Why You Might Need a Video Converter

Even after downloading a video in one format, you may need to convert it — to make it compatible with a specific device, reduce the file size, or prepare it for editing. Free, high-quality converter tools exist for every skill level, from point-and-click GUIs to powerful command-line utilities.

The Main Contenders

1. HandBrake

HandBrake is one of the most well-known open-source video transcoder tools available. It's free, cross-platform (Windows, macOS, Linux), and supports a wide range of output formats with highly configurable presets.

  • Best for: Batch encoding, compressing large files, creating device-specific presets
  • Supported output: MP4 (H.264, H.265), MKV, WebM
  • Ease of use: Beginner-friendly with presets for Apple TV, Android, PS4, etc.
  • Limitation: Cannot encode to AVI or WMV; limited input format editing

2. FFmpeg

FFmpeg is the backbone of dozens of video tools — including HandBrake. It's a command-line utility that can handle virtually any conversion, filter, or stream manipulation task imaginable.

  • Best for: Advanced users, automation scripts, maximum format flexibility
  • Supported formats: Almost everything — MP4, MKV, WebM, AVI, MOV, FLV, and more
  • Ease of use: Steep learning curve; requires typing commands
  • Limitation: No graphical interface (though GUI wrappers like Avidemux or Handbrake use it under the hood)

3. VLC Media Player

Most people know VLC as a media player, but it includes a built-in conversion tool under Media > Convert/Save. It's not as powerful as HandBrake, but it's convenient for quick, one-off conversions.

  • Best for: Quick conversions without installing extra software
  • Supported output: MP4, WebM, TS, OGG, and others
  • Ease of use: Moderate — menus can be a bit confusing

4. Avidemux

Avidemux is a lightweight, free video editor and converter with a simple GUI. It's particularly good for cutting clips and changing formats without full re-encoding (using "copy" mode).

  • Best for: Simple cuts and format changes with minimal quality loss
  • Supported output: MP4, AVI, MKV, and more
  • Ease of use: Easy once you understand the encode/copy distinction

Side-by-Side Comparison

ToolGUIBatch ProcessingFormat RangeSkill Level
HandBrakeMediumBeginner–Intermediate
FFmpeg❌ (CLI)MaximumAdvanced
VLCGoodBeginner
AvidemuxLimitedGoodBeginner–Intermediate

Which Should You Use?

For most users, HandBrake is the best starting point — it's polished, well-documented, and handles 90% of common conversion tasks. If you're comfortable with the command line, FFmpeg is unmatched in power and flexibility. For a quick conversion without opening a new app, VLC gets the job done.

A Word on Online Converters

Online video converters exist but come with trade-offs: file size limits, slower speeds, privacy concerns (your video is uploaded to a third-party server), and variable quality. For anything beyond a small, non-sensitive file, a local desktop tool is the better choice.