Image Compressor & Resizer
Shrink an image's file size, resize its dimensions, or convert it to JPG, PNG, or WebP — free, unlimited, with nothing uploaded to any server.
Click to choose an image or drag and drop it here
Processed entirely on your device — nothing is uploaded.
Why compress images in your browser instead of a paid tool?
Services like TinyPNG limit free compression through an API call quota, and Remove.bg-style tools charge per image at higher resolutions. Since image compression is just a math operation your own device's browser can already do, there's no real reason to route it through a paid server — this tool does the same job locally, for free, with no limit.
Choosing quality vs. file size
| Quality setting | Typical result |
|---|---|
| 90-100% | Minimal size reduction, best for archival quality |
| 70-85% | 50-80% smaller, no visible quality loss for most photos |
| Below 50% | Significant size reduction, visible artifacts likely |
JPG vs. PNG vs. WebP
- JPG — best for photos; doesn't support transparency.
- PNG — best for logos, screenshots, and anything needing transparency; larger file size for photos.
- WebP — modern format with better compression than JPG at similar quality, supports transparency too.
Frequently asked questions
Is my image uploaded anywhere? No — compression and resizing happen locally using your browser's built-in image processing. The file never leaves your device.
Is there a limit on how many images I can compress? No daily limit — compress as many images as you need, one at a time.
Which format should I choose — JPG, PNG, or WebP? Use JPG for photos where small file size matters most. Use PNG when you need transparency or sharp edges (logos, screenshots). Use WebP for the best compression with quality similar to JPG, if your use case supports it.
Will compressing reduce visible quality? At moderate quality settings (70-85%), most photos show no visible difference while file size can drop 50-80%. Very low quality settings introduce visible artifacts.
How to compress and resize an image
- Choose an image or drag it onto the upload area.
- Set the quality percentage, and optionally a maximum width or height.
- Choose the output format: JPG, WebP or PNG.
- Compare the original with the compressed version, then download the result.
Quality settings that balance size and sharpness
| Quality | Result |
|---|---|
| 90–100% | Almost no visible loss, but only a modest size saving. |
| 70–85% | A good balance for photos on websites and in email. |
| 50–65% | Much smaller files, with some visible softness on close inspection. |
| Below 50% | Noticeable artefacts; use only for tiny thumbnails. |
Resizing often saves more than quality
A photo straight from a modern phone can be 4,000 pixels wide, far larger than any screen needs. Limiting the width to 1,200–1,600 pixels for a web page, or about 800 for an email, can cut file size dramatically with no visible difference at the size it is displayed. Reducing dimensions first, then adjusting quality, gives the best results.
Which format for which image
- JPG: photographs and images with many colours.
- WebP: modern format that is usually smaller than JPG at similar quality and is supported by current browsers.
- PNG: logos, screenshots and graphics that need sharp edges or transparency.
Smaller images also help pages load faster, which supports a better experience and better search performance. To put several images into one document, use JPG to PDF after compressing.
More questions
Can I compress the same image repeatedly? Each JPG or WebP save loses a little detail, so keep your original and compress from it once instead of re-compressing the result.
Does it keep transparency? PNG keeps transparent areas. JPG does not support transparency, so choose PNG or WebP if you need it.
What size should images be for a website? Match the largest size the image will display, with a small allowance for high-density screens, and avoid uploading originals that are much larger.