Convert FLV to MP4 on Mac
Convert FLV files to MP4 format on your Mac with Jollycat. Adobe Flash video format. Legacy format from the Flash era, still found in older web video archives. All processing runs locally on your Mac — no cloud processing and no uploads required for conversion.
FLV vs MP4
| Property | FLV | MP4 |
|---|---|---|
| Type | container | container |
| Compression | H.263/VP6/H.264 + MP3/AAC | H.264/H.265 + AAC |
| Container | Yes | Yes |
| Common Codecs | H.263, VP6, H.264, MP3, AAC | H.264, H.265, AAC, MP3 |
| File Extension | .flv | .mp4 |
| Key Advantage | Common in legacy archives | Universal device compatibility |
How to Convert FLV to MP4 on Mac
Open your FLV file
Drag and drop your .flv file onto the Jollycat icon in your macOS dock or menu bar. Jollycat instantly detects the format.
Choose MP4 as output
Select MP4 from the conversion options. Adjust quality settings, bitrate, or resolution if needed.
Convert and save
Click Convert and Jollycat processes the file instantly on your Mac. No uploads required, no waiting — everything runs locally on Apple Silicon.
When to Convert FLV to MP4
MP4 advantages
Universal device compatibility. Excellent compression.
FLV limitations
Obsolete format. Flash is discontinued.
Common use cases
Video sharing and streaming, Social media upload, Mobile video playback.
FLV to MP4 Conversion Tips
Use Jollycat's trim and crop tools to edit your video before converting. This saves time by only processing the parts you need.
For sharing online, MP4 with H.264 codec provides the best balance of quality and compatibility.
MP4 uses H.264 (AVC) or H.265 (HEVC) video codecs with AAC audio for maximum compatibility.
Frequently Asked Questions
Is the FLV to MP4 conversion free?
Jollycat is a one-time purchase for $9.99. Once purchased, you can convert FLV to MP4 and use all 1,650+ conversion paths with no limits.
Does converting FLV to MP4 require an internet connection?
No. Jollycat processes everything locally on your Mac. Your FLV files never leave your device — all conversion happens offline using Apple Silicon.
Can I batch convert multiple FLV files to MP4?
Yes. Drag multiple FLV files onto Jollycat and convert them all to MP4 at once. Batch processing is built in.
Ready to Convert FLV to MP4?
Jollycat handles FLV to MP4 conversion and 1,650+ other format conversions. All offline on your Mac.
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