Smaller images, same look
A single phone photo is often 3–8 MB. That's too heavy for an email attachment, slows down web pages and gets rejected by upload forms. This compressor re-encodes your images with modern settings so they take a fraction of the space while still looking the same on screen.
Need to hit a hard limit? Switch to Reach a file size and pick 20 KB, 50 KB, 100 KB or type your own number. The tool finds the highest quality that fits, and only scales the picture down if quality alone isn't enough — exactly what exam, job and government application portals ask for.
Compression runs on your own device. Photos are never uploaded, so ID photos, documents and family pictures stay private.
How to compress an image
- 1
Add your images
Drop one or many JPG, PNG or WebP files, or paste a screenshot with Ctrl + V.
- 2
Pick a method
Choose quality for general use (75% is a good start), or Reach a file size and select the KB limit you need.
- 3
Optional: limit the dimensions
Capping the longest side at 1920 or 1280 px shrinks big phone photos dramatically.
- 4
Download
Save each image, or all of them at once as a ZIP. You'll see the before and after size for every file.
Key features
Exact KB targets
Get a photo under 20, 50, 100, 200 or 500 KB — or any custom size — with the best quality that fits.
Batch compression
Compress dozens of images in one go and download them together as a ZIP.
Smart format choice
Auto mode keeps photos as JPG and turns transparent PNGs into WebP so the transparency survives.
Never bigger than before
If a file is already well optimised, we give you the original back instead of a larger copy.
Private by design
Everything happens in your browser; nothing is sent to a server.
Common uses
- Online application forms: Meet strict photo and signature size limits without guessing quality settings.
- Faster websites: Lighter images load quicker and help Core Web Vitals scores.
- Sharing and email: Send a whole album without hitting attachment limits.
- Saving storage: Shrink a folder of holiday photos before backing it up.
Common size limits
| Where it's used | Typical limit | Setting to try |
|---|---|---|
| Exam and job application photos | 20–50 KB | Reach a file size → 50 KB (or 20 KB) |
| Signature scans on forms | 10–20 KB | Reach a file size → 20 KB, or a custom 10 KB |
| Email attachments | Under 1–2 MB per photo | Quality 75%, max 1920 px |
| Website images | Under 200 KB | WebP, quality 75%, max 1920 px |
Portals also check pixel dimensions — if yours asks for something like 3.5 × 4.5 cm or 200 × 230 px, resize first with the Image Resizer, then compress.
Tips and good to know
- PNG is lossless, so it only shrinks when you also reduce the dimensions. For small files that keep transparency, choose WebP.
- Very small targets such as 10–20 KB work best with portrait photos of a face; a detailed landscape may need to be scaled down more to fit.
- Compressing the same JPG again and again slowly degrades it. Always start from the original photo when you can.
- Want a different format as well? The Image Converter switches between JPG, PNG and WebP.