File Compression Tools

Free Online File Compressor

Reduce the size of your files without sacrificing quality. coverters.com offers dedicated compression for images, PDFs, videos and audio — with an adjustable quality slider for each format.

Supported Compression Formats

• Compress JPG — Reduce JPEG file size with adjustable quality (1–95)
• Compress PNG — Lossless PNG optimization using quantization
• Compress PDF — Reduce PDF size using Ghostscript optimization
• Compress MP4 — Reduce video size by adjusting CRF and resolution
• Compress MP3 — Reduce audio bitrate to shrink file size
• Compress GIF — Reduce animated GIF file size

How Much Can You Save?

Typically, compressing a JPG at 75% quality reduces file size by 50–70% with no perceptible visual difference. PDF compression with Ghostscript can reduce size by 30–80% depending on the content. MP4 compression with CRF 28 reduces size by approximately 40–60% vs the original.