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Email Unsubscribe Link Generator

Generate the correct unsubscribe merge tag for Mailchimp, Klaviyo, SendGrid, HubSpot, ActiveCampaign, and custom platforms. Build RFC 8058 one-click List-Unsubscribe headers and check your email against CAN-SPAM and GDPR requirements. Free online tool.

Your Platform
Merge Tag / URL
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HTML Link Example
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About Email Unsubscribe Link Generator

Email Unsubscribe Link Generator helps you implement a compliant, working opt-out mechanism no matter which platform you send from. Pick your ESP to get the exact merge tag to paste into your template, generate RFC 8058 one-click List-Unsubscribe headers for Gmail and Yahoo bulk sender requirements, and run through a compliance checklist covering CAN-SPAM and GDPR basics.

A broken or non-compliant unsubscribe link is one of the fastest ways to rack up spam complaints and damage deliverability. This tool takes the guesswork out of the exact syntax each platform expects.

Features

  • ESP merge tag lookup: The correct unsubscribe tag and a ready-to-use HTML link example for major platforms.
  • One-click header generator: Builds RFC 8058 compliant List-Unsubscribe and List-Unsubscribe-Post header values from your URL and mailto address.
  • Compliance checklist: Walk through CAN-SPAM, GDPR, and Gmail/Yahoo one-click requirements before you hit send.
  • Copy-ready output: One-click copy for tags, HTML snippets, and header values.

How to Use

  1. Select your email platform in the Merge Tag tab to see its exact unsubscribe tag and usage notes.
  2. Copy the tag or HTML example into your email template footer.
  3. Switch to the One-Click Headers tab and enter your HTTPS unsubscribe endpoint and mailto address to generate the required headers.
  4. Add those headers to your sending configuration or ESP settings.
  5. Run through the Compliance Checklist to confirm you meet CAN-SPAM, GDPR, and inbox provider requirements.

Examples

Example 1: A Mailchimp sender adds Unsubscribe to a custom-coded template footer so Mailchimp does not append its own default footer.

Example 2: A high-volume sender using a custom platform generates List-Unsubscribe: <https://example.com/unsub?id=123>, <mailto:unsubscribe@example.com> and List-Unsubscribe-Post: List-Unsubscribe=One-Click to meet Gmail and Yahoo bulk sender rules.

Benefits

  • Fewer spam complaints: A frictionless, working unsubscribe path keeps recipients from hitting "report spam" instead.
  • Stay compliant: Correct tags and headers reduce the risk of CAN-SPAM, GDPR, or inbox provider violations.
  • Meet Gmail/Yahoo requirements: Generate the exact one-click headers bulk senders need since February 2024.
  • Platform-accurate syntax: No more guessing merge tag formatting across different ESPs.
  • 100% free and private: No sign-up, no data stored, runs in your browser.

Frequently Asked Questions

What is a List-Unsubscribe header and why does it matter?
List-Unsubscribe is an email header that lets inbox providers like Gmail and Yahoo show a native one-click unsubscribe option next to your sender name. Paired with List-Unsubscribe-Post, it lets recipients opt out instantly without opening the email, which reduces spam complaints and protects your sender reputation.
Do I need one-click unsubscribe (RFC 8058)?
Since February 2024, Gmail and Yahoo require one-click unsubscribe headers for any sender delivering 5,000 or more messages per day to their users. Even below that threshold it is considered best practice, since it lowers spam complaint rates across the board.
Which merge tag do I use for my email platform?
Each ESP has its own syntax: Mailchimp uses *|UNSUB|*, Klaviyo uses {% unsubscribe %} or {% unsubscribe_link %}, SendGrid uses ASM tags like <%asm_group_unsubscribe_raw_url%>, HubSpot uses {{ unsubscribe_link }}, and ActiveCampaign uses %UNSUBSCRIBELINK%. Select your platform in the tool to see the exact tag and a usage note.
Is a mailto unsubscribe link enough?
A mailto link can satisfy the basic requirement of an opt-out method, but it is a poor experience since it requires the recipient to send an email and wait. It also does not satisfy Gmail and Yahoo one-click requirements on its own — you need the paired HTTPS and mailto values inside a List-Unsubscribe header.
How fast do I have to process an unsubscribe request?
Under the US CAN-SPAM Act, opt-out requests must be honored within 10 business days. One-click unsubscribe headers should be processed immediately, since Gmail and Yahoo expect the request to complete without any delay or additional steps.
Can I ask why someone is unsubscribing?
You can offer an optional reason or preference center after the unsubscribe is already complete, but you cannot require an extra step, login, fee, or additional information before honoring the opt-out itself — doing so violates CAN-SPAM and most one-click requirements.
Is my data stored?
No. All links, tags, and headers are generated locally in your browser. Nothing is transmitted or saved.

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