Image Compressor
Reduce image file size
Browser-only processing
Files are processed in your browser — nothing is uploaded.
Mode:
Drop images (JPG/PNG/WebP) — multiple allowed
Up to 50 MB per file
Related tools
More browser-based tools for this workflow.
What this tool does
Compress JPG, PNG, and WebP images with adjustable quality, target size in KB, and an optional max-dimension cap. Runs in your browser via a Web Worker.
Image Compressor is a free image utility that gets the job done without installing software or creating an account. The whole process runs inside this browser tab, so your input never leaves your device. Common searches that land here include image tool, image utility.
Key features
- Batch-compress dozens of JPG, PNG, or WebP images at once
- Adjustable quality slider plus optional target-size cap in KB
- Per-file table showing original size, compressed size, and % saved
- Download every result individually or as a single ZIP
- Powered by browser-image-compression — runs in a web worker for snappy UI
Common use cases
- Shrinking phone photos before uploading to a website or CMS
- Hitting strict image-size limits on marketplaces and government forms
- Trimming Lighthouse / Core Web Vitals issues on a site
Things to know
- PNG screenshots with few colors may not compress dramatically — try converting to WebP
- Very large images (>50 MP) may take noticeable time on mobile devices
- Lossless modes are not exposed; this tool optimizes for visual quality vs file size
Privacy & local processing
Image Compressor processes everything inside your browser — your files and text are never uploaded to a server, never logged, and never shared with third parties.How to use Image Compressor
- 01
Drop one or more JPG, PNG, or WebP files (up to 50 MB each).
- 02
Pick mode — quality only, target KB, or both — and optionally cap the longest side.
- 03
Press Compress, then download each file or grab everything as a ZIP.
Frequently asked questions
Is my data uploaded anywhere?
No. Every tool on WebToolsLabs runs entirely inside your browser. Your data never leaves your device.
Is this tool free?
Yes. All tools on WebToolsLabs are 100% free with no signup, no watermarks, and no usage limits.
Does it work on mobile?
Yes. WebToolsLabs is fully responsive and works on phones, tablets, and desktops.