# Free Email Tools > Practical, privacy-friendly tools for email writing, identity, deliverability, and measurement. **Canonical page:** [https://emailbump.com/tools](https://emailbump.com/tools) Email Bump tools are designed to show the reasoning behind an answer. Browser-only tools keep inputs on the device, available tools link to substantive guidance, and planned tools are not published as thin SEO pages. ## Available now - [Professional email address generator](https://emailbump.com/tools/email-name-generator.md) — Create clear, credible address ideas from a real name and domain—ranked by readability, length, and ambiguity. - [From name checker](https://emailbump.com/tools/from-name-checker.md) — Compare person, brand, and hybrid sender names before they reach the inbox. - [Subject line & preheader previewer](https://emailbump.com/tools/subject-line-previewer.md) — Preview subject and preheader combinations at realistic desktop and mobile widths. - [Accessible email signature builder](https://emailbump.com/tools/email-signature-builder.md) — Build a restrained, accessible signature with clean inline HTML, a plain-text fallback, and no tracking clutter. - [SMTP bounce code decoder](https://emailbump.com/tools/bounce-code-decoder.md) — Translate an SMTP response into a likely cause, retry decision, and next diagnostic step. - [DMARC record builder](https://emailbump.com/tools/dmarc-record-builder.md) — Build an RFC 9989 policy with reporting, test mode, external authorization, and rollout checks. - [SPF lookup budget checker](https://emailbump.com/tools/spf-record-checker.md) — Trace live include and redirect chains, count RFC lookup terms, and expose fragile or invalid policy paths. - [Email A/B test calculator](https://emailbump.com/tools/email-ab-test-calculator.md) — Compare effect ranges, practical lift, sample balance, and planned sample size without manufacturing certainty. - [Email UTM campaign builder](https://emailbump.com/tools/utm-builder.md) — Build consistent GA4 campaign links for every email placement, preserve destination parameters, and export a clean tracking manifest. - [DKIM record checker](https://emailbump.com/tools/dkim-record-checker.md) — Resolve a selector, trace provider aliases, parse every tag, and inspect RSA or Ed25519 public-key strength. - [Email header analyzer](https://emailbump.com/tools/email-header-analyzer.md) — Parse raw headers locally into authentication verdicts, a delivery timeline, identity roles, DKIM and ARC evidence, and policy findings. - [MX record and mail routing inspector](https://emailbump.com/tools/mx-record-lookup.md) — Resolve live MX records, map preference tiers and exchanger addresses, detect Null MX and implicit routing, and surface mail-routing risks. - [BIMI record and logo checker](https://emailbump.com/tools/bimi-record-checker.md) — Resolve a BIMI selector, parse assertion tags, review DMARC enforcement, and inspect published SVG Tiny PS and authority-evidence files. - [Domain WHOIS lookup and RDAP inspector](https://emailbump.com/tools/domain-whois-lookup.md) — Discover the authoritative registry through IANA, then inspect lifecycle dates, registrar, status locks, nameservers, DNSSEC, redaction notices, and raw RDAP JSON. - [CIDR calculator and IP subnet planner](https://emailbump.com/tools/cidr-calculator.md) — Calculate exact IPv4 and IPv6 ranges, masks, counts, binary prefixes, address membership, and child subnet manifests entirely in your browser. - [Email warmup calculator and sending ramp planner](https://emailbump.com/tools/email-warmup-calculator.md) — Build a dated, receiver-aware ramp for a new IP, domain, migration, or restart, with readiness checks, live health gates, and exportable runbooks. - [Email blacklist checker and DNSBL evidence report](https://emailbump.com/tools/email-blacklist-checker.md) — Check IPv4, IPv6, and domains against selected DNSBLs with exact query evidence, return-code interpretation, resolver calibration, and honest inconclusive states. - [Email domain reputation checker and evidence audit](https://emailbump.com/tools/domain-reputation-checker.md) — Combine receiver observations, authentication, complaints, bounces, volume changes, permission, links, DNS, and domain-age context without a fake universal score. - [Email preheader generator and preview text workshop](https://emailbump.com/tools/email-preheader-generator.md) — Turn a campaign brief into subject-aware preview-text options with transparent diagnostics, width scenarios, editable drafts, and HTML, CSV, and JSON exports. - [Spam trigger word checker and email content risk review](https://emailbump.com/tools/spam-trigger-word-checker.md) — Review plain text or HTML for deceptive framing, unsupported claims, pressure clusters, phishing resemblance, unclear links, structural risks, and compliance-readiness gaps. - [DNS propagation checker for email records](https://emailbump.com/tools/dns-propagation-checker.md) — 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. - [CAN-SPAM readiness checker for commercial email](https://emailbump.com/tools/can-spam-readiness-checker.md) — Review sender identity, subject, ad identification, postal address, opt-out evidence, suppression operations, and vendor oversight without manufacturing a legal-compliance score. - [Email word counter and structure analyzer](https://emailbump.com/tools/email-word-counter.md) — Count