Compress FLV
Free, fast and secure — shrink your FLV file right in your browser.
FLV
Shrink your FLV for easy sharing and upload
Compressing FLV re-encodes your video at the size you choose, cutting the file down dramatically so it uploads quicker, fits attachment limits and streams smoothly — while keeping it looking sharp.
How to compress FLV
- 1 Drop your FLV file into the compressor above.
- 2 Pick a compression level and it is optimised automatically.
- 3 Download your smaller FLV file instantly.
About FLV
FLV
Flash video
FLV is the old Flash video container. Once dominant for web streaming, it is now obsolete and almost always needs converting to a modern format like MP4.
Strengths
- Small files for its era
- Plays in legacy Flash players
- Common in old web archives
Limitations
- Obsolete — Flash is discontinued
- No support on modern devices
- Lower quality than modern codecs
Best for: Rescuing old Flash video by converting it to MP4 or WebM.
Frequently asked questions
Upload your FLV file above, pick a compression level and it is optimised automatically. When it is ready, download your smaller file — the whole thing takes just a few seconds in your browser.
You choose the balance between size and quality. “Light” keeps the video close to the original, while “Strong” maximises the saving. Even strong compression stays perfectly watchable.
It depends on the file and the level you pick, but savings of 40–80% are common — larger, less-optimised files shrink the most.
Yes. The compressor is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.