免費線上壓縮影片
壓縮影片 線上 直接在瀏覽器中以高品質處理. 立即試用此工具。 - 高速, 簡單, HD畫質, 精準 100% 在瀏覽器中本地處理，檔案不會上傳到伺服器。立即免費試用。
將影片拖放到此處
支援 MP4、WebM、AVI、MOV
支援的格式
使用方法
步驟 1
上傳要壓縮的影片
步驟 2
選擇壓縮級別（輕、中、高）
步驟 3
下載壓縮後的影片
常見錯誤
- 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.
專業技巧
- 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.
隱私保護
在瀏覽器中壓縮。不會將影片傳輸到我們的伺服器。
減小電子郵件影片大小 — 免費線上，無需註冊
電子郵件附件有大小限制（通常25MB）。壓縮影片以便通過電子郵件輕鬆發送。
也試試我們的工具: 免費線上轉換影片.
技術詳情
我們的壓縮器會調整位元速率（Mbps 或 kbps）和 CRF，以最佳化檔案大小：非常適合在分享或上傳到網路之前，減輕影片的檔案大小。
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.
探索所有影片工具
只需幾次點擊即可壓縮、轉換、剪輯、調整大小和編輯影片。
相關工具
常見問題
我的影片大小可以縮小多少？
取決於選擇的壓縮等級：輕度 (約 30%)、中度 (約 60%) 或高度 (約 90%)。縮小程度也取決於來源影片及其初始編碼。
壓縮後品質損失會很明顯嗎？
輕度或中度壓縮時，肉眼幾乎難以察覺損失。高度壓縮可能會在高解析度螢幕上造成輕微的像素化。
我該為 WhatsApp 選擇哪個壓縮等級？
WhatsApp 將影片限制為 16MB。短影片使用中度壓縮，較長的影片使用高度壓縮。發送前請檢查最終大小。
如何在不太損失品質的情況下壓縮？
選擇輕度壓縮 (約 30% 縮減)。它優化編碼，同時保留 95% 的原始品質。非常適合專業影片。