Webmasters & Developers

Embed a disposable email widget

Give your visitors an instant temporary email address, embedded directly in your site. Free, no signup, GDPR compliant.

Copy code Built for your community
Why install this widget on your site?
1.
Your visitors stay on your site
Guides like 'how to create an X account' lose 60% of readers at the sign-up step. With an embedded widget, they stay.
2.
Useful tool = longer session time
Visitors linger on pages that are genuinely useful. Google reads this as a quality signal and rewards your ranking.
3.
$0, no sign-up, no maintenance
One line of code to paste. No API key, no quota, no updates. The widget evolves automatically without you touching anything.
4.
GDPR-friendly, no cookies
No third-party cookies, no trackers, no personal data exposed. Compatible with the strictest privacy policies.
Integrate in 30 seconds

Pick the method that fits your site. Simplest first.

Theme
Accent color
#4ddfc4
Background color
#0b0b18
Border radius
Available sizes
Font
Embed via iframe

      
    

  








  
Why embed our widget?


  


    
    

      

      

        
Free. Always. Unconditionally.

        
No registration, no API key, no rate limits. Copy the code, paste it into your page. That's it.

      

    


    
    

      

      

        
A discreet brand mention included

        
Each widget displays a discreet attribution to mail123.click. By offering this useful tool to your readers, you enrich your page and increase their time on site without any external redirect.

      

    


    
    

      

      

        
GDPR compliant — no visitor data collected

        
The widget includes a mini mailbox: your visitors see emails arriving in real time, read content and copy OTP codes — without leaving your site.

      

    


  







  
Built for your community

  

    

      

      
Deal & coupon sites

      
Your readers create promo accounts without polluting their inbox. Keep them on your page.

    

    

      

      
Cybersecurity blogs

      
OSINT tutorials, phishing tests, audits: an embedded temp email is your best ally.

    

    

      

      
Developer portals

      
Sandbox, API tests, QA: generate a test address in one click without leaving your docs.

    

    

      

      
Tool directories

      
Enrich your listings with a live interactive tool, not just a link to another site.

    

  







  
Customization parameters

  

    

      
ParamValeursRôle

      
        
langfr en es pt pt_brInterface language

        
themedark lightTheme (dark / light)

        
color4ddfc4 …Accent color (hex)

        
bg0b0b18 …Background color (hex)

        
radius0–24Border radius

        
fontserif system-ui monospaceFont

        
domainmail123.fr …Pre-selected email domain

      
    

  







  
Real use cases

  

    

      

      
For developers

      
OAuth flow testing, sign-up email verification in e2e tests, sandbox accounts.

    

    

      

      
For tech blogs

      
Article 'how to create a ChatGPT account' → embedded widget = readers don't have to leave your site.

    

    

      

      
For privacy sites

      
Anti-tracking tools, GDPR guides, VPN/email comparisons: a live widget beats a thousand screenshots.

    

  







  

  

    
For developers

    
Need more control? Use the REST API

    
The widget is fast. The API is powerful. Spin up mailboxes on the fly, read messages as JSON, get auto-detected OTP codes. No signup, no key.

    

       4 REST endpoints
       Open CORS
       OTP detection
       50 free req/h
    

  

  
    Open API docs 
  






  
Widget terms of use

  
    
    
  • Free use for any non-malicious site
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  • The attribution link (rel="nofollow") must not be removed from the code
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  • Redistribution prohibited without prior written agreement
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Advanced integration or partnership?

  
For a custom integration, dedicated API or commercial partnership, get in touch.

  
     Contact us