Free tool

Cold email subject line tester for recruiter outreach

Score your subject line for recruiter cold emails in real time. Built for job seekers — checks length, spam words, personalization, tone, and 3 more dimensions. Runs in your browser; nothing is sent to a server.

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Your subject line

Type or paste a subject line. Scoring runs in your browser — nothing is sent to a server.

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What comes after the subject

The subject is the easy part. InTouch writes the personalized body using the job description and the recruiter's LinkedIn context, finds the recruiter's email, and tracks the follow-up — all from one Chrome extension and dashboard.

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Type a subject line above to score it

The scorer checks length, spam words, personalization, and 4 more dimensions in real time.

What it checks

Seven dimensions of a strong recruiter subject line

Length (30–50 chars)

Mobile inboxes truncate around 40 characters. Aim short enough to fit the preview, long enough to convey context.

Spam-flag words

Words like FREE, URGENT, AMAZING, GUARANTEED hurt deliverability. The scorer checks against ~80 known triggers.

Personalization markers

Subjects that reference a specific name, role, or recent context outperform generic templates. The scorer detects proper-noun references.

Generic openers

"Quick question", "following up", "touching base" are low-signal openers. They read as filler to busy recruiters.

The scorer also checks excessive capitalization, emoji use, and whether the subject is a question or a statement. The full breakdown appears next to your input above.

Why the subject line matters

Recruiters decide in under a second

Recruiters open dozens of cold emails a day. The subject is the only thing that decides whether yours gets read or archived.

The patterns that work are not secret: keep it specific, keep it under 50 characters, and skip the openers everyone else uses. The patterns that don't work are also predictable: marketing-flavored words, ALL CAPS, multiple exclamation marks, and templates that were never filled in.

This scorer encodes those patterns as deterministic rules. No AI, no per-request cost, nothing leaves your browser. Use it as a sanity check before you hit send.

After the subject

What comes next in recruiter outreach

Find the recruiter's email

InTouch finds the recruiter's email from their LinkedIn profile — no guessing, no separate tools.

Draft the full personalized body

InTouch generates the email body grounded in the job description and the recruiter's LinkedIn context.

Track follow-up consistency

InTouch schedules the next touch automatically so opportunities don't get dropped.

Common questions

Subject line tester FAQ

What makes a good cold email subject line for a recruiter?

A strong recruiter subject line is 30–50 characters, references something specific (a name, a role, a recent post or hiring update), avoids spam-flag words like FREE or GUARANTEED, and skips generic openers like "quick question" or "following up". The tester scores all of these in real time.

How long should a cold email subject line be?

Aim for 30–50 characters. Most inboxes truncate subject lines around 40 characters on mobile, which is where many recruiters first see your email. Shorter than 15 chars usually feels vague; longer than 75 chars gets cut off.

Should I use the recruiter's name in the subject line?

When you have the name, yes — referencing a specific person or company signals the email is not a mass send. The tester rewards proper-noun personalization and warns when the subject reads as generic.

Are questions better than statements in subject lines?

A subject ending in a question invites a reply and tends to perform slightly better in cold outreach. Statements are fine too — what matters more is that the subject is specific and not generic.

What spam words should I avoid?

Common spam-flag words include FREE, GUARANTEED, URGENT, ACT NOW, AMAZING, INCREDIBLE, and CONGRATULATIONS. The tester checks against ~80 common triggers. One or two are usually recoverable; stacking them tanks deliverability.

Is this subject line tester free?

Yes. The scorer runs entirely in your browser — your subject lines are never sent to a server. If you want to draft the full personalized email, find the recruiter's email, and track follow-up, InTouch is free to try with the first 3 AI generations on us — no credit card required.

Keep exploring

Related job-search outreach guides

How to cold email recruiters for a job

A full walkthrough of the cold email flow — from finding contacts to writing the body and timing follow-up.

Cold email templates for job seekers

Real templates for different recruiter outreach scenarios, with the variables to personalize.

Recruiter email finder

Find recruiter emails from LinkedIn profiles and move straight into outreach in one workflow.

Full InTouch product page

See the full Chrome extension plus dashboard workflow, pricing, demo, and FAQ.

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