UTM builder and link checker
Build campaign links in batches, preserve existing queries and check UTM tags. Copy your links or export a CSV, with all processing in your browser.
No links yet
Your campaign links appear here
Add a destination and your tags, and each link is built as you type.
Destinations
0 of 100Up to 100 links, 8,192 characters each. HTTPS or HTTP only.
Campaign tags
Saved on this device
Nothing saved yet. Only your tag values are saved, never your links.
How to use it
- 1
Paste the pages you want to link to, one complete URL per line, up to 100.
- 2
Add your source, medium and campaign. Each link is built as you type, with its tags picked out. If a link already has tags, choose whether to replace or keep them.
- 3
Copy one link or all of them, or export a CSV. To review links you already have, switch to Check existing tags.
Before you export
The checker reads URL structure and campaign tags locally. It does not open destinations, test redirects, check site availability or connect to analytics.
Use consistent campaign names and letter case across your team. Values are encoded automatically; existing query parameters and fragments are preserved. Blank values remove their existing tags in replace mode.
Sources and format guidance
Your inputs stay in this browser. These tools work without an account. The content editor opens separately; your files are not transferred automatically.
Open-source library notices