If you've never compressed a file before, this guide will walk you through everything from start to finish. File compression reduces the size of your files so they're easier to share, send via email, or upload to a website — without losing important content.
What Is File Compression?
Compression removes redundant or unnecessary data from a file to make it smaller. For images, this means reducing pixel-level detail that the eye can't perceive. For PDFs, it means recompressing embedded images and stripping metadata. For videos, it means lowering the bitrate.
How to Compress Your Files with CompressAndGo — 3 Steps
- Go to compressandgo.app — no download or account required
- Set your target size — use the slider for quick presets (100KB, 200KB, 500KB, 1MB, 5MB, 20MB) or type any value directly in the KB input
- Drop your files in — CompressAndGo automatically detects whether each file is an image, PDF, or video and applies the right compression method
That's it. Up to 10 files can be compressed at once. All files are processed locally — nothing is uploaded to any server.
What Target Size Should I Use?
- Email attachments: 200–500KB for images; 1–5MB for PDFs - WhatsApp photos: 500KB–2MB - WhatsApp videos: 5–15MB - Portal uploads: check the site's limit and set your target just below it - Social media: 500KB–1MB for images
What File Types Can I Compress?
Images: JPEG, PNG, WebP, GIF, AVIF. PDFs: any PDF document. Videos: MP4, MOV, AVI, MKV, WebM, 3GP, FLV, MPEG. All output from video compression is delivered as MP4.
Is It Free?
Yes — fully free for files up to 150MB. No sign-up, no limits on how many times you use it, no subscription.
