Make photos smaller for forms, email and websites. Type the size you need, such as 20 KB, 50 KB or 100 KB, and the tool finds the best quality that fits. Your images are never uploaded.
Compress an image now →- Free
- No upload
- No sign-up
How to reduce image size in KB
Three steps, no account.
Add your images
Drop them in, click to choose, or paste with Ctrl+V. JPG, PNG, WebP and more are accepted.
Type the size you need
Enter a target such as 100 KB, or switch to Quality to set the quality yourself.
Download
Each result shows its new size. Download one image or all of them as a ZIP.
Compress to an exact size
Shortcuts with the size already filled in.
Why use this image compressor
Built for the moment a form says “file too large”.
Hits your exact limit
Type the limit in KB and the result is always at or under it, at the best quality that fits.
Private by design
Passport photos, signatures and documents stay on your device. Nothing is uploaded.
Free and unlimited
No daily cap, no sign-up and no watermark on your images.
Batch and ZIP
Compress up to 30 images with one click and download a single ZIP.
JPG or WebP
JPG for forms and email, WebP for faster websites.
Clear results
See the old size, new size, saving and dimensions for every image.
Common size limits
Typical limits you may be asked for. Always follow the number shown on the form you are filling in.
| Where | Typical limit | Setting to use |
|---|---|---|
| Signature for an online application form | 10 to 20 KB | Target size 20 KB |
| Photo for an online application or exam form | 20 to 50 KB | Target size 50 KB |
| Document scan for a job or visa portal | 100 to 200 KB | Target size 100 or 200 KB |
| Email attachment | Under 1 MB each | Target size 500 KB or 1 MB |
| Website or blog picture | 100 to 200 KB | WebP, max 1920 px wide |
Frequently asked questions
How do I compress an image to 100 KB?
Add your image, keep “Target size” selected, type 100 (or tap the 100 KB button) and press Compress images. The tool lowers the quality step by step, and shrinks the picture only if it has to, until the file is under 100 KB.
Is this image compressor free?
Yes. There is no limit on the number or size of images, no sign-up and no watermark. The page is supported by ads.
Are my photos uploaded?
No. Compression happens in your browser on your own device. Your photos are never sent to a server.
Will compression reduce quality?
A little. JPG and WebP save space by dropping fine detail you rarely notice. At 100 KB and above most photos still look clean on a screen. Very small targets such as 20 KB need a smaller picture, and the tool resizes it for you and shows the new size.
JPG or WebP: which should I choose?
Choose JPG for forms, email and anything that must open everywhere. Choose WebP for websites: it is usually about a quarter to a third smaller than JPG at similar quality.
Can I compress a PNG?
Yes. Add the PNG and it is saved as a much smaller JPG or WebP. JPG has no transparency, so transparent areas become white; pick WebP to keep transparency.
Can I compress many images at once?
Yes. Add up to 30 images, compress them together and download them all as one ZIP file.
Why is my file a little under the target?
The tool searches for the highest quality that still fits under your limit, so results are usually slightly below the number you typed and never above it.
Does it change the image dimensions?
Only when needed to reach a small target size, or when you choose a maximum width under Resize. The new width and height are shown next to each result.
More free image tools
All of them run in your browser, with no sign-up.