Paste your subject line and email body
Drop your existing copy into the editor. The tool accepts a cold email, a follow-up, or any professional message you want to improve.
cold email optimizer
Rewrite Any Cold Email Line by Line with Our AI Email Optimizer
Paste your draft. Get it back rewritten line by line, with every move labelled, what to cut struck through, and a bracketed prompt anywhere your research is missing.
How to use the AI email optimizer
Paste the draft you were about to send. You get it back line by line: what to keep, what to cut, what to change, and a bracketed prompt anywhere the research is still missing.
- Step 01
- Step 02
Submit your email for optimization
Run the analysis. The grader reviews structure, tone, clarity, CTA strength, and filter risk before producing the improved version.
- Step 03
Read what changed, and why
Every line is marked kept, rewritten or cut, with each move labelled and a bracketed prompt wherever your research is missing. Nothing is invented, so the placeholders show you exactly what to go and find. Everything else stays as that matter most.
- Step 04
Apply the updates and send
Use the rewritten version as-is or edit it in your own voice, then send with a clearer reason for the prospect to reply.
How the cold email grader works
The grader reads your email the way a trained prospect does: it looks for whether the first two sentences explain why you are writing to this person specifically, whether there is one clear next step, and whether the whole thing reads like a human wrote it.
Every dimension returns a score out of 100, a letter grade, and one concrete fix. Nothing is stored, nothing is sent to your prospect, and you do not need an account to run it.
How this compares to paid tools
Most cold email scoring sits behind a seat licence or a credit balance. This grader takes your draft and returns the full breakdown in seconds.
| Feature |  | Paid sequencer add-on | Paid copy tool |
|---|---|---|---|
| Price | Free | $79 to $199 per seat | $29 to $99 per month |
| Marks each line kept, rewritten or cut | |||
| Free with no card | Trial only | ||
| Labels the job each sentence does | |||
| Placeholders instead of invented details | |||
| Scores your draft on eight criteria | Free, separate tool | Two or three | |
| Keeps every real detail you already wrote | |||
| No account setup |
Who this is for
SDRs writing a new sequence
Grade step one before it goes to the whole list. One weak opener repeated 400 times is the most expensive mistake in outbound.
Founders doing their own outreach
You know the product better than anyone and it still reads like a pitch deck. The grader shows exactly which sentence loses the reader.
Sales managers reviewing rep copy
Give the team a shared standard instead of subjective feedback. Every email gets the same five scores.
Agencies writing for clients
Check a draft against a client persona before it goes for approval, and bring the score into the review call.
Recruiters reaching passive candidates
Candidate outreach fails for the same reasons sales outreach does: no specific reason to care and too big an ask.
Popular use cases
01 · Use case
Auditing a sequence before launch
Run every step through the grader. Fixing the first email usually lifts the whole sequence more than adding another follow-up.
02 · Use case
Choosing between two drafts
You and a teammate each wrote a version. Run both through the optimizer and compare what comes back: which draft needed fewer rewrites, and where each one still has research gaps to fill in. That gives you a concrete reason to pick one.
03 · Use case
Stripping AI tells out of generated copy
Generated drafts score well on clarity and badly on sounding human. The AI-written dimension shows you exactly which phrases give it away.
Frequently asked questions
Something not covered? Talk to our team.
Yes. No account, no credit card and no credit balance. Rewriting costs more to run than scoring, so the fair-use limit here is six rewrites an hour.
