File Compression Tools - Compress Files Online Free | MiConvert

File Compression Tools

Reduce file size while maintaining quality — fast, free, and secure

Compress images, PDFs, and videos to smaller sizes — free, fast, and right in your browser.

Drop your files here

or click to browse

Supports 1000+ formats • Max file size: 100MB

Available Tools

About File Compression Tools

Drop a file above and let us shrink it while keeping quality high. Reduce bulky JPG and PNG images for faster websites, compress PDFs to email-friendly sizes, or cut down large MP4 videos for easier sharing. Compression runs without any software install and never requires an account. Whether you're speeding up a page, beating an upload limit, or saving storage, every tool below is free, secure, and works on any device. Files are processed privately and removed automatically after compression.

These tools target the size problems people hit every day: a phone photo too large to attach to an email, a PDF scan that exceeds an application's upload limit, or a screen recording that takes too long to upload. Compression works by optimizing image quality settings, re-encoding video with efficient codecs, and stripping unnecessary PDF data — all tuned to keep the result looking close to the original.

Frequently Asked Questions

How do I compress a file?

Drop your file into the upload box above (or click to browse) and choose the matching compress tool. The smaller file downloads automatically.

Is compression free?

Yes. All compression tools are free with no sign-up required. Pro adds larger files and batch processing.

Will compressing reduce quality?

We balance size and quality so the difference is barely noticeable. Many formats support near-lossless compression.

What files can I compress?

Images (JPG, PNG, GIF, WebP, TIFF), PDFs, and videos (MP4, WebM, AVI, MOV, MKV, WMV, FLV).

Are my files safe?

Yes. Files are sent securely, processed privately, and deleted automatically after compression.

How much smaller will my file get?

It depends on the file and format, but images and PDFs commonly shrink by 50-80% with little visible difference, and videos can often be cut by half or more depending on the source quality.

Should I compress or convert my file?

Compress if you want to keep the same format but reduce file size. Convert if you need a different format entirely — for example switching a PNG to WEBP does both at once.