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专业视频转换

支持主流视频格式，智能压缩，分辨率调整，音频提取，专业级输出

4k 支持4K compress 智能压缩 music_note 音频提取 speed 专业引擎
videocam

拖拽视频到这里

或点击选择文件

支持 MP4, AVI, MOV, MKV, WebM, FLV, WMV 等格式 • 最大500MB

Video Tools Online (Convert, Compress, Extract)

Video files get big fast—especially screen recordings and phone footage. FastlyConvert helps you compress videos for sharing, extract audio for podcasts, and convert formats when a platform rejects your upload.

Common workflows

  • Compress MP4 for email, WhatsApp, and web upload
  • MP4 to MP3 to get audio-only
  • Format conversion when devices or editors do not support a codec

Quick compression guide

  • Best first step: reduce bitrate slightly before dropping resolution
  • If size is still too big: 1080p → 720p keeps decent clarity for most sharing
  • For screen recordings: lowering framerate can also help (if you support it)

Privacy & Security

To process your file, FastlyConvert temporarily uploads it to our servers, converts it, and then automatically deletes it within 24 hours. Transfers use HTTPS encryption. We do not sell your files or use them to build public datasets. If you need immediate deletion assistance, contact us at support@fastlyconvert.com. We recommend compressing only what you need—trim long videos first when possible to reduce processing time.

FAQs

  1. Why does a platform reject my video? Often due to codec/format or file size limits. Compression usually fixes it.
  2. Will compression reduce quality? Yes, but good presets balance sharpness and size.

Copyright & acceptable use: Please upload only files you own or have permission to use. Do not upload illegal, infringing, or sensitive personal content.

专业视频处理功能

强大的专业视频处理能力

4k

支持4K分辨率

从SD到4K Ultra HD全覆盖

compress

智能压缩

在保证质量的同时减小体积

music_note

音频提取

提取视频中的音频为MP3

speed

极速处理

专业引擎保证速度

high_quality

专业品质

多种质量预设任意选择

security

安全处理

加密传输，处理后自动删除

Popular Video Conversions

Quick access to our most popular video conversion tools

compress Video Compressor

Reduce video file size while keeping quality
music_note MP4 to MP3

Extract audio from video files
gif Video to GIF

Create animated GIFs from videos
movie MOV to MP4

Convert Apple MOV to universal MP4

Frequently Asked Questions

Find answers to common questions about video conversion. Can't find what you're looking for? Contact us.

What video formats does FastlyConvert support?

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FastlyConvert supports a wide range of video formats including MP4, AVI, MOV, MKV, WebM, FLV, WMV, and GIF. You can convert between any of these formats. MP4 is recommended for universal compatibility, MOV for Apple devices, WebM for web use, and MKV for high-quality archiving with multiple audio tracks.

What is the maximum video file size I can convert?

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Free users can convert video files up to 500MB. Pro users have access to larger file sizes and longer video durations. For very large files, consider compressing them first using our video compressor tool, which can significantly reduce file size while maintaining quality.

How long does video conversion take?

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Conversion time depends on file size, video length, output format, and quality settings. A typical 5-minute HD video takes 1-3 minutes to convert. 4K videos and higher quality settings take longer. You'll see a progress indicator showing real-time conversion status including parsing, encoding, and packaging stages.

What resolution options are available?

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We support multiple resolution options: 4K Ultra HD (3840×2160), Full HD (1920×1080), HD (1280×720), SD (854×480), and the option to keep original resolution. Choose 4K for highest quality, Full HD for excellent quality with smaller files, HD for good balance, and SD for smallest file size.

Will video quality be reduced during conversion?

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Quality depends on your settings. Choose 'High Quality' (5000 kbps) for best results with larger files, 'Medium Quality' (2500 kbps) for balanced quality and size, or 'Low Quality' (1000 kbps) for smallest files. We use professional FFmpeg encoding to maintain maximum quality at each setting level.

Can I extract audio from a video?

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Yes! FastlyConvert offers three audio options: Keep Audio (preserves original audio track), Remove Audio (creates a silent video), and Extract Audio (exports the audio as a separate MP3 file). Audio extraction is perfect for creating podcasts from video content or saving music from videos.

What is the difference between MP4, AVI, MOV, and MKV formats?

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MP4 is the most universal format, compatible with virtually all devices and platforms. AVI offers high quality but larger files. MOV is Apple's format, ideal for Mac and iOS devices. MKV is an open-source format that supports multiple audio tracks and subtitles, great for archiving. WebM is optimized for web streaming.

How can I reduce video file size?

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To reduce file size: 1) Lower the resolution (e.g., from 4K to 1080p), 2) Choose 'Low' or 'Medium' quality setting, 3) Reduce frame rate from 60fps to 30fps, 4) Convert to a more efficient format like MP4 or WebM. For dedicated compression, use our Video Compressor tool which can reduce file size by 50-80%.

Are my videos secure during conversion?

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Yes, security is our priority. Videos are uploaded to secure servers using HTTPS encryption, processed by professional FFmpeg engines without human access, and automatically deleted within 24 hours after conversion. We never store, share, or analyze your video content.

Can I convert videos on mobile devices?

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Yes, FastlyConvert works on any device with a modern web browser including smartphones and tablets (iOS and Android). Simply visit our website, upload your video, and download the converted file. No app installation required. For best experience on mobile, we recommend a stable WiFi connection.

What frame rate should I choose?

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Choose 60 FPS for gaming videos, sports, or action content where smooth motion is important. 30 FPS is standard for most videos and offers good quality with smaller file size. 24 FPS gives a cinematic look similar to movies. Higher frame rates create smoother videos but result in larger file sizes.

Do I need to install any software?

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No, FastlyConvert works entirely in your web browser. Simply upload your video, choose your settings, and download the converted file. No software installation, plugins, or registration required. Our cloud-based processing handles all the heavy lifting using professional FFmpeg encoding technology.