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All Free Compressors
Reduce file size of images, PDFs, videos, and audio — instantly and free. Up to 90% smaller without visible quality loss.
61 free tools
✓ No registration
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Why Use ConversionFree Compressors
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Smart Compression
Our binary-search algorithm finds the perfect quality — the highest that still fits your target size.
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Target Sizes
Compress to an exact size — 20KB, 50KB, 100KB, 500KB, 1MB — perfect for exam portals and online forms.
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Private by Default
JPG and PNG compression happens in your browser — your files never leave your device.
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All Formats Supported
JPG, PNG, WebP, GIF, HEIC, AVIF, JXL, JFIF, PDF — every major format.
Browse by Category
Pick a category to see all related compressors.
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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