Free tool
Which subject line should you send?
Type one subject line, or up to five to compare. We score each out of 100 on eight plain checks and rank them, with the edits that would help most.
How we check this
The eight checks are rules written as code, not a guess from a model. They look at length (under about 40 characters shows in full on a phone), spam trigger words, capitals and punctuation, whether it fakes a reply with "Re:" or "Fwd:", clickbait against honest curiosity, whether it points at the reader, numbers, and question marks. The same subject always gets the same score.
Your subject lines are scored in your browser and are never sent to us. These are rules of thumb about what gets opened, not a promise about opens: a good subject cannot rescue a bad list or a domain that is set up wrong, which is what the email sending check is for.
More small tools are on the free tools page.
Touchbase finds the companies that would buy your product, and writes the first email for your approval
You tell it what you sell. It finds the right companies and the person to write to, drafts the email, and holds it until you say yes. No card needed to start.