $14 a month and scale to enterprise tiers with dedicated support and SLAs.
Rebrandly is the right pick when your organization needs audit trails, data retention policies, and compliance certifications alongside URL shortening. The API handles high throughput well, and the documentation is solid.
For most developers building side projects or startup MVPs, the compliance features are not relevant. You would be paying for infrastructure you do not need yet. Start simpler and move to Rebrandly when your compliance requirements demand it.
Best for: teams in healthcare, finance, or regulated industries that need SOC 2/HIPAA compliance and high-throughput link shortening. Not ideal for: early-stage startups and indie developers who do not have compliance requirements yet.
6. T.ly URL Shortener API
T.ly wins on developer experience. It ships official SDKs in six languages: Go, Python, Node.js, .NET, Ruby, and PHP (with a dedicated Laravel package). Most other URL shortener APIs give you docs and wish you luck. T.ly gives you a library in your language.
Key features:
- Official SDKs in Go, Python, Node.js, .NET, Ruby, and PHP/Laravel
- Four clean endpoints: POST /link/shorten, GET /link, GET /link/stats, DELETE /link
- Interactive API playground for testing calls before writing code
- Postman collection and OpenAPI specification for quick integration
- Click analytics with unique visitor tracking
- Custom domains available on paid plans
Pricing: The free tier includes link shortening with analytics. Paid plans start around $12 a month for higher limits and custom domains.
If you are the kind of developer who prefers installing an SDK and calling a method over constructing raw HTTP requests, T.ly is a strong pick. The API playground lets you test calls in your browser before writing a single line of code. And the OpenAPI spec means you can auto-generate a client in any language not covered by the official SDKs.
Best for: developers and engineering teams that prefer SDK-native integration in Go, Python, Node.js, .NET, Ruby, or PHP. Not ideal for: non-technical users or teams that only need a single cURL call without language-specific tooling.
7. Dub.co (Dub Links)
Dub is the newest entry on this list and the most opinionated. It is open-source, built for developer-led teams, and priced on an event-based model instead of a flat monthly fee.
Key features:
- REST API with SDKs in TypeScript, Python, Go, Ruby, and PHP
- A/B testing for links to compare different destinations
- Revenue attribution and conversion tracking tied to payment providers like Stripe
- Affiliate management tools built into the platform
- SOC 2 Type 2 and GDPR compliance
- Fully open-source codebase you can self-host
Pricing: The free tier gives you 25 links per month, 1,000 tracked events, and 30 days of analytics retention. The Pro plan is $25 a month for 1,000 links and 50,000 events with one year of analytics. Business is $75 a month, and Advanced is $250 a month.
Dub is purpose-built for SaaS companies that want to tie link clicks to revenue. If you are running an affiliate program or need to know exactly which short link led to a Stripe payment, Dub does that natively. The open-source angle also means you can self-host the entire platform if you want full control.
The free tier is tight at 25 links a month, and the event-based pricing can add up fast if your links get heavy traffic. This is not the cheapest option, but it is the most feature-rich for product-led growth teams.
Best for: SaaS companies and product-led growth teams that need conversion tracking, affiliate management, and link-to-revenue attribution. Not ideal for: developers who just need simple URL shortening without event tracking or revenue analytics.
URL Shortener API Pricing Overview
Here is every API side by side so you can compare costs without scrolling back up.
- API.market (Codezic): $5.99 a month (Pro). Free 7-day trial with 1,000 units, no credit card. Pay-per-unit model at $0.0001 per unit.
- Bitly: $35 a month (Core). Free tier limited to 5 links and 1,000 API requests per month.
- Short.io: $18 a month. Free plan with 1,000 branded links (custom domain required).
- TinyURL: $10 to $20 a month for paid plans. Free unlimited shortening without analytics.
- Rebrandly: $14 a month. Free tier with 500 links, 5,000 API calls, and 1 custom domain.
- T.ly: around $12 a month for paid plans. Free shortening with analytics included.
- Dub.co: $25 a month (Pro). Free tier at 25 links and 1,000 events per month.
How to Integrate a URL Shortener API
You do not need to build your own URL shortener from scratch. A third-party url shortener api handles the redirect infrastructure, the analytics, and the uptime for you. Here is how to get started with the Codezic API on API.market in under five minutes.
Step 1: Sign up at api.market and grab your API key from the dashboard.
Step 2: Make a POST request with the URL you want to shorten.
curl -X POST "https://prod.api.market/api/shorten" \
-H "Content-Type: application/json" \
-H "x-api-market-key: YOUR_API_MARKET_KEY" \
-d '{"url":"https://your-very-long-url.com/with/lots/of/parameters?tracking=true&source=email"}'
Step 3: Parse the response and use the short URL.
{
"short_url": "https://prod.api.market/abc123"
}
That is the entire flow. One request, one response, one short URL. You can wrap this in a function in any language and call it wherever your app generates links.
If you want to test it before writing code, grab the free trial (1,000 API units, 7 days, no credit card) at api.market/store/codezic/pro.
Conclusion
Every API on this list works. The right one depends on what you need and what you are willing to pay.
If you want the simplest, cheapest way to shorten URLs programmatically, start with the API.market URL Shortener by Codezic. One endpoint, one API key, $5.99 a month. No OAuth, no domain setup, no dashboard you need to learn. The free trial gives you 1,000 calls with no credit card.
If you need enterprise analytics and branded domains, look at Bitly or Short.io. If compliance certifications matter (SOC 2, HIPAA), go with Rebrandly. If you want the best developer experience with SDKs in six languages, try T.ly. And if you are building a SaaS product that needs conversion tracking tied to revenue, Dub.co was built for that.
Pick the one that fits your project today. You can always switch later.
FAQs About URL Shortener APIs
Q1. What is the best free url shortener api for developers?
The API.market URL Shortener by Codezic offers a free 7-day trial with 1,000 API units and no credit card required. TinyURL gives you unlimited free shortening but without analytics. Short.io provides 1,000 free branded links if you bring your own domain. The best pick depends on whether you need click tracking and how many links your app generates.
Q2. How do I build a URL shortener with a third-party API?
You sign up for an API key, send a POST request with the long URL in the body, and get back a shortened link in the JSON response. Most APIs return a short_url field you can store and display. The Codezic API on API.market is the simplest example: one endpoint, one header for authentication, and one field in the request body.
Q3. Is the Bitly url shortener api free?
Bitly offers a limited free tier with 5 short links per month and 1,000 API requests. For anything beyond basic testing, you need a paid plan starting at $35 a month. If you want a more affordable alternative, the API.market URL Shortener by Codezic starts at $5.99 a month with pay-per-unit pricing and a free 7-day trial.