Your input stays in the browser.
The name generator does not send names or domains to an AI model or API.
Email utility bench
Useful answers.
No mystery box.
LOCAL-FIRST WHEN POSSIBLE
Focused email tools that show their reasoning, protect your inputs, and connect the result to the next useful guide.
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The workbench
One excellent tool at a time.
Available tools are fully functional. Planned tools are shown so the collection stays coherent as it grows—without publishing thin, empty pages.
01 / IdentityAvailable
Professional email address generator
Create clear, credible address ideas from a real name and domain—ranked by readability, length, and ambiguity.
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02 / IdentityAvailable
From name checker
Compare person, brand, and hybrid sender names before they reach the inbox.
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03 / WritingAvailable
Subject line & preheader previewer
Preview subject and preheader combinations at realistic desktop and mobile widths.
Open tool
04 / WritingAvailable
Accessible email signature builder
Build a restrained, accessible signature with clean inline HTML, a plain-text fallback, and no tracking clutter.
Open tool
05 / DeliverabilityAvailable
SMTP bounce code decoder
Translate an SMTP response into a likely cause, retry decision, and next diagnostic step.
Open tool
06 / DeliverabilityAvailable
DMARC record builder
Build an RFC 9989 policy with reporting, test mode, external authorization, and rollout checks.
Open tool
07 / DeliverabilityAvailable
SPF lookup budget checker
Trace live include and redirect chains, count RFC lookup terms, and expose fragile or invalid policy paths.
Open tool
08 / MeasurementAvailable
Email A/B test calculator
Compare effect ranges, practical lift, sample balance, and planned sample size without manufacturing certainty.
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09 / MeasurementAvailable
Email UTM campaign builder
Build consistent GA4 campaign links for every email placement, preserve destination parameters, and export a clean tracking manifest.
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10 / DeliverabilityAvailable
DKIM record checker
Resolve a selector, trace provider aliases, parse every tag, and inspect RSA or Ed25519 public-key strength.
Open tool
11 / DeliverabilityAvailable
Email header analyzer
Parse raw headers locally into authentication verdicts, a delivery timeline, identity roles, DKIM and ARC evidence, and policy findings.
Open tool
12 / DeliverabilityAvailable
MX record and mail routing inspector
Resolve live MX records, map preference tiers and exchanger addresses, detect Null MX and implicit routing, and surface mail-routing risks.
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13 / DeliverabilityAvailable
BIMI record and logo checker
Resolve a BIMI selector, parse assertion tags, review DMARC enforcement, and inspect published SVG Tiny PS and authority-evidence files.
Open tool
14 / IdentityAvailable
Domain WHOIS lookup and RDAP inspector
Discover the authoritative registry through IANA, then inspect lifecycle dates, registrar, status locks, nameservers, DNSSEC, redaction notices, and raw RDAP JSON.
Open tool
15 / InfrastructureAvailable
CIDR calculator and IP subnet planner
Calculate exact IPv4 and IPv6 ranges, masks, counts, binary prefixes, address membership, and child subnet manifests entirely in your browser.
Open tool
16 / DeliverabilityAvailable
Email warmup calculator and sending ramp planner
Build a dated, receiver-aware ramp for a new IP, domain, migration, or restart, with readiness checks, live health gates, and exportable runbooks.
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17 / DeliverabilityAvailable
Email blacklist checker and DNSBL evidence report
Check IPv4, IPv6, and domains against selected DNSBLs with exact query evidence, return-code interpretation, resolver calibration, and honest inconclusive states.
Open tool
18 / DeliverabilityAvailable
Email domain reputation checker and evidence audit
Combine receiver observations, authentication, complaints, bounces, volume changes, permission, links, DNS, and domain-age context without a fake universal score.
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19 / WritingAvailable
Email preheader generator and preview text workshop
Turn a campaign brief into subject-aware preview-text options with transparent diagnostics, width scenarios, editable drafts, and HTML, CSV, and JSON exports.
Open tool
20 / DeliverabilityAvailable
Spam trigger word checker and email content risk review
Review plain text or HTML for deceptive framing, unsupported claims, pressure clusters, phishing resemblance, unclear links, structural risks, and compliance-readiness gaps.
Open tool
21 / InfrastructureAvailable
DNS propagation checker for email records
Compare SPF, DKIM, DMARC, MX, and custom DNS answers from Google Public DNS and Cloudflare with exact records, TTLs, DNSSEC flags, expected-value matching, and negative-cache evidence.
Open tool
22 / DeliverabilityAvailable
CAN-SPAM readiness checker for commercial email
Review sender identity, subject, ad identification, postal address, opt-out evidence, suppression operations, and vendor oversight without manufacturing a legal-compliance score.
