What is a mailto link and how does it work?

A mailto link is a URL that starts with mailto: instead of https. When someone clicks it, the browser hands it to the default mail program (Outlook, Apple Mail, Gmail and so on), which opens a new message pre-filled with whatever you put in the link. For example mailto:sales@acme.com opens a blank message addressed to that inbox. It is the standard way to make an email address clickable on a web page.

How do I add a subject and a body to a mailto link?

Append a query string after the address. Subject and body go in as parameters, so mailto:a@b.com?subject=Hello&body=Hi%20there opens a message with the subject Hello and the body Hi there. The tricky part is encoding; this generator does it for you so a space turns into %20 and an apostrophe or ampersand is escaped instead of cutting your text off. Just type the subject and body in plain text and copy the result.

How do I send to multiple recipients in one mailto link?

Separate the addresses with commas in the To field, for example mailto:alice@x.com,bob@y.com. Most mail clients honour this and add both as recipients. Spaces around the commas are fine here; this tool trims them before building the link. Use the Cc and Bcc fields the same way when you want carbon-copy or blind-copy recipients in the draft.

Why are there %0A characters in my mailto body?

%0A is the URL-encoded form of a newline (a line feed). A raw line break cannot live inside a URL, so every time you press Enter in the body the tool writes %0A in its place. When the link is clicked the mail client decodes it back into a real line break, so a three-paragraph body in the box arrives as three paragraphs. If you copy the URL into a text editor and see %0A, that is correct and expected.

What is the difference between cc and bcc in a mailto link?

Cc (carbon copy) adds visible recipients that everyone on the message can see. Bcc (blind carbon copy) adds recipients hidden from the others, which is the right choice for a mass announcement where you do not want to expose everyone email address. In the link they appear as cc= and bcc= parameters; fill the matching field here and the tool places each address list in the correct spot.

How do I use the mailto link inside an HTML page?

Wrap it in an anchor tag, like the HTML anchor output this tool gives you. A snippet such as the anchor with href set to your mailto URL and the visible text Email us turns into a clickable link. Note the ampersand between parameters is written as the HTML entity in the output so the markup validates. Copy the HTML anchor box and paste it straight into your page or email template.

Make a contact email clickable on a landing page

Your site has support@yourco.com sitting as plain text. Put it in the To field, add a default subject like Support request and a one-line body, and copy the HTML anchor. Paste it into the page and now a visitor clicks once, their mail app opens addressed and pre-filled, and they are far more likely to actually write in than if they had to copy the address by hand.

Build a feedback or bug-report link for an app

Pre-fill the subject with Bug report and the body with a small template — steps to reproduce, expected, actual — so every report arrives in the same shape. Drop the mailto URL behind a Report a bug button. Triage gets faster because nobody sends a blank email titled help and you no longer have to ask for the basics every time.

Send a campaign reply link with cc to the team

Marketing sends a newsletter and wants replies to reach the whole team. Put the main inbox in To, add the team alias in Cc, set a subject, and use the generated link as the reply target. One click and the recipient draft already has everyone who needs to see it, so nothing falls through the cracks in a single shared mailbox.

Put a pre-filled email behind a QR code

At an event you want people to email their details. Generate the mailto URL with the booth address and a subject like Demo request, then feed that plain URL into a QR generator. Scanning it opens the attendee mail app with the message half-written, which beats making them type your address on a phone keyboard.

Mailto Link Generator with Subject, Body, Cc and Bcc

Build a mailto link with recipients, cc, bcc, subject and a multi-line body. Correct URL encoding, copy as plain URL or HTML anchor, all in your browser.

Runs locally
Category Developer & DevOps
Best for Formatting, validating, shrinking, or inspecting code-adjacent text.

To (recipients)

Bcc

Subject

Body

Link text (for the HTML tag)

mailto URL

mailto:

HTML anchor

<a href="mailto:">mailto:</a>

Everything is assembled in your browser. Nothing is sent until you click Open email client.

