About Image Compressor
Large images slow down websites, bounce off email size limits and get rejected by upload forms. This compressor shrinks JPG, PNG and WebP files and keeps each one in its own format. JPG and WebP images are re-encoded at the quality you choose, or you can enter a target size and let the tool find the highest quality that fits. PNG images are reduced to fewer colours, which often cuts their size dramatically while looking almost the same. You can also cap the dimensions, which is usually the biggest saving of all for phone photos.
How to Use It
- 01
Add images
Drop JPG, PNG or WebP files into the box, or tap it to pick them. Mixed batches are fine.
- 02
Choose how much to shrink
Lower the quality, enter a target size in KB, reduce PNG colours, or set a maximum width.
- 03
Compress and download
Press Compress. Each file shows its old and new size; download one by one or as a ZIP.
Why compress images?
Photos from modern phones are typically 3–8 MB each, and screenshots on high-resolution screens can be several megabytes too. That's far more than most uses need. Job portals, visa applications, school assignments and government forms often cap uploads at 100 KB, 500 KB or 2 MB, email providers limit attachments, and big images make web pages slow to load and eat into phone storage and data plans.
Compressing an image keeps it looking good while removing data you won't notice: fine detail the eye can't see at normal size, extra pixels beyond what the screen shows, and hidden metadata such as camera details and GPS location.
Three ways to make an image smaller
Lower the quality. For JPG and WebP, a quality of 70–80% usually cuts the size by half or more with no visible change in photos. Set a target size instead. Type a number such as 200 in Target size (KB) and the compressor tries quality levels until it finds the best one that fits under that size. This is the easiest way to meet a strict upload limit.
Reduce the dimensions. A 4000-pixel-wide photo shown in a 1000-pixel space is wasting three quarters of its data. Setting a maximum width such as 1600 or 1200 pixels is often the single biggest saving, and combining it with a target size reliably gets photos under 100 KB.
Compressing PNG images
PNG is lossless, so the quality slider doesn't apply. Instead, the compressor reduces the number of colours: 256 colours keeps nearly all the detail in screenshots, logos and illustrations while often halving the file, and fewer colours shrink it further for simple graphics. Choose Lossless only when every pixel must stay identical; the saving is smaller but nothing changes.
For photos saved as PNG, the biggest win is converting them to JPG with PNG to JPG, which can make them five to ten times smaller.
Common size targets
Passport and visa photo uploads often require 20–200 KB; use a target size and a maximum width of around 600–800 pixels. Job applications and university portals usually accept up to 1–2 MB per file. For website images, 100–300 KB per photo at 1600 pixels wide keeps pages fast. For email, a handful of photos at 500 KB each sends quickly and still looks sharp on a phone.
Every file shows its size before and after, and if an image can't be made any smaller, the tool tells you instead of silently returning a bigger file. For more control over a single format, try the JPG compressor or PNG compressor.
Questions
Will my images look worse?
Compression removes detail you're unlikely to notice at normal viewing sizes. At 70-80% quality most photos look the same on screen. Check the result, and raise the quality if you see blockiness or banding.
How does the target size work?
For JPG and WebP, the tool tries several quality levels and keeps the highest one that fits under your target. If even the lowest quality is too big, it tells you, and setting a smaller maximum width is the next step.
Why didn't my file get smaller?
Some images are already heavily compressed. If the result isn't smaller than the original, the file row says so and you can simply keep your original.
Are my images uploaded?
No. Decoding, compression and the ZIP file are all created in your browser. The page's security policy stops it from sending data to other websites.
Is metadata removed?
Yes. Camera details and GPS location are not carried over, which also saves a little space.