subject, preheader, and visible body copy; estimate reading time; inspect sentences, paragraphs, repetition, links, CTAs, images, headings, lists, and HTML source size. - [SPF record generator and policy planner](https://emailbump.com/tools/spf-record-generator.md) — Build an ordered RFC 7208 policy with editable mechanisms, visible qualifiers, a static DNS lookup floor, safe TXT splitting, deployment evidence, and exports. - [List-Unsubscribe header generator](https://emailbump.com/tools/list-unsubscribe-header-generator.md) — Generate RFC 8058 one-click headers with personalized HTTPS POST, optional mailto and List-ID, folding evidence, DKIM coverage guidance, and suppression checks. - [Email bounce rate calculator and segment analyzer](https://emailbump.com/tools/email-bounce-rate-calculator.md) — Calculate weighted hard, soft, unclassified, and total bounce rates by segment with exact denominators, Wilson intervals, editable house thresholds, projections, and exports. - [Email list growth calculator and retention planner](https://emailbump.com/tools/email-list-growth-calculator.md) — Project active subscribers by acquisition channel and attrition component, compare an improvement scenario, solve a target, inspect equilibrium context, and export the monthly ledger. - [Email deliverability readiness audit and evidence checklist](https://emailbump.com/tools/email-deliverability-readiness-audit.md) — Audit sender identity, permission, suppression, delivery operations, monitoring, and incident response with applicability rules, evidence states, owners, and remediation exports. - [SaaS email ROI and payback calculator](https://emailbump.com/tools/saas-email-roi-calculator.md) — Compare baseline and email-influenced customer cohorts with onboarding conversion, churn reduction, expansion, gross margin, attribution, full cost, payback, sensitivity, and break-even solvers. - [Email accessibility checker and WCAG evidence audit](https://emailbump.com/tools/email-accessibility-checker.md) — 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. - [Email send time optimizer and timezone cohort planner](https://emailbump.com/tools/email-send-time-optimizer.md) — Schedule named-timezone cohorts, compare local delivery with the best global UTC dispatch, simulate throughput delays, and size controlled click, conversion, or reply tests. - [Email migration checklist and cutover control board](https://emailbump.com/tools/email-migration-checklist.md) — Plan an email provider migration with phased controls, applicability, dependencies, owners, due dates, evidence, authentication, suppression, ramp, rollback, and retirement exports. - [DKIM record generator and key rotation kit](https://emailbump.com/tools/dkim-record-generator.md) — Generate RSA or Ed25519 key pairs locally, format the exact public DNS record, inspect fingerprints and TXT chunks, and export a rotation-ready handoff. - [Email color contrast checker and palette audit](https://emailbump.com/tools/email-color-contrast-checker.md) — Audit text, links, CTAs, component boundaries, graphics, alpha colors, and light or dark email palettes against exact WCAG 2.2 thresholds. - [Email preview text generator and inbox source inspector](https://emailbump.com/tools/email-preview-text-generator.md) — Control inbox preview text with final-HTML source inspection, body-bleed detection, directional client stress tests, hidden preheader HTML, and QA exports. - [Free email spam test and deliverability risk checker](https://emailbump.com/tools/email-deliverability-score.md) — Test received-message authentication, permission, unsubscribe mechanics, structure, links, complaints, bounces, spam signals, and volume risk with a transparent point ledger. - [Email unsubscribe rate calculator and churn analyzer](https://emailbump.com/tools/unsubscribe-rate-calculator.md) — Calculate delivered and sent unsubscribe rates, uncertainty, comparable-period change, segment concentration, complaint context, and repeated-rate churn scenarios. - [Email frequency calculator and audience pressure planner](https://emailbump.com/tools/email-frequency-calculator.md) — Plan cohort-weighted email exposure, reconcile broadcast and automated touches, detect cadence collisions, and test production capacity. - [Email size checker and Gmail clipping analyzer](https://emailbump.com/tools/email-size-checker.md) — Measure UTF-8 HTML bytes, transfer-encoding overhead, MIME and attachment weight, remote assets, clipping pressure, and source cleanup opportunities. - [Cart abandonment revenue calculator and recovery margin model](https://emailbump.com/tools/cart-abandonment-revenue-calculator.md) — Model reachable abandoned carts, suppression-aware recovery steps, collected revenue, discount and order costs, contribution, and break-even. - [HTML to plain text converter for email](https://emailbump.com/tools/html-to-plain-text-converter.md) — Convert email HTML into a deliberate text/plain alternative with semantic structure, readable links, image decisions, wrapping, diagnostics, and exports. ## Planned workbench ## Design principles - Keep sensitive inputs in the browser whenever the task does not require a network request. - Explain scores, assumptions, limitations, and tradeoffs. - Do not claim an address, domain, or outcome was checked when it was not. - Connect each tool to related definitions, guides, and documentation.