UTM Builder - Free Online Tool

UTM Builder generates Google Analytics tracking URLs by appending utm_source, utm_medium, utm_campaign, and the optional utm_term, utm_content, and utm_id parameters to your destination URL. It handles encoding for you so each parameter is safe to send through any link platform.

Build UTM URL

Destination URL*

The page you want to track visits to.

Campaign source (utm_source)*

Where the traffic comes from: newsletter, google, twitter.

Campaign medium (utm_medium)*

How they got here: email, cpc, social, referral.

Campaign name (utm_campaign)*

The product or promo this URL belongs to.

Campaign term (utm_term)

Optional. Paid search keyword.

Campaign content (utm_content)

Optional. Distinguishes ad variants or link placements.

Campaign ID (utm_id)

Optional. Internal campaign identifier.

Enter a destination URL.

Tracked URL

Fill in the required fields to preview the URL.

What is UTM Builder?

UTM Builder is a free, browser-based tool that produces correctly encoded campaign URLs for Google Analytics, GA4, and any analytics tool that recognises UTM parameters. Type in your destination URL, fill in the three required parameters (source, medium, campaign) and any optional ones you need (term, content, id), and the tool emits a single URL you can paste into an email, social post, ad, or QR code.

UTM Builder runs entirely in your browser. The destination URL, the parameter values, and the final tracked URL are never uploaded anywhere — which matters because campaign URLs sometimes leak unannounced product names, customer-specific landing pages, or partner deals before they are public. The tool is also handy for one-off URLs where firing up a spreadsheet template would be overkill.

Typical users are growth marketers preparing email sends, paid-media buyers labelling ad creatives, social media managers tagging post links, and customer-marketing teams personalising URLs for individual partners. The tool also pairs well with QR Code Generator, URL Parser, and URL Encode for a complete distribution workflow.

How to Use This UTM Builder

Paste the destination URL into the first field. Include the scheme (https://) when possible; UTM Builder adds it for you if missing.
Fill in utm_source — the name of the place the traffic is coming from (newsletter, google, twitter, partner-newsletter).
Fill in utm_medium — how the traffic arrived (email, cpc, social, referral, banner, qr).
Fill in utm_campaign — the name of the campaign this URL belongs to (spring-launch, q2-promo, podcast-sponsor).
Optionally fill in utm_term (keyword for paid search), utm_content (creative or placement identifier), and utm_id (your internal campaign ID).
Read the generated URL in the preview panel below. The encoding is handled for you so spaces become %20, ampersands are escaped, and the result is safe to drop into any link platform.
Click Copy URL to send the tracked URL to your clipboard, then paste it into your email builder, ad manager, social scheduler, or QR Code Generator.

Why Use This UTM Builder?

Produces standards-compliant Google Analytics UTM URLs without manual encoding or string concatenation.
Validates required fields (source, medium, campaign) so you cannot accidentally publish a URL missing critical attribution information.
Encodes every parameter value with the same rules Google Analytics expects, eliminating the most common encoding bugs.
Runs locally in your browser, so unannounced product URLs and confidential partner landing pages never leave the device.
Pairs with QR Code Generator on the same site for fast offline-to-online attribution.
No signup, no per-day limit, and no third-party tracking — generate as many URLs as you need.

When to Use UTM Builder

Tagging email send links with source, medium, and campaign so analytics correctly attributes the resulting traffic.
Differentiating ad creatives with utm_content so you can compare performance between header CTAs, footer CTAs, and image variants.
Labelling partner co-marketing URLs with utm_id so partner-attributed revenue rolls up cleanly in your warehouse.
Producing tracked QR codes for offline collateral such as posters, business cards, packaging, and event signage.
Building UTM URLs for paid search campaigns where utm_term carries the keyword and utm_content carries the ad group.
Personalising newsletter links per segment so you can compare behaviour between cohorts after the send.

UTM Builder Features

Required-field validation

utm_source, utm_medium, and utm_campaign are required by GA4 for full attribution. The tool refuses to emit a URL until all three are filled in.

Optional advanced fields

utm_term, utm_content, and utm_id are emitted only when you provide a value. The tool does not pad the URL with empty parameters.

Safe encoding

Every parameter value is percent-encoded with the WHATWG URL standard, the same rules Google Analytics expects. Spaces, ampersands, and unicode characters are escaped correctly.

Schema-less destination

You can paste a destination URL with or without the scheme. The tool prepends https:// so you do not have to fix the input first.

Live preview

The tracked URL updates as you type, which makes it easy to see how each field changes the final string.

Local-only generation

All work runs in your browser. The destination URL and parameter values are never uploaded, which matters when the URL contains an unreleased product name or a partner-specific path.

What UTM parameters actually do

UTM parameters are a convention introduced by Urchin (the company Google acquired to build Google Analytics) for attaching campaign attribution to a URL. When a visitor follows a tracked link, the analytics tool reads the utm_* parameters and uses them to label the resulting session. This is what makes "20% of last month's signups came from the spring newsletter" a question you can answer in your dashboard.

GA4 and Universal Analytics recognise the same five canonical parameters: utm_source, utm_medium, utm_campaign, utm_term, and utm_content. GA4 also formally added utm_id for internal campaign identifiers. Other analytics tools (Adobe, Heap, Mixpanel, internal warehouses) generally accept the same set, which makes UTM tagging a portable strategy across platforms.

