Image Compressor
Image Compressor — free, fast and private. Runs entirely in your browser, no upload and no sign-up required.
Drop your files here
Drag & drop files here, or browse files
jpg · jpeg · png · webp · bmp · gifMaximum file size: 50 MB
Processed in your browser — never uploaded.
Technical Specifications
Input FormatJPG, PNG, WebP
Output FormatOptimized image
Processing EngineBrowser Canvas & Binary Search
Privacy Protection100% In-Browser · Never uploaded
Reduce image file sizes with an adjustable quality slider, or aim for a specific target size like 100 KB — the compressor binary-searches the quality setting and, if needed, scales the image down until the target is met.
- Meet a form's 'maximum 200 KB' photo requirement
- Speed up a website by shrinking its images
- Send photo batches through size-limited chats
The size reduction shown after compression is measured on your actual file — not an estimate.
How it works
- 1
Choose or drop your file
- 2
Adjust options if needed and start processing
- 3
Download the result — everything stays on your device
Frequently asked questions
- How does target size compression work?
- You can choose a target size like '≤ 100 KB'. The tool automatically runs a binary search algorithm on compression levels and dimensions until the exact byte size requirement is achieved.
- Are my photos sent to a compression server?
- Never. Compression runs entirely on your device's CPU/GPU via your browser. Personal photos and sensitive ID documents stay 100% secure on your machine.
Processed in your browser — never uploaded.