免费在线压缩视频
压缩视频 在线 直接在浏览器中以高质量处理. 立即试用此工具。 - 高速, 简单, HD画质, 精准 100% 在浏览器中本地处理，文件不会上传到服务器。立即免费试用。
将视频拖放到此处
支持 MP4、WebM、AVI、MOV
支持的格式
使用方法
步骤 1
上传要压缩的视频
步骤 2
选择压缩级别（轻、中、高）
步骤 3
下载压缩后的视频
常见错误
- Uploading a video file too large for the browser (keep it under 2 GB).
- Closing the tab before processing finishes: the conversion stops.
- Using an exotic input format (prefer MP4, WebM, MOV, AVI).
- Picking a bitrate so low that quality drops noticeably.
专业技巧
- Pick H.264 (MP4) for the widest compatibility.
- For the web, use WebM (VP9/AV1): smaller file at the same quality.
- Keep the original: processing is local but the download is final.
- On mobile, plug in the charger for long videos.
隐私保护
在浏览器中压缩。不会将视频传输到我们的服务器。
减小电子邮件视频大小 — 免费在线，无需注册
电子邮件附件有大小限制（通常25MB）。压缩视频以便通过电子邮件轻松发送。
也试试我们的工具: 免费在线转换视频.
技术细节
我们的压缩器调整比特率（Mbps或kbps）和CRF以优化文件大小：这使得您的视频在分享或上传到网络之前更轻量化。
Why choose our online video compressor
Our online video compressor stands out with 100% local processing via FFmpeg.wasm directly in your Chrome, Firefox, Safari or Edge browser — no server upload, no queue, no arbitrary size limit. You get a fast, free, no-signup, watermark-free tool compatible with all your MP4, MOV, AVI, MKV, WebM, FLV, WMV, M4V, 3GP files and more. Perfect for YouTubers, TikTokers, Instagram Reels creators, Premiere Pro editors, DaVinci Resolve, CapCut, Final Cut users, marketing pros, e-learning trainers and individuals who want to compress video online for free without installing heavy software like HandBrake, Adobe Media Encoder or VLC.
Cross-device compatibility — PC, Mac, iPhone, Android
Our video compressor works on Windows 10, Windows 11, macOS Ventura, Sonoma, Sequoia, Linux Ubuntu, Debian, Fedora, as well as iOS 16+ (iPhone, iPad), iPadOS, Android 10+ (Samsung Galaxy, Google Pixel, Xiaomi, OnePlus) and even Chrome OS on Chromebook. No native app, no APK, no .exe to download: just open the page in your favorite browser and start processing your videos. Compatible with videos from smartphones (4K HDR, slow-motion), GoPro cameras, DJI drones, OBS screen captures, After Effects exports, Loom screencasts and files downloaded from YouTube, Vimeo, TikTok, Twitch or Twitter/X.
Privacy, GDPR compliance and video security
Unlike competing services (Clideo, Kapwing, Veed.io, FlexClip, Online-Convert, Convertio, CloudConvert, FreeConvert, EZGif, Zamzar) that upload your files to remote servers in the US or Asia, our tool processes your entire video in your browser's RAM. Not a single byte is sent over the Internet, ensuring full GDPR, CCPA, LGPD and HIPAA compliance. Perfect for confidential business documents, medical, legal, educational videos, copyrighted content and any personal file you do not want to entrust to any third party.
探索所有视频工具
只需几次点击即可压缩、转换、剪辑、调整大小和编辑视频。
相关工具
常见问题
我的视频大小可以减少多少？
取决于所选择的压缩级别：轻度（约30%）、中度（约60%）或高度（约90%）。减少量也取决于源视频及其初始编码。
压缩后质量损失是否可见？
使用轻度或中度压缩时，肉眼看不出损失。高度压缩在高分辨率屏幕上可能会导致轻微的像素化。
WhatsApp应该选择什么压缩级别？
WhatsApp限制视频最大16MB。短视频使用中度压缩，长视频使用高度压缩。发送前请检查最终大小。
如何在不损失太多质量的情况下进行压缩？
选择轻度压缩（约30%的减少）。它优化了编码，同时保留了95%的原始质量。适用于专业视频。