Free Online File Compressor
Compress files online and reduce file size without changing the format. Choose an image, video, audio or PDF compressor and make large files smaller for sharing, uploading and storage.
WHICH KIND OF FILE?
Images
Quality slider with a live side-by-side preview.
JPGPNGWEBPGIFHEIC
18 toolsBrowse →
Video
Target size or quality, with a preview frame first.
MP4MOVGIF
5 toolsBrowse →
Audio
Bitrate control with before-and-after sizes.
MP3WAVFLACM4A
3 toolsBrowse →
PDFs
Smaller PDFs that still print properly.
PDFDOCXXLSXPPTXJPG
Browse →
Most used compress tools
Compress mov34k runsCompress mp419k runsCompress pdf13k runsCompress gif6.3k runsCompress jpg6.3k runsCompress png4.7k runsCompress webm4.7k runsCompress 3gp3.1k runsHow we decide what to throw away
Compression is only useful if the part you notice survives.
You set a target size or a quality level, never a raw codec flag.
Images and video show a before-and-after preview at full zoom.
PDF text stays vector, so a compressed file still prints sharp.
Same job, a hundred times a day?
Every tool under compress runs over a REST endpoint and an MCP server, so a script can do it instead of you.