更改影片格式
更改影片格式 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
上傳影片
步驟 2
選擇新格式
步驟 3
下載轉換後的影片
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
瀏覽器中本地處理。
變更影片格式 — MP4、MOV、AVI、MKV、WebM
在 MP4、MOV、AVI、MKV 和 WebM 之間轉換影片容器，必要時使用相容編解碼器（H.264、H.265、VP9）重新編碼，更新中繼資料並確保在每個播放器、網路瀏覽器、智慧電視和 iOS 或 Android 行動裝置上流暢播放。
也試試我們的工具: 免費線上轉換影片.
技術詳情
在 MP4、MOV、AVI、WebM、MKV 或 FLV 容器之間轉換，以確保通過可靠的轉換與任何瀏覽器或設備兼容。
Why choose our online format changer
Our online format changer 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 change video format without installing heavy software like HandBrake, Adobe Media Encoder or VLC.
Cross-device compatibility — PC, Mac, iPhone, Android
Our format changer 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。