{"id":7047,"date":"2026-08-10T18:22:09","date_gmt":"2026-08-10T10:22:09","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/free-online-d2-diagram-editor\/"},"modified":"2026-09-09T21:14:00","modified_gmt":"2026-09-09T13:14:00","slug":"free-online-d2-diagram-editor","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/free-online-d2-diagram-editor\/","title":{"rendered":"\u7121\u6599\u306e\u30aa\u30f3\u30e9\u30a4\u30f3 D2 \u30a8\u30c7\u30a3\u30bf\u3067\u3001\u30b3\u30fc\u30c9\u3068\u3057\u3066\u306e\u56f3\u3092\u52b9\u7387\u5316\u3057\u307e\u3057\u3087\u3046"},"content":{"rendered":"<p><img alt=\"\u5ba3\u8a00\u578b\u30b3\u30fc\u30c9\u304b\u3089\u751f\u6210\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u56f3\u3092\u8868\u793a\u3059\u308b VPasCode D2 \u30a8\u30c7\u30a3\u30bf\u3002\" decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2026\/08\/vpascode-d2-editor.png\"\/><\/p>\n<p class=\"lead\"><strong>\u5ba3\u8a00\u7684\u56f3\u63cf\u753b<\/strong>\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u3001\u958b\u767a\u8005\u3001\u6280\u8853\u30e9\u30a4\u30bf\u30fc\u306b\u3068\u3063\u3066\u3001\u624b\u52d5\u306e\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u30c4\u30fc\u30eb\u3092\u6025\u901f\u306b\u7f6e\u304d\u63db\u3048\u3066\u3044\u307e\u3059\u3002\u30b3\u30fc\u30c9\u3068\u3057\u3066\u306e\u56f3\u306e\u5f62\u5f0f\u306e\u4e2d\u3067\u306f\u3001<strong>D2 \u8a00\u8a9e<\/strong>\u306f\u3001\u4eba\u9593\u304c\u8aad\u307f\u3084\u3059\u3044\u69cb\u6587\u3068\u67d4\u8edf\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u6a5f\u80fd\u3067\u969b\u7acb\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001D2 \u30b3\u30fc\u30c9\u3092\u66f8\u304d\u306a\u304c\u3089\u5373\u5ea7\u306b\u8996\u899a\u7684\u306a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u5f97\u308b\u3053\u3068\u306f\u3001\u3057\u3070\u3057\u3070\u9762\u5012\u306a\u30d7\u30ed\u30bb\u30b9\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div style=\"background-color: #f8f9fa; border-left: 4px solid #0066cc; padding: 15px; margin: 20px 0;\">\n<h2>D2 \u56f3\u30a8\u30c7\u30a3\u30bf\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n<p>\u300c<strong>D2 \u56f3\u30a8\u30c7\u30a3\u30bf<\/strong>\u306f\u3001D2 \u306e\u5ba3\u8a00\u7684\u30b3\u30fc\u30c9\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u8996\u899a\u7684\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u56f3\u3001\u30d5\u30ed\u30fc\u30c1\u30e3\u30fc\u30c8\u3001\u30b7\u30b9\u30c6\u30e0\u30de\u30c3\u30d7\u306b\u5909\u63db\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u305f\u4f5c\u6210\u74b0\u5883\u3067\u3059\u3002Visual Paradigm \u306e\u7121\u6599\u306e\u300c<a href=\"https:\/\/www.visual-paradigm.com\/features\/d2-diagram-editor\/\" rel=\"noopener\" target=\"_blank\">D2 \u56f3\u30a8\u30c7\u30a3\u30bf<\/a>\u306f\u3001\u30bc\u30ed\u8a2d\u5b9a\u306e Web \u30d9\u30fc\u30b9\u74b0\u5883\u3092\u63d0\u4f9b\u3057\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u4e26\u5217\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3001\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u6a5f\u80fd\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u7d71\u5408\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n<h2>\u306a\u305c D2 \u3067\u30b3\u30fc\u30c9\u3068\u3057\u3066\u306e\u56f3\u3092\u4f7f\u3046\u306e\u304b\uff1f<\/h2>\n<p>D2\uff08\u5ba3\u8a00\u7684\u56f3\u63cf\u753b\uff09\u3092\u4f7f\u3048\u3070\u3001\u30c1\u30fc\u30e0\u306f Git \u306a\u3069\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3068\u4e00\u7dd2\u306b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002\u30dc\u30c3\u30af\u30b9\u306e\u4f4d\u7f6e\u3084\u63a5\u7d9a\u7dda\u3092\u624b\u52d5\u3067\u8abf\u6574\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u958b\u767a\u8005\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u7684\u306b\u95a2\u4fc2\u6027\u3092\u8a18\u8ff0\u3057\u307e\u3059\uff1a<\/p>\n<pre><code>x -&gt; y: HTTP GET \/api\/v1\/users\ny -&gt; database: \u30e6\u30fc\u30b6\u30fc\u30ec\u30b3\u30fc\u30c9\u306e\u7167\u4f1a\ndatabase -&gt; y: JSON \u3092\u8fd4\u3059\ny -&gt; x: 200 OK\n<\/code><\/pre>\n<p>\u69cb\u6587\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u304c\u3001\u7d50\u679c\u3092\u8996\u899a\u5316\u3059\u308b\u306b\u306f\u5f93\u6765\u3001\u30ed\u30fc\u30ab\u30eb CLI \u30c4\u30fc\u30eb\u3084\u591a\u6bb5\u968e\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3057\u305f\u3002<\/p>\n<h2>VPasCode D2 \u30aa\u30f3\u30e9\u30a4\u30f3\u30a8\u30c7\u30a3\u30bf\u306e\u4e3b\u306a\u6a5f\u80fd<\/h2>\n<ul>\n<li><strong>\u5373\u6642\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d7\u30ec\u30d3\u30e5\u30fc\uff1a<\/strong>\u3059\u3079\u3066\u306e\u30ad\u30fc\u5165\u529b\u3067\u9045\u5ef6\u306a\u304f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u66f4\u65b0\u3057\u3001\u30c7\u30b6\u30a4\u30f3\u5909\u66f4\u306b\u5bfe\u3059\u308b\u5373\u5ea7\u306e\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u8907\u6570\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u30a8\u30f3\u30b8\u30f3\u30b5\u30dd\u30fc\u30c8\uff1a<\/strong>Dagre \u3084 ELK \u306a\u3069\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u30a8\u30f3\u30b8\u30f3\u9593\u3067\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u5207\u308a\u66ff\u3048\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u3001\u30b7\u30b9\u30c6\u30e0\u56f3\u3092\u5fae\u8abf\u6574\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u9ad8\u89e3\u50cf\u5ea6\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\uff1a<\/strong>\u5b8c\u6210\u3057\u305f\u56f3\u3092\u3001\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3084\u30ec\u30dd\u30fc\u30c8\u7528\u306b\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u30d9\u30af\u30bf\u30fc\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\uff08SVG\uff09\u307e\u305f\u306f\u9bae\u660e\u306a PNG \u753b\u50cf\u3068\u3057\u3066\u76f4\u63a5\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u6469\u64e6\u306e\u306a\u3044\u5171\u6709\uff1a<\/strong>\u30e9\u30a4\u30d6\u3067\u7de8\u96c6\u53ef\u80fd\u306a\u30d7\u30ec\u30d3\u30e5\u30fc\u30ea\u30f3\u30af\u3092\u5171\u6709\u3059\u308b\u304b\u3001\u3059\u3050\u306b\u30b9\u30ad\u30e3\u30f3\u53ef\u80fd\u306a QR \u30b3\u30fc\u30c9\u3092\u751f\u6210\u3057\u3066\u3001\u8fc5\u901f\u306a\u30b3\u30e9\u30dc\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/li>\n<li><strong>OpenDocs \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\uff1a<\/strong>\u5b8c\u6210\u3057\u305f D2 \u53ef\u8996\u5316\u3092\u305d\u306e\u307e\u307e Visual Paradigm OpenDocs \u306b\u9001\u4fe1\u3057\u3001\u81ea\u52d5\u66f4\u65b0\u3055\u308c\u308b\u6280\u8853\u7684\u306a\u30a6\u30a3\u30ad\u3084\u30ca\u30ec\u30c3\u30b8\u30d9\u30fc\u30b9\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><iframe allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" class=\"__youtube_prefs__ epyt-is-override no-lazyload\" data-no-lazy=\"1\" data-origheight=\"551\" data-origwidth=\"980\" data-skipgform_ajax_framebjll=\"\" height=\"551\" id=\"_ytid_92621\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/7CEBtQjyjNk?enablejsapi=1&amp;autoplay=0&amp;cc_load_policy=0&amp;cc_lang_pref=&amp;iv_load_policy=1&amp;loop=0&amp;rel=1&amp;fs=1&amp;playsinline=0&amp;autohide=2&amp;theme=dark&amp;color=red&amp;controls=1&amp;disablekb=0&amp;\" title=\"YouTube player\" width=\"980\"><\/iframe><\/p>\n<h2>\u30b3\u30fc\u30c9\u3068\u3057\u3066\u306e\u56f3\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u6bd4\u8f03<\/h2>\n<table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>\u6a5f\u80fd<\/th>\n<th>\u5f93\u6765\u306e