{"id":1221,"date":"2026-06-24T11:34:08","date_gmt":"2026-06-24T03:34:08","guid":{"rendered":"http:\/\/wp.rungobag.cn\/index.php\/2026\/06\/24\/show-hn-extend-ui-open-source-ui-kit-for-modern-document-apps\/"},"modified":"2026-06-24T11:34:08","modified_gmt":"2026-06-24T03:34:08","slug":"show-hn-extend-ui-open-source-ui-kit-for-modern-document-apps","status":"publish","type":"post","link":"https:\/\/wp.rungobag.cn\/index.php\/2026\/06\/24\/show-hn-extend-ui-open-source-ui-kit-for-modern-document-apps\/","title":{"rendered":"Show HN: Extend UI \u2013 open-source UI kit for modern document apps"},"content":{"rendered":"<p>We&#8217;re open-sourcing 14 components &#038; examples today for PDF, DOCX, and XLSX viewers, plus bounding box citations, file upload, e-signature, and more. It&#8217;s MIT licensed and fully customizable.Demo video here: https:\/\/share.extend.ai\/kRmSGKRFWhen we started, we tried every file viewer and document component library we could find. Unfortunately, none of them had all the functionality (and polish) that we wanted, so we ended up building our own for https:\/\/extend.ai\/. It was only ever meant to be int&#8230;<\/p>\n<p><a href=\"https:\/\/www.extend.ai\/ui\">\u67e5\u770b\u539f\u6587 \u2192<\/a><\/p>\n<hr>\n<p><small>\u6765\u6e90\uff1aHacker News \u00b7 RSS \u91c7\u96c6<\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;re open-sourcing 14 components &#038; examples [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-1221","post","type-post","status-publish","format-standard","hentry","category-tech"],"_links":{"self":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts\/1221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1221"}],"version-history":[{"count":0,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts\/1221\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}