What this tool does

Free mailto link generator that turns a draft email into a clickable link. Fill in the recipient (or several, comma-separated), optional cc and bcc, a subject, and a multi-line body, and the tool assembles a valid mailto: URL the way RFC 6068 specifies. Spaces in the subject become %20, line breaks in the body become %0A, and characters like ampersand, equals and question mark are escaped so they cannot break the query string. You get two outputs side by side: the plain mailto URL to drop into a button or a QR code, and a ready-to-paste HTML anchor with the ampersand between parameters written as the entity so the markup stays valid. A test button opens your default mail client with the draft pre-filled so you can check the result before you ship it. Everything is assembled locally in the page; nothing is sent until you click Open email client.

Tool details

Input: Text; The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output: Live result + Copy; The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy: Browser-side processing; The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share: Shareable URL state; Key settings are encoded in the URL so another person can reopen the same setup.
Performance budget: Initial JS <= 9 KB; No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit: Developer & DevOps · Developer; Category and role tags drive related tools, internal links, and quick fit checks.

How to use

1. Input

Paste or drop your content into the tool panel.
2. Process

Click the button. All processing is local in your browser.
3. Copy / Download

Copy the result or download to disk in one click.

How Mailto Link Generator fits into your work

Use it in the small gaps between coding, reviewing, debugging, and shipping.

Developer jobs

Formatting, validating, shrinking, or inspecting code-adjacent text.
Preparing snippets for documentation, tickets, commits, or handoff.
Checking a small payload quickly without switching tools.

Developer checks

Run irreversible transforms like minify or obfuscate on a copy.
Keep secrets out of pasted snippets unless the tool explicitly stays local.
Use your normal tests or linter before shipping transformed code.

Good next steps

These links move the current task into a more complete workflow.

Real-world use cases

Make a contact email clickable on a landing page
Your site has support@yourco.com sitting as plain text. Put it in the To field, add a default subject like Support request and a one-line body, and copy the HTML anchor. Paste it into the page and now a visitor clicks once, their mail app opens addressed and pre-filled, and they are far more likely to actually write in than if they had to copy the address by hand.
Build a feedback or bug-report link for an app
Pre-fill the subject with Bug report and the body with a small template — steps to reproduce, expected, actual — so every report arrives in the same shape. Drop the mailto URL behind a Report a bug button. Triage gets faster because nobody sends a blank email titled help and you no longer have to ask for the basics every time.
Send a campaign reply link with cc to the team
Marketing sends a newsletter and wants replies to reach the whole team. Put the main inbox in To, add the team alias in Cc, set a subject, and use the generated link as the reply target. One click and the recipient draft already has everyone who needs to see it, so nothing falls through the cracks in a single shared mailbox.
Put a pre-filled email behind a QR code
At an event you want people to email their details. Generate the mailto URL with the booth address and a subject like Demo request, then feed that plain URL into a QR generator. Scanning it opens the attendee mail app with the message half-written, which beats making them type your address on a phone keyboard.

Common pitfalls

Typing raw spaces or line breaks straight into a hand-written mailto and wondering why the subject gets cut off. A bare space ends the URL in some contexts; it must be %20, and a newline must be %0A. This tool encodes both automatically, so paste plain text and let it do the escaping.
Joining query parameters with a plain ampersand inside an HTML attribute. In HTML the ampersand should be written as the entity, otherwise a strict parser may misread the link. Use the HTML anchor output here, which already writes the entity between cc, bcc, subject and body.
Separating multiple recipients with a semicolon instead of a comma. The mailto spec uses commas; a semicolon is an Outlook habit that many other clients ignore, so a second recipient silently disappears. Put commas between addresses in the To, Cc and Bcc fields.

Privacy

The whole link is assembled by JavaScript running in your browser tab. The addresses, subject and body you type are never sent anywhere by this tool, and nothing is logged. The draft only goes to your mail program when you click Open email client, and even then it is your local app that handles it. One caveat worth knowing: the share link puts your fields in the URL query string, so if you paste a share link into chat the recipient server access log will see those values. For a private draft, copy the mailto output and paste that instead of sharing the URL.

FAQ

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Mailto Link Generator with Subject, Body, Cc and Bcc

What this tool does

Tool details

How to use

1. Input

2. Process

3. Copy / Download

How Mailto Link Generator fits into your work

Developer jobs

Developer checks

Good next steps

Real-world use cases

Make a contact email clickable on a landing page

Build a feedback or bug-report link for an app

Send a campaign reply link with cc to the team

Put a pre-filled email behind a QR code

Common pitfalls

Privacy

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