Browser-only tool
UTM builder and parser
Generate UTM-tagged URLs with consistent parameters and parse existing links to inspect campaign, source, medium, and term values.
Warning: UTM parameters are visible in logs and analytics. Never put secrets or personal data in URL parameters.
Privacy And Limitations
UTM processing runs locally in your browser and does not upload URLs.
- UTM tags improve campaign attribution but do not guarantee analytics data quality.
- Do not include secrets or personal data in URL parameters.
- Attribution results also depend on analytics setup, cookie policy, and cross-domain tracking.
FAQ
What are UTM parameters?
UTM parameters are query parameters used to label campaign traffic sources in analytics platforms.
Should UTM values contain private data?
No. URLs can be logged and shared, so sensitive data should never be placed in UTM fields.
Can this fix broken attribution?
It helps create consistent links, but attribution still depends on analytics implementation details.
Which UTM fields are required?
Common minimum is utm_source and utm_medium, with utm_campaign for clearer reporting.
Is parsing done server-side?
No. Parsing and building are done in the browser.