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fa-5x"></i></div></div></div></div></header></div><div class="main-inner page posts-expand"><div class=tool-workspace data-tool=gc-log data-tool-group=java lang=zh-CN><nav aria-label=面包屑 class=tool-breadcrumb><a href=/tools/><i class="fa fa-arrow-left" aria-hidden=true></i> 在线工具箱</a></nav><header class=tool-header><div><span class=tool-eyebrow>BROWSER-ONLY DIAGNOSTICS</span><h1>GC 日志在线分析器</h1><p>在浏览器本地分析 Java GC 日志，统计暂停、Full GC、堆回收量和事件时间线，支持常见 JDK 8 与 Unified Logging 格式。</div><div class=tool-local-badge><i class="fa fa-shield-halved" aria-hidden=true></i><span>本地处理<small>不会上传文件</small></span></div></header><section class="tool-panel tool-input-panel" aria-labelledby=gc-input-title><div class=tool-panel-heading><div><h2 id=gc-input-title>输入 GC 日志</h2><p>支持粘贴文本或读取本地日志文件，建议单文件不超过 500MB。</div><button class="tool-button tool-button-quiet" data-action=sample type=button>载入示例</button></div><label class=tool-dropzone data-dropzone for=gc-file><i class="fa fa-file-arrow-up" aria-hidden=true></i> <span><strong>拖入 GC 日志</strong><small>或点击选择 .log / .txt 文件</small></span> <input accept=.log,.txt,text/plain data-file-input id=gc-file type=file></label><label class="tool-field tool-field-wide"><span>日志内容</span><textarea placeholder="粘贴 -Xlog:gc 输出或 JDK 8 GC 日志..." data-input id=gc-input rows=12 spellcheck=false></textarea></label><div class=tool-actions><button class="tool-button tool-button-primary" data-action=analyze type=button><i class="fa fa-chart-line" aria-hidden=true></i> 开始分析</button><button class="tool-button tool-button-quiet" data-action=clear type=button>清空</button><span aria-live=polite class=tool-progress data-progress role=status></span></div></section><section aria-live=polite class=tool-results data-results hidden><div class=tool-section-heading><div><span>ANALYSIS</span><h2>分析结果</h2></div><button class="tool-button tool-button-quiet" data-action=export type=button>导出 Markdown</button></div><div class=tool-metrics data-metrics></div><div class=tool-chart-panel><div class=tool-chart-title><strong>暂停时间线</strong><span>每个柱代表一次可识别的 GC 暂停</span></div><canvas aria-label="GC 暂停时间线" data-chart height=220></canvas></div><div class=tool-split><div><h3>诊断提示</h3><div class=tool-findings data-findings></div></div><div><h3>最慢事件</h3><div class=tool-table-wrap><table class=tool-table><thead><tr><th>时间<th>类型<th>暂停<th>堆变化<tbody data-events></table></div></div></div></section><section class=tool-empty data-empty><i class="fa fa-chart-column" aria-hidden=true></i><strong>结果会显示在这里</strong><span>解析在本地浏览器完成，不会发送日志内容。</span></section><aside aria-label=相关工具 class=tool-more><span>其他工具</span><a href=/tools/thread-dump/>Thread Dump 分析器</a><a href=/tools/jvm-options/>JVM 参数检查器</a><a href=/tools/stacktrace/>异常堆栈整理器</a><a href=/tools/memory/>JVM 内存预算计算器</a></aside><script defer src=/tools/toolkit.js></script></div></div></main><footer class=footer><div class=footer-inner><div class=beian><a href=https://beian.miit.gov.cn/ rel=noopener 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