The free online file compressor for every format
MultiCompressor is a powerful, all-in-one online compression platform that helps you reduce the size of your video, image, audio, PDF, GIF and document files in seconds — without installing any software or creating an account. Our smart engine delivers the perfect balance between small file size and outstanding visual and audio quality.
Large files are a constant headache: they slow down websites, eat into cloud storage, exceed email attachment limits, and take forever to upload on slow connections. Compressing your files solves all of these problems at once.
Six specialised compression engines in one place
Each file type requires a different approach. MultiCompressor runs a dedicated engine for every format so you always get the best possible result:
| Format | Engine | Typical size reduction |
|---|---|---|
| Images (JPG, PNG, WEBP) | ImageMagick perceptual | 40 – 80 % |
| Videos (MP4, MOV, AVI) | FFmpeg H.264 / H.265 | 50 – 90 % |
| Audio (MP3, AAC, OGG) | FFmpeg AAC re-encode | 30 – 70 % |
| PDFs | Ghostscript re-compress | 40 – 85 % |
| GIFs | Gifsicle palette optimise | 30 – 60 % |
| Office docs (DOCX, PPTX…) | ZIP deflate + image strip | 20 – 50 % |
How compression works — step by step
- Upload — drag your file onto the tool page or click to browse. Files up to 1 GB are accepted on the free plan, and up to 5 GB on Premium.
- Detect — MultiCompressor reads the real MIME type, not just the extension, and routes it to the correct engine automatically.
- Compress — the engine applies the best algorithm for the format, balancing quality against file size.
- Download — a signed download link is ready in seconds. Your file is automatically deleted from our servers after two hours.
Why MultiCompressor is the right choice
- No software to install — everything runs in your browser on Windows, macOS, Linux, Android and iOS.
- No account required — free compressions work instantly without signing up.
- Real compression — our engines are the same battle-tested tools professionals use:
ffmpeg,magick,gs,gifsicle. - Privacy first — files are uploaded over HTTPS, processed in isolation, and permanently purged after two hours.
- All formats in one place — no need to juggle six different websites for six different file types.
MultiCompressor reduced my product photos from 12 MB to under 800 KB without any visible quality loss. My Shopify store now loads twice as fast.
Free plan vs Premium
MultiCompressor is free for everyday use. When you need more power, Premium unlocks higher limits and priority processing:
| Feature | Free | Premium |
|---|---|---|
| Max file size | 1 GB | 5 GB |
| Daily compressions | 20 | Unlimited |
| Ad-free experience | No | Yes |
| Priority queue | No | Yes |
| Batch compress | No | Yes |
Start compressing now
Pick any tool above, drag in your file, and see how much space you can save — no account, no waiting, no watermarks.