Free Online Image Compressor

Compress image online free — shrink JPG, PNG, WebP, GIF & BMP file sizes by up to 90% with no visible quality loss. 100% in your browser, no uploads, no sign-up.

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How Image Compressor Works

1

Upload your image into the Image Compressor tool above — no sign-up or installation required.

2

Compress images online for free and reduce JPG, PNG, WebP, GIF, and BMP file sizes by up to 90% without any visible loss in quality. Fine-tune the result with a 1–100 quality slider, a target file size (for example "under 500KB" for a form upload), maximum width/height resizing, and one-click Web, Print, Maximum, and Lossless presets. Optionally convert to WebP for extra savings or keep EXIF data intact. Batch-compress dozens of images at once, compare before/after side by side, and download individually or as a single ZIP. Every image is processed entirely in your browser using Web Workers — nothing is ever uploaded to a server.

3

Get your result instantly and download it — your image is processed entirely in your browser and never uploaded to a server.

Why Use Our Image Compressor

100% Free

Image Compressor is completely free to use, with no sign-up and no limit on how many times you can use it.

Private by Design

Your image is processed entirely in your browser and never uploaded to a server.

Built for Real Use Cases

Commonly used for shrinking photos below a form's upload size limit and speeding up a website by compressing hero and product images.

Frequently Asked Questions

How do I compress an image without losing quality?
Upload your image and keep the quality slider at 80–90% — modern JPEG and WebP encoders remove data your eyes can't perceive at that range, so the file shrinks dramatically with no visible difference. For pixel-perfect results on graphics and screenshots, use the Lossless preset, which keeps PNG output fully lossless. You can verify the result with the built-in side-by-side before/after comparison.
What image formats are supported?
The Image Compressor accepts JPG/JPEG, PNG, WebP, GIF, and BMP files. Output is delivered in the same format you uploaded, or you can enable the Convert to WebP option to re-encode any input as WebP, which is typically 25–35% smaller at the same visual quality.
Is there a file size limit?
No — there is no hard file size limit, no daily quota, and no cap on how many images you can compress in one batch. Because everything runs locally in your browser, the only practical limit is your device's available memory, which comfortably handles even large multi-megabyte photos.
Are my images uploaded to a server?
No. All compression happens 100% inside your browser using Web Workers — your images never leave your device, are never uploaded, stored, or seen by anyone. This makes the tool safe for private photos, identity documents, and confidential work files.