Convert all
file formats
in seconds
Video, audio, images, documents, and archives — all in one place.
Powered by FFmpeg, Pillow, and LibreOffice. No installation.
Choose a service
Each service runs as an independent microservice
Free PDF and image tools
Merge, compress, split and more — right in your browser
Popular conversions
The most popular file conversions — ready in seconds
200+ supported formats
Click a format to go straight to the right converter
How it works
Choose file
Drag and drop or click to upload. Supports all popular file formats.
Convert
The server processes your file with FFmpeg, Pillow, or LibreOffice. No installation.
Download
Your file is ready in seconds. All files are deleted automatically after 1 hour.
Completely free
No subscription, no credit card, no limits. Convert as much as you want.
Private and secure
Your files are deleted automatically after 1 hour. We never read their content.
Lightning fast
Conversion happens on the server — your device stays free. Results ready in seconds.
Works everywhere
Mobile, tablet, Mac, and PC. No app to install — just open in your browser.
Microservices
Each conversion type is an independent service — reliable and scalable.
Open engine
Powered by FFmpeg, Pillow, and LibreOffice — industry standard, open source.
Service status
Free online file conversion — all in one place
Konvertio is a free, web-based file conversion service supporting over 200 file formats. All conversions happen in your browser — no installation, no registration. Powered by FFmpeg, Pillow og LibreOffice.
All services
- Video Converter — MP4, AVI, MOV, MKV, WebM, FLV, WMV, GIF og mer
- Audio Converter — MP3, WAV, FLAC, AAC, OGG, Opus, M4A, WMA og mer
- Image Converter — JPG, PNG, WebP, GIF, HEIC (iPhone), TIFF, ICO og mer
- Document Converter — PDF, Word, Excel, PowerPoint, ODT, CSV og mer
- Archive Converter — ZIP, TAR.GZ, TAR.BZ2, TAR.XZ, 7Z og mer
For developers — REST API
Integrate file conversion directly into your app with Konvertio API. Supports all formats, asynchronous processing, and simple authentication via API key. See pricing and get started →