Compress Image for Upload
Forms and portals often reject files over 500 KB or 1 MB. Compress to fit without re-shooting.
Files never leave your device
Drag & drop images here
or click to browse · paste with ⌘V
Tip: copy an image and paste anywhere on the page
Scale by percent
Scaling down image dimensions usually creates the biggest file size reduction.
Compression preset
Quick start — tweak below if you like
Lower quality creates a smaller file but may slightly reduce image clarity.
Auto-tunes quality. JPG/WEBP/AVIF only.
Add images to begin
Why use this compressor?
- Runs 100% in your browser — files never leave your device
- Free and unlimited — no account, no watermarks
- Bulk compress dozens of images in parallel
How it works
- 1Drop your images into the box above
- 2We'll target around 500 KB — adjust if you like
- 3Click Compress and download the smaller files
Related compression tools
Frequently asked questions
Are my images uploaded anywhere?
No. All compression happens locally in your browser using the Canvas API. Your files never leave your device.
Is the compressor free?
Yes — fully free, unlimited, no account, no watermarks.
Will my image lose quality?
JPG, WEBP and AVIF use lossy compression, so some quality is traded for smaller files. Use the quality slider to find the sweet spot. PNG is lossless — most savings come from re-encoding and stripping metadata.
How small can I make my images?
Pick a target file size (in KB) and we'll auto-tune quality to get as close as possible while preserving the best look.
Does it work on mobile?
Yes. The compressor is fully responsive and runs on any modern phone, tablet or desktop browser.
How fast is it?
Most images compress in well under a second. Large batches run several in parallel using your device's CPU.