ConvertFast
Convert Files. Fast. Simple. Free.
Convert images, audio and videos directly from your browser with a fast and simple online converter.
Image Converter
Convert JPG, PNG, WEBP and other image formats in seconds.
Convert Images
Audio Converter
Convert MP3, WAV, FLAC, AAC, OGG and other audio formats.
Convert Audio
Video Converter
Convert MP4, WEBM, MOV and other popular video formats.
Convert VideoOnline File Converter
ConvertFast helps you convert everyday media files without installing desktop software. Upload a file, choose an output format, convert, and download — with temporary storage that expires automatically.
Why use our converter?
- Fast conversions — optimized pipelines for images, audio and video.
- Easy to use — clear upload zone, simple options, direct download.
- No software installation — works in modern browsers on desktop and mobile.
- Private temporary files — uploads are deleted after 30 minutes.
- Multiple formats — popular image, audio and video containers.
- Works on desktop and mobile — responsive layout with an accessible tools menu.
How it works
- Choose your file
- Select the output format
- Convert
- Download
Supported file types
Image formats
JPG, JPEG, PNG, WEBP, GIF, BMP, TIFF
Audio formats
MP3, WAV, AAC, M4A, OGG, FLAC, OPUS
Video formats
MP4, WEBM, MOV, MKV
Frequently Asked Questions
Is the converter free?
Yes. The online file converter is free to use for the supported formats within the published upload limits.
Do I need to install software?
No. Conversions run in your browser session through our web tools — no desktop installation is required.
How long are my files stored?
Uploaded and converted files are temporary and are automatically deleted after 30 minutes.
Is my uploaded file private?
Files are stored temporarily on the server only to complete the conversion and download. They are not published publicly.
Which image formats are supported?
Common formats such as JPG, PNG, WEBP, GIF, BMP and TIFF are supported when ImageMagick is available.
Which audio formats are supported?
MP3, WAV, AAC, M4A, OGG, FLAC and OPUS are supported when FFmpeg is available.
Which video formats are supported?
MP4, WEBM, MOV and MKV are supported when FFmpeg is available.
Does it work on mobile?
Yes. The interface is designed to work on both desktop and mobile browsers.