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Video conversion guides
How to Convert a Video to MP4 for Free (Step by Step)
A plain walkthrough of converting a video to MP4 in your browser: what to click, what settings mean, how long it takes and what can go wrong.
MP4 vs MOV vs MKV vs AVI vs WebM: What Is the Difference?
Video file extensions are containers, not quality levels. Learn what MP4, MOV, MKV, AVI and WebM each are, and which to pick for your situation.
How to Convert MOV to MP4 (iPhone and Mac Videos)
Why iPhone and Mac videos are MOV files, why they sometimes will not play elsewhere, and how to convert them to MP4 in your browser.
How to Extract Audio From a Video as an MP3
Turn a video into an MP3 audio file in your browser. What bitrate you get, what quality to expect, and the limits to know about.
How to Turn a Video Into an Animated GIF (and Why GIFs Get So Big)
Convert a video clip to an animated GIF in your browser, with honest notes on size, colors, frame rate and when MP4 or WebM is a better choice.
How to Make a Video File Smaller Without Installing Software
What actually determines video file size, and how lowering the resolution while converting can shrink a file. Realistic expectations included.
MP4 to WebM: When Should You Use WebM?
What WebM is, where it is a good fit, where MP4 is safer, and what the WebM option on this converter produces.
Are Online Video Converters Safe? How to Tell Upload Sites From Local Ones
Many online converters upload your video to a server. Learn the privacy risks, how to check whether a tool uploads your files, and what to look out for.
What Is H.264, and Why Does MP4 Play Almost Everywhere?
A plain-language explanation of the H.264 video codec, AAC audio and the MP4 container, and why that combination is the default for compatibility.
How to Convert MKV to MP4 (and What You Might Lose)
Why MKV files do not always play on TVs and phones, how to convert them to MP4 in your browser, and what happens to subtitles and extra audio tracks.
How to Convert Several Videos at Once and Download Them as a ZIP
Add many videos to the converter, convert them in one go and download everything in a single ZIP. How the queue works and what limits to expect.
Video Conversion Not Working? Common Problems and Fixes
What to try when a browser-based video conversion fails, stalls or produces a file that will not play: memory, file format, resolution and browser tips.