UNIVERSAL MEDIA CONVERTER

MP4 to FLV Converter

Convert MP4 video to FLV for playback, sharing, editing or compatibility with software and devices.

MP4MOVMKVWebMMP3WAVFLAC+ more

✓ No signup✓ Batch up to 3✓ Auto cleanup

Converter readyUp to 400 MB per request • 250 MB per file

250 MB per file400 MB per request45 min max video~30 min auto-delete

Drop MP4 files here or click to browse from your device No files selected MP4, MOV, MKV, AVI, WebM, MP3, WAV, FLAC, M4A, AAC, OGG, OPUS + more

Popular:

Convert to Recommended MP4 is recommended for broad video compatibility.

Output quality

Highlarger file Balancedrecommended Smallermore compression

Smart output: MP4Best overall compatibility for video playback and sharing.

Size depends on source

Advanced settingsFine-tune the output

Maximum resolutionNever intentionally upscales; server limit: 1080p. Audio bitrateUsed by compressed audio outputs and video audio tracks. Sample rate48 kHz is common for video production. Output filename

.mp4

Available for single-file conversion. Trim startOptional HH:MM:SS or seconds. Trim endLeave blank to convert to the end. Remove audioCreate silent video output.

✓ Format-aware settings✓ Live queue progress✓ Files expire after ~30 min

RELATED CONVERTERS

More Useful Conversion Paths

Explore closely related formats without digging through a giant list of every theoretical combination.

MP4 → 3GPConvert MP4 video to 3GP for playback, sharing, editing or compatibility with software and devices. MP4 → AVIConvert MP4 into AVI for older software, devices or legacy workflows. MP4 → GIFTurn a short MP4 video clip into an animated GIF for simple visual sharing. MP4 → M4VConvert MP4 video to M4V for playback, sharing, editing or compatibility with software and devices. MP4 → MKVConvert MP4 into MKV when you prefer the flexible Matroska container for local media workflows. MP4 → MOVRe-encode MP4 video into a MOV container for compatible editing workflows. MP4 → MP3Extract audio from MP4 video as a widely compatible MP3 file. MP4 → MPEGConvert MP4 video to MPEG for playback, sharing, editing or compatibility with software and devices.

FORMAT SUPPORT

Video, Audio and Video-to-Audio Conversion

The same FFmpeg-powered engine handles common media workflows without forcing every user through technical codec menus.

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Video Converter

Convert MP4, MOV, MKV, AVI, WebM and other common video files to MP4, MOV, MKV, WebM, AVI or GIF.

MP4MOVMKVWEBMAVIGIF

♫

Audio Converter

Change MP3, WAV, FLAC, AAC, M4A, OGG, OPUS and other audio files into the format your player or workflow requires.

MP3WAVFLACAACM4AOGGOPUS

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Extract Audio

Upload a video and create MP3, WAV, FLAC, AAC, M4A, OGG or OPUS audio without keeping the video stream.

MP4 → MP3MOV → WAVMKV → FLAC

MP4 TO FLV GUIDE

Why Convert MP4 to FLV?

Convert MP4 video to FLV for playback, sharing, editing or compatibility with software and devices.

Recommended starting pointKeep the original MP4 file until you confirm the finished FLV output works in your target application.

INPUT

MP4

A widely supported multimedia container used for web video, phones, TVs, presentations and general sharing.

Broad playback compatibility and everyday video delivery.

OUTPUT

FLV

A legacy Flash Video container still encountered in older archives, applications and publishing systems.

Legacy Flash-oriented workflows that explicitly require FLV.

How to convert MP4 to FLV

Upload your MP4 file above.
Keep FLV selected as the output.
Choose Balanced quality unless your workflow needs another setting.
Open Advanced settings only if you need trimming, resolution, bitrate, sample rate or a custom filename.
Start the conversion and download the finished file when it is ready.

Before you convert

Re-encoding can change quality and file size even when the extension stays familiar. Modern browsers and devices generally prefer MP4 or WebM.

Changing a container or codec cannot recreate quality already missing from the source, so keep an important original when possible.

Explore MP4 conversions