Open tool
23 / WritingAvailable
Email word counter and structure analyzer
Count subject, preheader, and visible body copy; estimate reading time; inspect sentences, paragraphs, repetition, links, CTAs, images, headings, lists, and HTML source size.
Open tool
24 / DeliverabilityAvailable
SPF record generator and policy planner
Build an ordered RFC 7208 policy with editable mechanisms, visible qualifiers, a static DNS lookup floor, safe TXT splitting, deployment evidence, and exports.
Open tool
25 / DeliverabilityAvailable
List-Unsubscribe header generator
Generate RFC 8058 one-click headers with personalized HTTPS POST, optional mailto and List-ID, folding evidence, DKIM coverage guidance, and suppression checks.
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26 / MeasurementAvailable
Email bounce rate calculator and segment analyzer
Calculate weighted hard, soft, unclassified, and total bounce rates by segment with exact denominators, Wilson intervals, editable house thresholds, projections, and exports.
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27 / MeasurementAvailable
Email list growth calculator and retention planner
Project active subscribers by acquisition channel and attrition component, compare an improvement scenario, solve a target, inspect equilibrium context, and export the monthly ledger.
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28 / DeliverabilityAvailable
Email deliverability readiness audit and evidence checklist
Audit sender identity, permission, suppression, delivery operations, monitoring, and incident response with applicability rules, evidence states, owners, and remediation exports.
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29 / MeasurementAvailable
SaaS email ROI and payback calculator
Compare baseline and email-influenced customer cohorts with onboarding conversion, churn reduction, expansion, gross margin, attribution, full cost, payback, sensitivity, and break-even solvers.
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30 / WritingAvailable
Email accessibility checker and WCAG evidence audit
Audit email HTML locally for language, alt decisions, link names, heading and table structure, explicit color contrast, robust names, motion risks, and plain-text fallback.
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31 / MeasurementAvailable
Email send time optimizer and timezone cohort planner
Schedule named-timezone cohorts, compare local delivery with the best global UTC dispatch, simulate throughput delays, and size controlled click, conversion, or reply tests.
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32 / DeliverabilityAvailable
Email migration checklist and cutover control board
Plan an email provider migration with phased controls, applicability, dependencies, owners, due dates, evidence, authentication, suppression, ramp, rollback, and retirement exports.
Open tool
33 / DeliverabilityAvailable
DKIM record generator and key rotation kit
Generate RSA or Ed25519 key pairs locally, format the exact public DNS record, inspect fingerprints and TXT chunks, and export a rotation-ready handoff.
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34 / WritingAvailable
Email color contrast checker and palette audit
Audit text, links, CTAs, component boundaries, graphics, alpha colors, and light or dark email palettes against exact WCAG 2.2 thresholds.
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35 / WritingAvailable
Email preview text generator and inbox source inspector
Control inbox preview text with final-HTML source inspection, body-bleed detection, directional client stress tests, hidden preheader HTML, and QA exports.
Open tool
36 / DeliverabilityAvailable
Free email spam test and deliverability risk checker
Test received-message authentication, permission, unsubscribe mechanics, structure, links, complaints, bounces, spam signals, and volume risk with a transparent point ledger.
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37 / MeasurementAvailable
Email unsubscribe rate calculator and churn analyzer
Calculate delivered and sent unsubscribe rates, uncertainty, comparable-period change, segment concentration, complaint context, and repeated-rate churn scenarios.
Open tool
38 / MeasurementAvailable
Email frequency calculator and audience pressure planner
Plan cohort-weighted email exposure, reconcile broadcast and automated touches, detect cadence collisions, and test production capacity.
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39 / InfrastructureAvailable
Email size checker and Gmail clipping analyzer
Measure UTF-8 HTML bytes, transfer-encoding overhead, MIME and attachment weight, remote assets, clipping pressure, and source cleanup opportunities.
Open tool
40 / MeasurementAvailable
Cart abandonment revenue calculator and recovery margin model
Model reachable abandoned carts, suppression-aware recovery steps, collected revenue, discount and order costs, contribution, and break-even.
Open tool
41 / WritingAvailable
HTML to plain text converter for email
Convert email HTML into a deliberate text/plain alternative with semantic structure, readable links, image decisions, wrapping, diagnostics, and exports.
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BUILT DIFFERENTLY
The answer includes the reasoning.
Scores and tradeoffs are visible, so you can choose instead of simply trust.
Tools connect to real guidance.
Every result links to relevant definitions, guides, and sensible next steps.
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