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Free tools. No signup required.
Standalone utilities we built for our own team, opened up for everyone. Everything runs in your browser - nothing you paste is ever uploaded. More tools ship every month.
Free tools
Everything you need before you hit send
Utilities for one job each in the outbound workflow. All free, no signup, and every one runs entirely in your browser. New tools are added regularly.
Deliverability
SPF / DKIM / DMARC generator
Records built for your Google Workspace setup. No guessing syntax - answer a few questions and copy the records straight into your DNS panel.
- Google Workspace presets
- SPF include builder
- DMARC policy selector
- Copy-ready DNS values
DNS record auditor
Paste the SPF and DMARC strings you already have. We parse the syntax, count DNS lookups, and flag the settings that quietly hurt deliverability.
- SPF lookup counter (10 limit)
- Soft-fail and +all warnings
- DMARC policy strength check
- Plain-English fixes
Domain warmup calculator
Plan a safe ramp for a new inbox over 4 to 8 weeks. Get a weekly sending schedule based on your starting volume and your target.
- 4, 6, and 8 week plans
- Per-inbox daily volume
- Engagement ratio targets
- Copy the whole schedule
Sending schedule planner
Tell us how many mailboxes you run and how many emails you want out per day. Get a day-by-day table you can hand to your VA or import into your sequencer.
- Per-mailbox daily split
- Working-day aware
- Ramp or flat mode
- Download as CSV
Copy
Cold-email subject-line linter
Catch spam triggers and length issues before sending. Score your subject line against what actually lands in primary inboxes.
- Spam-word detection
- Length & readability score
- Personalization check
- Instant 0-100 rating
Email body spam scanner
Paste your whole email. We highlight spam-trigger words, shouting caps, punctuation abuse, and link density that push mail into the promotions tab.
- Highlighted trigger words
- Caps and punctuation ratio
- Link and image density
- Word count guidance
Cold email template library
A filterable library of cold email templates by use case. Every template is short, plain-text, and written to get a reply instead of a spam report.
- Agency, SaaS, recruiting, local
- First touch and follow-ups
- One-click copy
- Merge tags included
Follow-up sequence builder
Pick a goal and get a full multi-touch sequence with timing, subject lines, and body copy you can paste straight into your sending tool.
- Goal-based sequences
- Day-by-day timing
- Subject + body per step
- Export as text or CSV
Lists
CSV list cleaner
Drop in a CSV, pick the email column, and get back a clean file. Duplicates removed, whitespace trimmed, invalid rows dropped. Nothing leaves your browser.
- Duplicate removal
- Whitespace and case normalizing
- Invalid row filtering
- Download the cleaned CSV
Email permutator
Enter a first name, last name, and company domain. Get every common corporate address pattern so you can find the right contact before you buy data.
- 20+ address patterns
- Initials and separators
- Copy all at once
- Works with any domain
Email syntax validator
Paste a list of addresses and get an instant split into valid, invalid, role-based, and disposable. Pure syntax and pattern checks, no live verification.
- Syntax validation
- Role account detection
- Disposable domain list
- Copy each bucket
Lead list cost estimator
Enter how many leads you need. See how many batches that is, what it costs at our flat rate, and the delivery window before you place the order.
- Live batch rounding
- Flat $25 / 10,000 pricing
- Cost per lead breakdown
- Delivery window estimate
Missing something?
Tell us which tool to build next
These are free forever. If there is a utility you keep rebuilding in a spreadsheet, send it over and we will ship it here.
Ready to stop wiring DNS at midnight?
Launch your first mailboxes or your first lead list today. Cancel anytime.