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Tools/Email/SPF Record Generator

SPF Record Generator

ReadyHow to use

Build a valid SPF TXT record from your senders and policy.

EmailBrowser workspace

Free to use. No account, no daily limit, and no backend processing for tool input.

Loading tool…

Tip: use samples, upload, copy, download, and send-to actions inside the workspace where available.

Actions

Calculation workflow

Fast browser-side checks

SPF Record Generator runs deterministic calculations and validations locally so small checks stay instant.

InstantLocal mathNo quota

Enter the values in the workspace and review the calculated result before copying it.
Use examples or presets where available to confirm the expected input format.
Related tools below cover adjacent validation, conversion, and lookup-style workflows.

These tools are designed for low memory use because they avoid dataset profiling and file-wide analysis.

Related tools

DKIM Key GeneratorGenerate an RSA-2048 DKIM key pair and DNS record in your browser.
DMARC Record GeneratorBuild a DMARC policy TXT record with reporting addresses.
Email Header AnalyzerParse raw email headers — SPF/DKIM/DMARC results and delivery hops.
Email Signature GeneratorBuild a clean HTML email signature you can copy.
Disposable Email CheckerCheck whether an email uses a known throwaway domain.

Related guides

Generate SPF Record OnlineBuild a valid SPF TXT record from your senders and policy. Use SPF Record Generator in your browser with no signup, no daily limit, and no backend processing for tool input.
Generate DKIM Key OnlineGenerate an RSA-2048 DKIM key pair and DNS record in your browser. Use DKIM Key Generator in your browser with no signup, no daily limit, and no backend processing for tool input.
Generate DMARC Record OnlineBuild a DMARC policy TXT record with reporting addresses. Use DMARC Record Generator in your browser with no signup, no daily limit, and no backend processing for tool input.
Analyze Email Header OnlineParse raw email headers — SPF/DKIM/DMARC results and delivery hops. Use Email Header Analyzer in your browser with no signup, no daily limit, and no backend processing for tool input.
Analyze Disposable Email Checker OnlineCheck whether an email uses a known throwaway domain. Use Disposable Email Checker in your browser with no signup, no daily limit, and no backend processing for tool input.

What is SPF Record Generator?

SPF Record Generator is a free, browser-based tool that helps you produce ready-to-use output in seconds. Build a valid SPF TXT record from your senders and policy. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.

How to use SPF Record Generator

1Configure the options to describe what you need.
2The output is generated instantly and updates as you tweak settings.
3Copy the generated result or download it.

Features

Live output that updates with every option
Copy or download the generated result
100% client-side — no upload, fully private
Free with no account, no watermark, and no daily limit
Works on large inputs, limited only by your device's memory
Load a sample, then copy, download, or share your result

Common uses

Quick one-off generator jobs without opening a heavy app
Preparing data before importing it elsewhere
Sharing a reproducible result with a teammate via a link

Used by

Email marketers
Deliverability teams
IT admins
Support teams
Developers
Test-data teams

Common errors

Generated values are used as real data without review.
Options are left at defaults even though the target system expects a specific format.
Random-looking examples include sensitive real values copied from production.
Generated output is not validated before being pasted into code or configuration.

How it works

1Combines your selected options.
2Builds output directly in the browser.
3Lets you copy or download the generated result.

Recommended workflow

1
Prepare the input
Generate a sample or helper artifact, then copy it into the workflow that needs it.
2
Run SPF Record Generator
Review the preview, copy or download the result, and keep everything local in your browser.
3
Next recommended tool
DKIM Key Generator: Generate an RSA-2048 DKIM key pair and DNS record in your browser.
Open tool
4
Then continue with
DMARC Record Generator: Build a DMARC policy TXT record with reporting addresses.
Open tool
5
Then continue with
Email Header Analyzer: Parse raw email headers — SPF/DKIM/DMARC results and delivery hops.
Open tool

Frequently asked questions

How do I use SPF Record Generator?: Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Build a valid SPF TXT record from your senders and policy.
Is my data uploaded or stored anywhere?: No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.
Is SPF Record Generator free?: Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.
What's the maximum file size?: There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.
Do I need to install anything?: No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.

Authorize A record Authorize MX servers

Allowed IPv4 addresses (comma/space separated)

Includes (third-party senders)

Policy for non-matching mail

SPF TXT record

v=spf1 a mx include:_spf.google.com ~all

Add this as a TXT record on your domain's root (@). Keep within 10 DNS lookups.