Tiny tools for cleaner inboxes.
A small kit of free utilities to help you parse, format, and tame your email workflow.
Email Header Analyzer
Email header analyzer that parses raw headers to reveal routing hops, SPF, DKIM, and DMARC results, delivery delays, and a spam score. Free and private.
Email Rate Opener Calculator
Email open rate calculator that turns sent, delivered, opened, and bounced counts into open and bounce rate percentages instantly. Free and simple.
Email Read Time Estimator
Email read time estimator that counts words, sentences, and characters and calculates reading time from your chosen reading speed. Free and instant.
Gmail Filter Rule Generator
Gmail filter generator that builds search queries from sender, subject, keyword, size, and date conditions, with the exact syntax and setup steps. Free.
Meeting Agenda Generator
Meeting agenda generator with ready-made templates for 8 meeting types, from standups to client calls and all-hands. Customize topics and export fast.
Meeting Cost Calculator
Calculate the exact dollar cost of any meeting using attendee count, hourly rate or salary, and meeting duration. Fast, free, and easy to use.
Remove Duplicate Lines
Remove duplicate lines from any list online. Free duplicate line remover with case-sensitivity, trim, and keep-first-or-last options. Runs in your browser.
Spam Trigger Word Checker
Spam word checker that scans email copy for trigger words and phrases, highlights each match, and returns a spam score. Free and private.
SPF Record Generator
Create a valid SPF record in seconds. Build DNS TXT values with includes, IPs, and policy modes to improve email deliverability and sender trust.
Text Case Converter
Text case converter that changes text to UPPERCASE, lowercase, Title Case, or sentence case in one click. Free, fast, and runs in your browser.
Unsubscribe Email Generator
Generate short, compliant unsubscribe emails and List-Unsubscribe headers — responsive, copyable, and ready for use.