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.FLV file extension

To open .FLV files on Windows, right-click the .FLV file and select 'Open with'.

FLV files are video files often associated with Adobe Flash Player. Use a compatible media player to open them.

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Last updated: June 11, 2026 · Reviewed by Julian Stricker

What “reviewed” means on this page
  • Format fit: whether the “what is this file?” description matches common real-world use of the extension, including category, typical MIME types, and aliases.
  • Opening paths: whether Windows / macOS / Linux steps read plausibly for current OS dialogs and default apps; we remove fantasy menus and unsafe shortcuts.
  • Security framing: whether risk notes match the extension class (for example executables vs plain data) and whether affiliate wording does not contradict the security section.
  • Sources and further reading: whether external links point to vendors, standards bodies, or other primary references where possible; we avoid inventing details we cannot ground.
  • Limits: this is clarity and safety-messaging QA, not a guarantee that every statement is exhaustive or that every binary you download is harmless.

Full methodology in the Imprint — The Imprint also states where AI is used and what that does—and does not—replace.

Open on your device

Choose your operating system for a dedicated step-by-step opening guide.

How to open .FLV files

Use these platform-specific instructions to open .FLV files safely.

Windows

  1. Right-click the .FLV file and select 'Open with'.
  2. Choose a media player like VLC or Adobe Flash Player.
Full Windows guide

Mac

  1. Control-click the .FLV file and select 'Open With'.
  2. Use VLC Media Player or another compatible app.
Full Mac guide

Linux

  1. Right-click the .FLV file and select 'Open With'.
  2. Choose VLC Media Player or a similar application.
Full Linux guide

iOS

  1. Transfer the .FLV file to an app like VLC for iOS using iTunes or AirDrop.
Full iOS guide

Android

  1. Open the .FLV file with a media player app like MX Player or VLC for Android.
Full Android guide

Security notes

  • Only download FLV files from reputable sources.
  • Use antivirus software to scan files before opening.
  • Be cautious of FLV files with unexpected scripts or embedded content.

Complex decoders and untrusted media

Image, audio, and video decoders are large software surfaces; issues are uncommon for everyday files but show up with crafted files from unknown sources. Keeping the OS and media apps updated matters most; scanning is reasonable extra caution for downloads you cannot vouch for.

Avast

Avast offers free and premium antivirus software that protects against viruses, malware, ransomware, and phishing. Scan files before opening them to ensure safety.

Norton

Norton 360 delivers comprehensive antivirus protection, VPN, and identity theft monitoring. Scan files for threats before opening to keep your device secure.

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Can't open this file?

These are the most common causes and fixes when .FLV files fail to open.

Common reasons

  • FLV file does not open
  • Poor video quality

Fix steps

  1. Ensure a compatible media player like VLC is installed.
  2. Check the file integrity and source.
  3. Try using a different media player.

OS-specific troubleshooting

Convert .FLV to other formats

Use conversion tools to change .FLV files into formats your software supports.

What is a .FLV file?

FLV, or Flash Video, is a file format used to deliver video content over the Internet using Adobe Flash Player. It is designed for streaming and is widely used for embedding videos on websites.

Background

The FLV format was developed by Macromedia and became a popular choice for streaming video content over the web due to its efficient compression and compatibility with Adobe Flash Player. Despite the decline of Flash technology, FLV files are still used in some legacy systems and applications. They are particularly known for their use in video sharing websites and online streaming services during the early 2000s. Although Flash technology is being phased out, many media players and conversion tools still support the FLV format, allowing users to play or convert these files to more modern formats.

Common MIME types: video/x-flv

Further reading

Authoritative resources for more details on the .FLV format.

Common .FLV issues

FLV file does not open

The file may not open if the necessary software is not installed or if the file is corrupted.

  1. Ensure a compatible media player like VLC is installed.
  2. Check the file integrity and source.
  3. Try using a different media player.

Poor video quality

Low-quality playback can result from the original encoding settings.

  1. Check if a higher quality version of the file is available.
  2. Use a media player with better decoding capabilities.

FAQ

Can I convert FLV to another format?

Yes, use video conversion software like HandBrake or online converters.

Why can't I open FLV files in my browser?

Browsers no longer support Flash Player, so FLV files must be opened with a standalone media player.

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