Deliverability
Copy, DNS and a checklist you can finish before anyone sends mail.
- Cold email spam checkerHighlight bulk-mail trigger words in a subject or body. A word list, not an inbox test.Open tool
- SPF, DKIM and DMARC checkerPublic DNS for SPF lookup count, DMARC policy, MX and common DKIM selectors.Open tool
- Cold email deliverability checklistAn interactive pre-flight list saved in this browser. Nothing is sent or scored.Open tool
Copy
Subject lines, personalization rules and template sequences.
- Cold email subject line testerLength, an approximate mobile cutoff, merge tokens and spam words in one subject line.Open tool
- Cold email personalization checkerA rule-based read of whether the copy uses the details you expected to include.Open tool
- Cold email sequence generatorTemplate emails filled with your audience, problem and offer. No AI writing.Open tool
Planning
Schedules and sequences you can export and follow yourself.
- Email warmup schedule generatorA day-by-day sending ramp you can export. TWL does not warm the mailbox.Open tool
- Cold email follow-up cadence calculatorDate each follow-up from a start day and the gaps you choose, then export .ics.Open tool
- LinkedIn and email outreach sequence plannerReorder LinkedIn and email steps, set day offsets, and export the plan.Open tool
Calculators
Reply and meeting math from assumptions you can edit.
How it works
- Pick a tool for the question you have: copy, DNS, a schedule or the arithmetic.
- The tool runs in your browser. DNS checks read public records. Nothing else leaves the page.
- When you want a sequence to run, TWL Reach handles email and LinkedIn. Pricing is on the pricing page.
Questions
Are these cold email tools free?
Yes. Each tool runs in the browser without an account. TWL Reach, which runs email and LinkedIn sequences, is a separate product. Its price is on the pricing page, not on these tools.
Do the tools send email or connect to LinkedIn?
No. They check copy, read public DNS, or build a plan you can export. They do not send a test email or post to LinkedIn.
Does TWL warm inboxes?
No. TWL has no native inbox warmup. The warmup page only writes a schedule you can follow yourself.
Do the scores guarantee deliverability or replies?
No. Word lists and personalization scores are heuristics. The calculators use assumptions you edit. None of them is a placement test, a benchmark or a customer result.
Will an unknown tool address show the homepage?
No. Addresses under /free-tools that are not in this list are not the homepage. Use the cards on this page to open a tool.