EmailQA vs MailHog

EmailQA helps teams review HTML emails by generating previews and collecting comments pinned to specific locations. Users can paste HTML or upload an.html file to create a shareable preview link. Emails render in Gmail, Outlook, and Apple Mail on real devices, with screenshots in light and dark modes. Reviewers can view and comment through a shared link without making an account. Teams can upload newer versions while retaining earlier feedback and comparing changes. Listed integrations include Mailchimp, Klaviyo, HubSpot, Constant Contact, ActiveCampaign, Campaign Monitor, ConvertKit, AWeber, Drip, and Figma. Email service provider connections use OAuth and read-only access; EmailQA says it reads templates without changing campaigns or accessing subscriber data. Slack can notify teams about comments, and users can reply in Slack threads. The REST API supports HTML uploads, real-device render requests, screenshots, and render-result webhooks; it is included in Business. The free plan is for individuals, Pro for teams and professionals, and Business for agencies and automation. Free is free; paid plans start at $20 a month. A 14-day trial is available.

MailHog is a free email testing tool for developers. Applications send mail to it over SMTP, after which users can inspect messages in a web interface or retrieve them through a JSON API. The interface displays plain text, HTML or source, supports encoded headers and updates in real time. The API can list, retrieve and delete messages, and download complete messages or individual MIME parts. Messages may also be released to real SMTP servers. MailHog supports ESMTP RFC5321, SMTP AUTH and PIPELINING, and includes a Chaos Monkey feature for failure testing. Storage defaults to memory, with MongoDB and Maildir also available. It can run from the command line, as a daemon, in Docker or on AWS Elastic Beanstalk. Its default SMTP and HTTP ports are 1025 and 8025. In-memory storage limits Elastic Beanstalk deployments to one instance; load-balanced deployments require MongoDB-backed storage. MailHog is released under the MIT license.