Free File Converter
Drop images, audio, or video and convert them to any format. Everything runs in your browser. No uploads, no limits, no account needed.
Loading converter engine... (~31 MB, one-time download)
How it works
1. Drop your files
Drag and drop any image, audio, or video file. Add as many as you want.
2. Pick a format
Choose your output format from 40+ options. We pick a sensible default for you.
3. Download
Hit convert and download your file. That's it. Everything happens on your device.
What you get
Runs in your browser
No server-side processing. Your files are converted locally, on your own machine.
Private by default
Nothing gets uploaded. Your files never leave your device. Period.
No limits
No file size cap, no daily quotas, no watermarks. Convert as much as you want.
200+ formats
MP4, WebM, MKV, AVI, MOV, MP3, WAV, FLAC, PNG, JPG, WebP, AVIF, and more.
Batch processing
Drop a bunch of files and convert them all at once. Download individually or all together.
Quality controls
Adjust image quality, audio bitrate, and video compression. Saved across sessions.
Supported formats
Video
MP4, MKV, WebM, AVI, MOV, GIF, WMV, FLV, TS, M2TS, MPG, MPEG, 3GP, 3G2, M4V, F4V, VOB, MTS
Audio
MP3, WAV, AAC, OGG, FLAC, M4A, WMA, Opus, AC3
Image
PNG, JPG/JPEG, WebP, GIF, BMP, TIFF, AVIF, ICO, SVG (input only)
Questions
Is this actually free?
Yes. No hidden costs, no freemium upsell on the converter itself. Use it as much as you want.
Are my files uploaded anywhere?
No. All processing runs locally in your browser. Your files stay on your device the entire time. We never see them.
What formats can I convert between?
Over 40 formats across video (MP4, WebM, MKV, AVI, MOV...), audio (MP3, WAV, FLAC, OGG, AAC...), and image (PNG, JPG, WebP, AVIF, GIF...). You can also extract audio from video, or convert video to GIF.
Is there a max file size?
No hard limit from our side. Since everything runs in your browser, the practical limit depends on your device's available memory. A few hundred MB should work fine on most machines.
How does it work under the hood?
The converter runs FFmpeg directly in your browser. When you drop a file and hit convert, the processing happens right on your machine. Nothing gets sent to a server.
Does it work on mobile?
Yes, on modern mobile browsers. Smaller files work great. Larger video files might be slow or run into memory limits on older phones.
Can I convert multiple files at once?
Yes. Drop as many files as you want, pick formats for each one (or set them all at once), and hit "Convert all". Files are processed one after another.
Need to convert at scale?
Our FFmpeg API can process thousands of files programmatically. Plug it into Zapier, Make, n8n, or call it from your own code.