免费在线日志查看器。上传或粘贴日志文件，支持语法高亮、错误过滤、搜索、时间戳解析，纯前端本地处理。
点击上传或拖拽日志文件到此处
支持 .log .txt 等文本格式
No. Log Viewer is a web-based tool — just open it in your browser and start using it. No downloads, plugins, or extensions required.
Log Viewer has no usage limits — it's free and unlimited. Since processing is done client-side, speed depends on your device. For very large files, we recommend processing in batches for the best experience.
Yes. Log Viewer is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.
No. Log Viewer uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.
Absolutely. All processing happens locally in your browser. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.
Yes, Log Viewer is completely free to use. No registration or login required — all features are available immediately.