WordPress, Blogger, Tumblr, Write.as, Jekyll, Shareist, Postagon, Bear Blog, Blot, Directus, Gatsby, Redaxscript, DEV Community, Websites for Trello, Netlog, Gridsome, CMS.js, exploreB2B, MaxSite CMS, Thingamablog, Apache Sling CMS, Greymatter, Metalsmith, Static Site Boilerplate, CloudInclude, monastic-browser, Blosxom, Scriptogr.am, Moboom, Pages10, Notelr, BlogPress, Tclssg, Sinapps, BigPress CMS, Grassy, Svbtle, JoomBlog, Tinypress are some alternatives to Postach.io.