All Free Compressors
Reduce file size of images, PDFs, videos, and audio — instantly and free. Up to 90% smaller without visible quality loss.
Why Use ConversionFree Compressors
Smart Compression
Our binary-search algorithm finds the perfect quality — the highest that still fits your target size.
Target Sizes
Compress to an exact size — 20KB, 50KB, 100KB, 500KB, 1MB — perfect for exam portals and online forms.
Private by Default
JPG and PNG compression happens in your browser — your files never leave your device.
All Formats Supported
JPG, PNG, WebP, GIF, HEIC, AVIF, JXL, JFIF, PDF — every major format.
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Pick a category to see all related compressors.
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Frequently Asked Questions
What is file compression?
Compression reduces file size by re-encoding data more efficiently. Images lose hidden visual detail, PDFs downsample images. Text stays readable and files open normally — they're just smaller.
Does compression reduce quality?
Slightly, but our binary-search algorithm finds the highest quality that still fits your target — so files look sharp at normal viewing size.
Can I compress to a specific size like 50KB?
Yes. Every format has target-size pages — HEIC to 50KB, JPG to 100KB, PDF to 200KB — perfect for exam portals and online upload limits.
Which formats are supported?
JPG, PNG, WebP, GIF, HEIC, AVIF, JXL, JFIF, TIFF, and PDF. Video and audio compressors are coming soon.
Is my data private?
Yes. Small JPG and PNG compression happens entirely in your browser. Larger files are uploaded over HTTPS and auto-deleted after processing.
Is it free?
Yes — completely free, no signup, no watermark, no daily limits.
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