CLI \u30ec\u30f3\u30c0\u30ea\u30f3\u30b0<\/th>\n<th>VPasCode D2 \u30a8\u30c7\u30a3\u30bf<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u5fc5\u8981<\/strong><\/td>\n<td>\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/td>\n<td>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u4e0d\u8981\uff08\u30d6\u30e9\u30a6\u30b6\u30d9\u30fc\u30b9\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u901f\u5ea6<\/strong><\/td>\n<td>\u624b\u52d5\u518d\u30b3\u30f3\u30d1\u30a4\u30eb<\/td>\n<td>1 \u79d2\u672a\u6e80\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d7\u30ec\u30d3\u30e5\u30fc<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u67d4\u8edf\u6027<\/strong><\/td>\n<td>D2 \u306e\u307f<\/td>\n<td>\u7d71\u4e00\u578b\uff08D2\u3001PlantUML\u3001Mermaid\u3001Graphviz\u3001ECharts\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u7d71\u5408<\/strong><\/td>\n<td>\u624b\u52d5\u30d5\u30a1\u30a4\u30eb\u57cb\u3081\u8fbc\u307f<\/td>\n<td>Visual Paradigm OpenDocs \u3078\u306e\u76f4\u63a5\u516c\u958b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u3059\u3079\u3066\u306e\u56f3\u793a\u8a00\u8a9e\u306e\u305f\u3081\u306e\u7d71\u4e00\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0<\/h2>\n<p>D2 \u8a00\u8a9e\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u8d85\u3048\u3066\u3001<a href=\"https:\/\/www.vpascode.com\/\">VPasCode<\/a>\u74b0\u5883\u306f\u30de\u30eb\u30c1\u69cb\u6587\u30a8\u30f3\u30b8\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30ec\u30ac\u30b7\u30fc\u3068\u6700\u65b0\u306e\u30c4\u30fc\u30eb\u30c1\u30a7\u30fc\u30f3\u3092\u307e\u305f\u3044\u3067\u4f5c\u696d\u3059\u308b\u958b\u767a\u8005\u306f\u3001<strong>PlantUML\u3001Mermaid\u3001ECharts\u3001SQL \u30b9\u30ad\u30fc\u30de\u3001JSON\u3001\u304a\u3088\u3073 YAML<\/strong>\u3092\u540c\u3058 Web \u30a8\u30c7\u30a3\u30bf\u5185\u3067\u8a18\u8ff0\u30fb\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3067\u304d\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u5168\u4f53\u3067\u306e\u30c4\u30fc\u30eb\u75b2\u52b4\u3092\u89e3\u6d88\u3057\u307e\u3059\u3002<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<div>\n<div>\n<h3>VPasCode D2 \u56f3\u30a8\u30c7\u30a3\u30bf\u306f\u5b8c\u5168\u306b\u7121\u6599\u3067\u3059\u304b\uff1f<\/h3>\n<div>\n<p>\u306f\u3044\u3001VPasCode D2 \u56f3\u30a8\u30c7\u30a3\u30bf\u306f\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3084\u6709\u6599\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u5fc5\u8981\u3068\u305b\u305a\u3001\u5b8c\u5168\u306b\u7121\u6599\u306e\u30d6\u30e9\u30a6\u30b6\u30d9\u30fc\u30b9\u7de8\u96c6\u3001\u5373\u6642\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d7\u30ec\u30d3\u30e5\u30fc\u3001SVG\/PNG\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<div>\n<h3>\u30aa\u30f3\u30e9\u30a4\u30f3 D2 \u30c4\u30fc\u30eb\u3067\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u30ec\u30a4\u30a2\u30a6\u30c8\u30a8\u30f3\u30b8\u30f3\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<div>\n<p>\u30aa\u30f3\u30e9\u30a4\u30f3 D2 \u30c4\u30fc\u30eb\u306f\u3001Dagre \u3084 ELK \u306a\u3069\u306e\u4eba\u6c17\u30ec\u30a4\u30a2\u30a6\u30c8\u30a8\u30f3\u30b8\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u56f3\u306e\u5411\u304d\u3084\u30ce\u30fc\u30c9\u914d\u7f6e\u3092\u81ea\u52d5\u7684\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<div>\n<h3>D2 \u56f3\u3092\u6280\u8853\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u57cb\u3081\u8fbc\u3080\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<div>\n<p>\u306f\u3044\u3001D2 \u30a8\u30c7\u30a3\u30bf\u3067\u4f5c\u6210\u3057\u305f\u56f3\u306f SVG\/PNG \u753b\u50cf\u3068\u3057\u3066\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3059\u308b\u304b\u3001Visual Paradigm OpenDocs 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