Scrub through your video frame-by-frame, crop to 16:9 or 9:16, and export a high-resolution JPG or PNG thumbnail.
Extracting a frame from a video is incredibly easy with our tool. Simply upload your video, use the standard player controls or our fine frame-by-frame buttons to find the exact moment, and hit "Capture". You can then optionally add a bold YouTube-style text overlay and crop it to the perfect aspect ratio before downloading.
Unlike taking a screenshot of your screen, which degrades quality and includes UI elements, our tool taps directly into the browser's native rendering engine. This means you extract the exact pixels encoded in the video file, resulting in a high-resolution image export suitable for professional thumbnails.
For YouTube, the ideal thumbnail size is 1280x720 pixels (or 1920x1080) with a 16:9 aspect ratio. If your original video is in a different format, use our built-in aspect ratio cropper to ensure your thumbnail fits perfectly without black bars.
选择并导入您的视频文件（MP4、WebM 或 MOV）到提取工具中。
使用播放器控制条或微调帧按钮找到完美的一帧，然后点击“捕捉帧”。
裁剪尺寸、添加文字/贴纸、在工作室中调整画面滤镜，并下载高分辨率 JPG 或 PNG 封面。
不会。您的视频完全是在浏览器内部使用本地 JavaScript 进行处理的。您的文件绝不会离开您的电脑，确保绝对的隐私。
画面会以视频文件的原始分辨率被提取出来。您可以选择将其保存为高质量的 JPG 或 PNG 格式。
可以。您可以在工作室中使用“裁剪宽高比”下拉菜单，将画面裁剪为 9:16（Shorts/TikTok）或 16:9（YouTube）比例。
捕捉帧后，点击工作室中的“添加文本”按钮。双击画面上的文字以更改内容，并拖动来调整位置和大小。