A small amount of discipline goes a long way. Pick canonical lowercase values for source and medium (so "Newsletter" and "newsletter" do not become two separate rows in your dashboard), use hyphens or underscores consistently in campaign names, and document the taxonomy somewhere your marketing team can reference. UTM Builder enforces the encoding; the taxonomy itself is yours to define.

Decision Guide

Best for

Marketers preparing email sends, paid ads, and social posts.
Customer marketing teams personalising partner-specific URLs.
Anyone tagging links for analytics attribution without a spreadsheet template.

Avoid when

You manage a high volume of URLs — use a spreadsheet or in-house generator with a fixed taxonomy.
You need custom non-UTM parameters that the tool does not emit.

Example

Build a tracked URL

Input

https://example.com/landing + utm_source=newsletter + utm_medium=email + utm_campaign=spring-launch

Output

https://example.com/landing?utm_source=newsletter&utm_medium=email&utm_campaign=spring-launch

UTM Builder Best Practices

Use lowercase everywhere

Google Analytics treats "newsletter" and "Newsletter" as different values. Pick lowercase as your team standard and stick to it so dashboards do not split traffic across cosmetic variants.

Standardise utm_medium values

The medium field is what powers the Default Channel Grouping in GA4. Use the standard values (email, cpc, social, referral, organic) so reports group the way the analytics tool expects.

Keep utm_campaign stable across surfaces

A single campaign should use the same utm_campaign value across email, ads, social, and any other channel. That stability is what makes cross-channel rollups possible.

Use utm_content to compare creatives

Identical utm_source, utm_medium, and utm_campaign values let utm_content distinguish ad variants, button positions, or recipient cohorts. This is the easiest A/B comparison you can ship.

Document the taxonomy

Maintain a short document listing the approved utm_source, utm_medium, and utm_campaign values. UTM Builder removes the encoding pain; the taxonomy is what keeps the data clean over time.

Troubleshooting

The preview is empty even after filling in fields.

Make sure all three required fields (source, medium, campaign) are non-empty and that the destination URL parses cleanly.

My tracked URL looks too long.

Shorten utm_campaign or remove optional parameters you do not need. For sharing, consider routing the long URL through your own short-link service.

Common UTM tracking problems UTM Builder helps prevent

Inconsistent capitalisation splits traffic

Manually typed URLs accumulate "Email", "email", and "EMAIL" over time. UTM Builder is a single source of truth — pasting through the tool encourages your team to commit to one form.

Missing required parameters

Analytics tools fall back to (direct) or (not set) when utm_source or utm_medium is missing. UTM Builder refuses to emit a URL until the required fields are filled in.

Encoding errors break tracking

Spaces and ampersands in raw URLs corrupt the analytics record. UTM Builder encodes every value, so the URL is safe to send through any link platform.

utm_term and utm_content used inconsistently

These optional fields are valuable when used carefully. The tool only emits them when you provide a value, which encourages intentional usage rather than empty padding.

Partner-specific URLs leak before launch

Cloud UTM builders sometimes store URLs server-side. UTM Builder runs locally, so even draft partner URLs stay confidential during construction.

FAQs

Which UTM parameters are required?

Google Analytics requires utm_source, utm_medium, and utm_campaign for proper attribution. The other parameters (utm_term, utm_content, utm_id) are optional and only emitted when you provide a value.

Does the tool work with GA4 and Universal Analytics?

Yes. Both versions of Google Analytics recognise the same set of UTM parameters. GA4 also added utm_id, which the tool supports.

What is the difference between utm_term and utm_content?

utm_term is conventionally used for the paid search keyword that triggered an ad. utm_content distinguishes between creative variants, link positions, or recipient cohorts when the rest of the URL is identical.

Will the tool encode special characters for me?

Yes. Every parameter value is percent-encoded so spaces become %20, ampersands become %26, and unicode characters become their UTF-8 percent-encoded forms. The resulting URL is safe to drop into any link platform.

Can I add my own non-UTM tracking parameters?

Not directly. UTM Builder focuses on the canonical UTM set. If you need additional parameters (such as your own click_id), construct the URL with UTM Builder first and then append the extra parameters with URL Parser to verify the final string.

Does the tool send my URL to a server?

No. All construction runs in your browser. The destination URL, parameter values, and final tracked URL never leave the device, which matters when your URL references an unreleased product or a confidential partner asset.

How do I track offline scans of a printed QR code?

Build the UTM URL here, then paste it into the QR Code Generator on the same site. When someone scans the code, the visit will arrive with full UTM attribution exactly as if they had clicked a tagged link in an email.

What is utm_id used for?

utm_id ties a tracking URL to a specific campaign object in GA4 (and many internal warehouses). It is most useful when your team or platform has a canonical campaign identifier that should appear alongside the human-readable utm_campaign name.

UTM Builder produces clean, encoded, GA-compliant tracking URLs in seconds — useful for every email send, ad creative, social post, and printed QR code you ship.

URL Parser

Live

Break any URL into protocol, host, port, path, query parameters, and hash for inspection.

URL Encode

Live

Percent-encode text for safe URL usage.

URL Decode

Live

Decode URL-encoded text back to normal format.

QR Code Generator

Live

Create QR codes for any text or URL with custom size, colours, and error correction.