Frequently asked questions
Everything you need to know about how Squeezio compresses your images and videos.
Is Squeezio really free to use?
Yes. There's no account requirement, no daily compression limit, and no watermark added to your output files. Squeezio is free for both personal and commercial use.
Do you upload my files to a server?
No. Both the image compressor and the video compressor run entirely inside your browser — the image tool uses the browser's built-in Canvas API, and the video tool runs a WebAssembly build of FFmpeg. Your files are processed locally and are never transmitted anywhere.
Can I compress multiple files at once?
Yes. Switch to "Bulk Compression" on either tool, select or drag in as many files as you like, compress them all in one pass, and download every result together as a single ZIP file.
Which file formats are supported?
The image compressor accepts JPG, PNG and WEBP files and can convert between them. The video compressor accepts MP4, MOV and WEBM files and outputs an optimized MP4.
Will compression reduce image or video quality?
Compression always trades some quality for a smaller file size. Squeezio gives you direct control over that trade-off with a quality slider and resolution options, so you can find the setting that looks right for your use case.
Is there a file size limit?
Because processing happens on your own device rather than a remote server, there's no artificial file-size cap from us. The practical limit depends on your device's memory and processing power — very large 4K videos may take longer to encode.
Why does the video compressor take a moment to start?
The first time you compress a video, your browser downloads the compression engine (a WebAssembly build of FFmpeg). This only happens once per session — after that, compressing additional videos is much faster.