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Free Online Video Converter

Convert any video format instantly in your browser using FFmpeg WebAssembly. MorphFlux supports MP4, MKV, AVI, MOV, WEBM, FLV and more. Extract audio, create animated GIFs, or capture still frames — all locally on your device.

When would you need this?

Common scenarios where converting video formats saves time and improves compatibility.

Extract audio from video

Convert MP4, MKV, or MOV files to MP3 or WAV to extract just the audio track. Perfect for saving lectures, podcasts, or music video soundtracks for offline listening.

Convert for device compatibility

Convert MKV, AVI, or MOV files to MP4 for playback on smart TVs, phones, and tablets that don't support every video format natively.

Create animated GIFs

Convert short MP4 or MOV video clips to animated GIF for sharing on social media, messaging apps, forums, and documentation.

Prepare video for web

Convert MP4 to WEBM for use as HTML5 video on websites. WEBM is royalty-free and optimized for browser streaming.

Capture video thumbnails

Extract a PNG or JPG frame from any video file. Perfect for creating video thumbnails, preview images, and documentation screenshots.

Convert iPhone and Mac recordings

Convert MOV files recorded on iPhone or Mac to MP4 for sharing with non-Apple users or uploading to video platforms.

Supported Formats

MorphFlux supports all video formats. Convert between video formats, extract audio, create GIFs, or capture frames.

MP4

MPEG-4 Part 14 — the most universally compatible video format, supported by every device and platform. The standard format for online video, streaming, and sharing.

MKV

Matroska Video — an open-source container format that supports virtually any video and audio codec. Popular for high-quality video files and media collections.

AVI

Audio Video Interleave — a legacy Microsoft video format from 1992. Still used in older recordings and software, but lacks modern compression efficiency.

MOV

QuickTime Movie — Apple's video format used by iPhone, iPad, Mac, and QuickTime. High quality but may require conversion for non-Apple devices.

WEBM

Open-source video format developed by Google for web streaming. License-free and supported by all modern browsers, ideal for HTML5 video on websites.

FLV

Flash Video — a legacy format originally used for streaming video on the web via Adobe Flash Player. Largely replaced by MP4 but still found in older video archives.

Frequently Asked Questions

Common questions about converting video formats online.

Which video formats are supported?

MorphFlux supports MP4, MKV, AVI, MOV, WEBM, and FLV as input formats. Output formats include MP4, MOV, MKV, WEBM, MP3, WAV, GIF, PNG, and JPG.

Are my video files uploaded to a server?

No. All video conversions run entirely in your browser using FFmpeg WebAssembly. Your files never leave your device.

Is there a file size limit?

Video files up to 200MB are supported. Since conversion happens in your browser, very large files may require significant device memory.

How long does video conversion take?

Conversion time depends on your device, file size, and output format. Simple conversions like extracting audio complete quickly. Full video re-encoding may take several minutes for large files.

Can I extract audio from a video?

Yes. Upload any MP4, MKV, MOV, AVI, or WEBM file and select MP3 or WAV as the output format to extract the audio track.

How do I create a GIF from a video?

Upload your MP4 or MOV file and select GIF as the output format. For best results, use short clips under 10 seconds. Longer clips produce very large GIF files.

Can I convert iPhone MOV videos?

Yes. MOV files recorded on iPhone are fully supported. Convert to MP4 for universal compatibility across all devices and platforms.

What is the best format for uploading to YouTube?

MP4 with H.264 video codec is the recommended format for YouTube uploads. Most video converters on MorphFlux output MP4 by default.

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