Check a cold email's merge tags

Paste a cold email and your CSV header. Flag tags with no matching column, unbalanced braces, broken spintax and tags that will print blank. It runs in your browser; nothing is uploaded. Free, no account.

Both boxes start with an example: a made-up email and the 67Leads export header. Replace them with yours. Nothing is uploaded; the check runs in your browser.

What it checks

Fallbacks

Many sequencers let you write a fallback after a bar, as in {{first_name|there}}, which is used when the cell is empty. Syntax differs between tools, so check your tool's documentation. A fallback does not fix a bad list: a list with many empty first names needs cleaning first (see the lead list cleaner).

Privacy

Nothing is uploaded or stored. The page sends no request with your email or your list; everything is worked out in your browser.

What it does not do

Get 67 leads free No card. Search free with contacts masked.

Lead list column mapperSpintax generatorCold email graderSpam word checkerCold email templates

Questions

How do I check merge tags before sending a cold email?

Paste your email and your CSV header above. Each tag is compared with your columns, and the ones with no match are flagged.

Why does {{first_name}} show up as missing when my column is 'First Name'?

Some tools match the header exactly, with its case and spaces. The checker flags a tag that matches only when those are ignored, so you can spell them the same.

What is a fallback?

A value written after a bar, like {{first_name|there}}, that is used when the cell is empty. Not every tool supports it, so check yours.

Is my email or list sent anywhere?

No. The check runs in your browser; nothing is uploaded or stored.

Can it check spintax?

It flags {a|b} blocks with an empty or single option, and braces that are nested or unbalanced. It does not know which tool you will send with.

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