Image Compressor
Image Compressor is a free online tool that lets you bulk-compress up to 200 images with adjustable quality. It runs entirely in your browser — no sign-up, no watermark, and your files are never uploaded.
Free · unlimited · processed privately in your browser
or drag and drop files here
Supported: PNG, JPG, JPEG, WEBP, BMP, GIF · up to 200 files
Your files stay private — 100% in your browser
We never upload your files, photos, or videos to any server. Everything is processed directly in your browser, so your data never leaves your device. That means zero privacy worries — no one else can ever see or store what you convert.
- No uploads
- Processed on your device
- No sign-up needed
About Image Compressor
Reduce image file sizes with this free online image compressor. Compress JPG and PNG images with an adjustable quality slider, and use the bulk image compressor to shrink up to 200 images at once. Whether you need an image compressor to 100kb, to 50kb, or to 20kb, lower the quality to hit your target — all in your browser, with no watermark or sign-up. Everything runs directly in your browser, so your files are never uploaded to a server and stay completely private.
After you upload
Choose how you want to control the result — by quality, or by a target file size.
Options explained
- By quality / To a target size
- Two ways to compress. 'By quality' lets you trade detail for size with a slider. 'To a target size' lets you name an exact size (like 100 KB) and we hit it for you.
- Quality (%)
- Higher keeps more detail but a larger file; lower shrinks it more but can soften detail and add visible artifacts. 70% is a good balance.
- Target size per image (KB)
- Set the size each image should come out at — drag the slider in 50 KB steps or type an exact number. With several images, every one is compressed to about that size (not the total).
How to use Image Compressor
- 1Click Choose Files and select up to 200 images.
- 2Set the quality level (lower means a smaller file).
- 3Press Run to compress every image in your browser.
- 4Download each image, or grab them all as a ZIP.
Frequently asked questions
What is an image compressor?
An image compressor reduces the file size of a photo or graphic by re-encoding it, so it loads faster and takes less storage while keeping good quality.
What is the best free image compressor?
The best free image compressor shrinks files significantly without a watermark and keeps images private. Ours compresses up to 200 images at once, in your browser.
What is the best image compressor for free?
A free image compressor with bulk support, no upload, and no limits — like this one — is ideal for compressing many images quickly.
Can I compress images in bulk?
Yes. This bulk image compressor accepts up to 200 images at once and lets you download them together as a ZIP.
Can I compress an image to a specific size like 100kb?
Lower the quality slider to reduce the file size. To reach a target like 100kb, 50kb or 20kb, try a lower quality and re-run if needed.
Are my images uploaded?
No. The image compressor works in your browser, so images stay completely private.
How to compress an image to 2mb?
Use Image Compressor above: upload your file, run it, and download the result. It is free with no limits or sign-up, and your images are processed locally in the browser and never sent to a server, so they remain entirely private to you.
How to compress an image to 500kb?
Use Image Compressor above: upload your file, run it, and download the result. It is free with no limits or sign-up, and your images are processed locally in the browser and never sent to a server, so they remain entirely private to you.
How to compress an image to 100kb?
Use Image Compressor above: upload your file, run it, and download the result. It is free with no limits or sign-up, and your images are processed locally in the browser and never sent to a server, so they remain entirely private to you.
How to compress an image without losing quality?
Use Image Compressor above: upload your file, run it, and download the result. It is free with no limits or sign-up, and your images are processed locally in the browser and never sent to a server, so they remain entirely private to you.