Gmail Formatter

A lightweight tool to format Gmail messages using templates and placeholders for consistent, professional outreach and support emails.

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1,744+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Gmail Formatter processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

The Gmail Formatter converts template-based content into a Gmail-ready message by applying placeholders and formatting rules to subject and body. It supports both HTML and plain text outputs and can optionally insert a branded signature. It validates emails and truncates excess length. Users include sales teams, customer support, and operations staff who draft repetitive emails and require consistency across messages. The tool operates without sending emails itself, acting as a formatting step in the workflow.
It ingests a library of templates, applies a mapping of placeholders to user data, and outputs a final subject and body that are ready to paste into Gmail. The output can target multiple recipients, with optional CC/BCC fields, and respects locale-aware formatting where supported.
Core differentiators are deterministic formatting, safe placeholder substitution, and explicit handling of edge cases (missing placeholders, long content, non-ASCII characters) that help teams maintain branding and efficiency without relying on manual edits.

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How to Use

Provide inputs: to_addresses, subject, body_template, and placeholders.
Choose output_format (html or text) and whether to include a signature.
Run formatting to generate formatted_subject and formatted_body.
Copy into Gmail compose and review.
Send or schedule as needed.

Frequently Asked Questions

Find Quick Answers

What inputs are required?

At minimum, provide to_addresses, subject, and body_template. Placeholders are optional but recommended. A placeholders object maps keys to values used by the template. The tool validates email formats and enforces length limits on subject and body.

Can it handle non-English content?

Yes. The formatter supports Unicode in both subject and body. Placeholders can include non-Latin characters, and the output will preserve the intended encoding for Gmail.

Does it actually send emails?

No. The tool only formats content for Gmail-ready use. It does not call Gmail APIs or deliver messages; users paste the formatted content into Gmail manually or via automation in their own workflow.

How are missing placeholders handled?

Missing placeholders are replaced with empty strings by default. This prevents template errors, but users can configure behavior to retain the placeholder text if desired.

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