Is the flv compressor free?

Yes, you can use the flv compressor for free directly in your browser, with no account required.

Are my files uploaded anywhere?

No. It works offline in your browser without uploading: the compression runs entirely on your device, so your files are never sent to a server. Nothing is stored or seen by us.

Which formats are supported?

The flv compressor supports FLV and more. Just add your file above to get started.

Does it work on mobile?

Yes, the tool runs in modern mobile browsers on both iOS and Android, as well as on desktop.

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FLV Compressor

Compress FLV video files to reduce file size.

100% Local

No files ever leave your computer. Everything happens in your browser.

Privacy First

We don't store your files. Your privacy is our top priority.

Lightning Fast

No uploads, no downloads, just instant processing.

?How to use the FLV Compressor

Add your file

Drag and drop your file into the dropzone above, or click to select it from your device.

Process locally

Your browser handles the compression on your own device. Nothing is uploaded.

Download the result

When it finishes, download your file instantly and privately.

Private by design

Your files are processed on your own device and never leave your computer, which makes the flv compressor safe for confidential documents and personal media.

No limits, no waiting

Because there is no upload step, compression starts instantly and is not capped by cloud file-size limits.

About the FLV Compressor

Compress FLV video files to reduce file size. The flv compressor works directly inside your web browser, so you can compress your video files without installing any software or creating an account. Unlike most online tools that send your files to a remote server, Joy File Convert performs the compression locally on your device using WebAssembly. That keeps your files completely private and removes the upload size limits that slow other services down. It supports FLV and more.

Frequently Asked Questions

Need to convert hundreds of files?

Get our desktop app for batch processing, larger file support, and offline access.

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Privacy Guaranteed

All processing is performed locally in your browser. We never see your files. No cloud storage, no data harvest.