Smaller files, same quality.
Drop in one or several images, pick a format and quality, and download — nothing leaves your browser.
About this tool
Large, uncompressed images are one of the most common reasons websites load slowly. This tool re-encodes images directly in your browser — no upload to a server required — so you can shrink file sizes or switch formats without waiting on someone else's servers or worrying about where your files end up.
It supports batch processing, so if you have a folder of product photos or blog images to prepare, you can compress all of them in one pass instead of one at a time.
How to use it
- Drag and drop one or more images, or click to browse and select files.
- Choose your output format — JPG, PNG, or WebP — and set a quality level with the slider.
- Click "Compress all" to process every uploaded image at once.
- Download each result individually, comparing the before/after file size shown next to each one.
Why use this one
Compress and convert multiple images in a single pass instead of one at a time.
Convert freely between JPG, PNG, and WebP depending on what your project needs.
See the exact percentage saved for every image before downloading.
Images never leave your device — compression happens using your browser's own Canvas engine.
Frequently asked questions
Are my images uploaded to a server?
No. All compression and format conversion happens locally in your browser using the Canvas API — your images never leave your device.
Which format should I choose — JPG, PNG, or WebP?
Use JPG for photos where small file size matters more than transparency. Use PNG when you need transparency or sharp edges (logos, icons). Use WebP for the best balance of quality and file size on modern websites.
Will compressing reduce image quality?
At 80–90% quality, most images look visually identical to the original while being significantly smaller. Lower the quality slider further only if file size is more important than visual fidelity.
Why is my PNG still large after compression?
PNG is a lossless format, so it can't shrink as dramatically as JPG or WebP without changing the image data itself. If the image doesn't need transparency, converting it to JPG or WebP will usually produce a much smaller file at a similar visual quality.
Is there a file size or batch limit?
There's no hard limit built into the tool, but very large batches or extremely high-resolution images will take longer to process since everything runs on your device's own processing power rather than a server.