Compress Images Without Losing Quality
Upload one or several images, choose the compression level, and download them at a much smaller size.
Drag images here or click to select
JPG · PNG · WEBP — select multiple images at onceToopec's image compression tool uses your browser's built-in Canvas technology to re-encode the image at an adjustable quality, significantly reducing file size without noticeable loss in visual quality. Suitable for compressing website images, photo galleries, or any images you want to shrink before sharing or uploading.
How to Compress Images
- Drag your images into the box above or click to choose them (you can select several at once).
- Adjust the quality level with the slider based on your needs.
- Choose the right output format: JPEG for photos, WEBP for the best compression, or PNG to keep full quality.
- Click "Compress All Images", then download each one separately or all together as a ZIP file.
Frequently Asked Questions
Does the image lose quality after compression?
The result depends on the quality level you choose; between 70% and 85% you usually get a large size reduction with almost no visible difference to the naked eye. The lower the percentage, the smaller the file but the less sharp the fine details become.
What's the difference between JPEG, WEBP, and PNG when compressing?
JPEG gives the best compression ratio for photographic images, WEBP keeps a higher quality at roughly the same size but has slightly less support in some older software, while PNG keeps full lossless quality but results in a larger file — best for images with text or transparency.
Does the site upload my photos to an external server?
No, all processing happens entirely inside your browser using JavaScript — your photos never leave your device.
How much can the image size shrink?
It depends on the original image and the quality level chosen; high-resolution photos can shrink 70-90% when converted to JPEG or WEBP at 75-85% quality, while simple images with few colors benefit more from PNG.
Can I compress several images at once?
Yes, you can upload multiple images at the same time, apply the same quality and format settings to all of them, and download each separately or as a single ZIP file.
Do the image dimensions change after compressing?
Dimensions don't change by default; compression only reduces file size through re-encoding. You can enable the "also resize dimensions" option if you want to shrink the size further.
Which format is best for use on websites?
WEBP is currently the best option for most modern browsers because it gives the smallest size with good quality; JPEG is a safe choice compatible with both old and new browsers.