Image Compressor
Private. No upload.
Drop an image here, or click to browse
PNG, JPEG, and WebP supported.
Drop an image here or click to browse. All processing stays in your browser.
Make your images smaller without uploading them anywhere. Choose a photo, set the quality, and optionally convert it to JPEG or WebP, then see exactly how much smaller the file gets before you download it. Everything runs in your browser using the canvas, so your images never leave your device. Great for trimming page weight, email attachments, and upload limits.
How to use
- Choose an image, or drag and drop it onto the box.
- Drag the quality slider to balance file size against clarity.
- Optionally convert to JPEG or WebP for smaller files.
- Compare the before and after size and preview.
- Click Download to save the compressed image.
Examples
- A large JPEG photo at quality 70 often drops by half or more with little visible change.
- Converting a PNG screenshot to WebP can cut the size sharply while keeping it crisp.
- Lowering quality to 50 makes tiny files for thumbnails and previews.
FAQs
- Does compressing change the image dimensions?
- No. The compressor keeps the original width and height. It reduces file size by lowering the JPEG or WebP quality, which removes detail the eye barely notices. To change the pixel dimensions, use the image resizer instead.
- Which format gives the smallest file?
- WebP usually produces the smallest file at the same visual quality, often noticeably smaller than JPEG. JPEG is the safest choice for the widest compatibility. PNG is lossless, so it stays larger and the quality slider does not apply to it.
- Why did my PNG not get much smaller?
- PNG is lossless, so quality based compression does not apply. To shrink a PNG a lot, convert it to JPEG (for photos) or WebP (for most images) using the format option. Flat graphics and screenshots compress best as WebP.
- Will compressing reduce quality?
- Lossy formats like JPEG and WebP trade some detail for size, so very low quality settings can show blur or blocky artifacts. The live preview and the before and after sizes let you pick a setting where the image still looks good.
- Are my images uploaded?
- No. Compression happens locally in your browser with the canvas. Your images are never uploaded or stored, so it is safe for private photos.
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