Video Conversion

Convert FLV to MOV: Free Online Converter

Convert Flash Video to QuickTime Movie online for free. Fast, secure video conversion with no watermarks or registration.

163,297件のファイルを変換済み

ファイルを選択

またはページ内の任意の場所にドラッグ＆ドロップ

FLVに対応

アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。

転送時に暗号化

変換設定: ファイルを追加すると調整できます

Trim Start

Format: HH:MM:SS (leave empty to start from beginning)

Trim End

Format: HH:MM:SS (leave empty to keep until end)

Volume

0100%200

0% = silent, 100% = original, 200% = double loudness

Audio Fade In

00s10

Gradually fade the audio track in over this many seconds

Audio Fade Out

00s10

Gradually fade the audio track out over the final seconds

Audio codec

Keep original audio cannot be combined with volume, fades, bitrate or sample rate.

Audio bitrate

Audio sample rate

Remove audio

Makes a silent video.

Video Codec

高度なコーデックにアップグレード

Quality (CRF)

02363

Lower = better quality, larger file. Default: 23

Encoding Speed

Slower = smaller file at same quality

Profile

H.264/H.265 encoding profile. Baseline for mobile, High for quality

Level

Constrains resolution/bitrate. Higher = more capability

Tune

Optimizes encoding for specific content types

Resolution

Frame Rate

Aspect Ratio

Resize Mode

Audio Channels

Crop X

Horizontal offset (px) from left edge

Crop Y

Vertical offset (px) from top edge

Crop Width

Width of crop area (px). 0 = no crop

Crop Height

Height of crop area (px). 0 = no crop

Audio Tracks

Built-in Subtitles

Subtitles already inside the source file

Rotate

Flip horizontally

Flip vertically

Strip Metadata

Remove EXIF data, GPS, camera info

Video bitrate

Replaces the quality setting when chosen.

安全な転送

HTTPS暗号化アップロード

プライバシー優先

ゲストのファイルは約2時間で自動削除

登録不要

すぐに変換を開始

どこでも動作

あらゆるブラウザ、あらゆるデバイス

変換成功率をリアルタイムで見る

FLVからMOVへの変換について詳しく見る

FLV から MOV への設定

エンジン

メディア

設定

調整できる設定: 31

Trim Start
Trim End
Volume
Audio Fade In
Audio Fade Out
Video Codec
Quality (CRF)
Encoding Speed
Profile
Level
Tune
Resolution

変換方法

アップロードエリアにドラッグするか、クリックして選択し、.flvファイルをアップロードしてください。

必要に応じて出力設定を調整してください。デフォルト設定ではオリジナルの品質を維持します。

「変換」をクリックし、準備ができたら.movファイルをダウンロードしてください。

FLVからMOVへの変換について

FLV (Flash Video) is Adobe's web streaming format that became obsolete with the end of Flash in 2020. MOV (QuickTime File Format) is Apple's multimedia container, developed by Apple Computer in 1991 alongside QuickTime. MOV uses the same ISO base media file format that later became MP4, but adds Apple-specific features like edit lists, multiple timelines, and ProRes codec support. MOV is the native video format for macOS and iOS, and the standard delivery format for professional video production with Apple tools.

FLVをMOVに変換する理由

Final Cut Pro, Motion, and Compressor use MOV as their native format. If you are importing FLV content into an Apple-based video editing workflow, MOV conversion eliminates compatibility warnings and ensures all timeline features work correctly. MOV also supports ProRes encoding, which provides visually lossless editing quality with efficient seek performance.

主な活用例

Importing FLV clips into Final Cut Pro X for professional editing and color grading
Preparing FLV screen recordings for integration into Keynote presentations on Mac
Converting FLV source material for Apple Motion compositing and effects work
Creating QuickTime-compatible deliverables from FLV sources for broadcast workflows
Archiving FLV recordings in Apple's native format for long-term preservation on macOS systems

仕組み

FFmpeg encodes or remuxes FLV content into a QuickTime MOV container. For editing workflows, ProRes 422 encoding provides visually lossless quality with fast seeking. For distribution, H.264 in MOV gives excellent compression. Audio is transcoded to AAC-LC or PCM depending on the target use. MOV's atom structure (ftyp, moov, mdat) mirrors MP4 but with Apple-specific extensions for timecode tracks and edit decisions.

品質とパフォーマンス

With ProRes 422 encoding, the MOV output is visually lossless — indistinguishable from the decoded FLV source even under pixel-level inspection. With H.264, quality depends on CRF settings but typically matches or exceeds the FLV original. ProRes files are significantly larger (roughly 10-20x) but provide frame-accurate editing without decode lag.

Media EngineModerateMinimal Quality Loss

デバイス互換性

Device	FLV	MOV
Windows PC	Partial	Partial
macOS	Partial	Native
iPhone/iPad	Partial	Native
Android	Partial	Partial
Linux	Partial	Partial
Web Browser	No	No

プラットフォーム別の推奨設定

YouTube

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Instagram

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

TikTok

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Twitter/X

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Discord

Resolution: 1280x720

Bitrate: 4 Mbps

8MB free, 50MB Nitro

最良の結果を得るためのヒント

1Choose ProRes 422 for editing workflows — the larger file size is worth the editing speed improvement in Final Cut Pro
2Use H.264 in MOV for delivery or sharing — it produces compact files that play everywhere including Windows
3Match the output resolution to your editing timeline — typically 1080p or the source resolution, whichever is lower
4Set audio to PCM 16-bit if editing in Final Cut Pro to avoid audio decoding overhead during timeline playback
5Use the -movflags faststart flag to enable progressive download if the MOV will be served over HTTP

FLVとMOVの比較

特徴	FLV	MOV
正式名称	Flash Video	Apple QuickTime Movie
拡張子	.flv	.mov

よくある質問

Use ProRes for editing in Final Cut Pro, DaVinci Resolve, or Motion — it provides instant seeking and zero decode delay on the timeline. Use H.264 for distribution and playback — it produces much smaller files.

Windows can play MOV files through VLC, Windows Media Player (with H.264 codec), or by installing the QuickTime player. Most modern Windows applications handle MOV with H.264 without issues.

ProRes 422 is the standard for most editing. ProRes 422 LT is 30% smaller with minimal quality difference. ProRes 422 HQ is for archival masters. ProRes 4444 preserves alpha channels. For FLV sources (typically 480p-720p), ProRes 422 is more than sufficient.

MOV and MP4 share the same underlying ISO base media file format but differ in specific features. MOV supports Apple-specific extensions like edit lists and timecode tracks. For most playback scenarios, they are interchangeable. MOV is preferred for Apple editing workflows.

FLV has minimal metadata (onMetaData events with duration, width, height). These basic properties are mapped to MOV's metadata atoms. MOV supports far richer metadata including GPS coordinates, camera info, and copyright notices.

Yes, but MP4 is preferred for web streaming because it has broader browser support. MOV with H.264 plays in Safari natively and in other browsers with media framework support, but MP4 is the universal web standard.

他の形式をMOVに変換

DivX to MOV M2TS to MOV M4V to MOV MOD to MOV MP4 to MOV MTS to MOV