Free UTM builder
Know which post brought the visit
Paste a link, name the campaign, and get a tagged link for every platform at once, ready for Google Analytics, PostHog, Plausible or any other analytics tool.
- Free
- No sign-up
Your links
Fill in a link and a campaign to get a link per platform.
How it works
- 1
Paste the link you're sharing.
- 2
Name the campaign: the source is filled in per platform, the medium is “social”.
- 3
Copy each platform's link into its post.
What each parameter means
The five UTM parameters, and what to put in them for social posts.
| Parameter | What it says | For a social post |
|---|---|---|
utm_source | Where the visit came from | instagram, tiktok, linkedin… |
utm_medium | What kind of traffic it is | social (ads: paid_social) |
utm_campaign | Which campaign it belongs to | spring-sale |
utm_content | Which post or link, when a campaign has several | reel-1, story-2 |
utm_term | A keyword, mostly for search ads | (usually empty) |
Checked 6 November 2026.
Tips
- Tip 1Use lowercase everywhere: analytics tools count “Instagram” and “instagram” as two sources. The builder does it for you.
- Tip 2Keep medium “social” for posts and something like “paid_social” for ads, so the two stay apart.
- Tip 3Use content to tell two posts in one campaign apart, such as reel-1 and reel-2.
Use it from an AI app
ChatGPT, Claude and other AI apps can run this too, through the free API or the free MCP server. No account or key needed.
API
curl "https://superbridger.com/api/tools/utm?url=example.com%2Fspring&campaign=spring-sale"
JSON in, JSON out, open to any site (CORS). The OpenAPI description lists every endpoint. OpenAPI
MCP server
https://superbridger.com/api/tools/mcp → build_utm_links
Add https://superbridger.com/api/tools/mcp as a custom connector in Claude, or as an app in ChatGPT. No sign-in.
FAQ
Questions
What is a UTM link?
A normal link with utm_ parameters added. Analytics tools read them to show where a visitor came from: which platform, which campaign, which post.
Do UTM parameters change the page?
No. The page is the same; only your analytics read them.
Which medium should I use for social media?
“social” for ordinary posts. With medium social, Google Analytics 4 counts the visit as Organic Social, whatever the source.
Where can I use UTM links on Instagram?
In your bio, on a link sticker in a Story, and in ads. Instagram doesn't make links in captions clickable.
More free tools
- Video checkerWill your video post on Reels, TikTok, Shorts, LinkedIn and X? Length, size, shape, codec and sound, per platform.
- Caption checkerOne caption against every platform's limit, counted the way each one counts: X's 280, Instagram's 5 hashtags, YouTube's title.
- Social media specsEvery limit in one dated table: video length and size, caption length, hashtags, photos and Stories. Also as JSON.
- Image resizerCrop an image to the right size for each platform: posts, Stories, banners and thumbnails. In your browser.
- Safe zone checkerSee where the buttons and captions of Reels, TikTok and Shorts cover your video, before you post.
Post everywhere, starting today.
7-day free trial · No card needed. Sign up with your email or Google and post your first video today.
Superbridger runs these checks before every post, then publishes to every platform at once.