File Compressor to 100KB — Compress Files Under 100KB Free
Compress files to under 100KB in your browser. Set a 100KB target and shrink images and PDFs until they fit — free, private, no upload, no sign-up.
Drop your file here, or click to browse
Files are processed in your browser — nothing is uploaded.
What is a file compressor to 100KB?
What is it
A file compressor to 100KB shrinks your file until it fits under a 100-kilobyte target. filecompressor.app lowers image quality and re-encodes PDFs in your browser until the output is under 100KB.
This is perfect for very small web images, avatars, and strict form-upload limits. Everything runs locally, so your files stay private and free of sign-ups.
How to compress a file to 100KB
How to use
Reaching a 100KB target is automatic:
- 1
Drop your image or PDF into the dropzone above, or click to browse.
- 2
The compressor targets 100KB, lowering quality until the output fits, then shows the final size.
- 3
Click Download to save the file, now under 100KB and ready to upload.
Why use this 100KB compressor?
Why use it
Hits an exact 100KB target for the strictest upload caps.
100% private — files are processed in your browser and never uploaded.
Free with no sign-up, no watermarks, and no limits.
Ideal for avatars, icons, and tiny web images.
Works on desktop and mobile with no app install.
FAQ
Common questions about this compression tool.
Frequently Asked Questions
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