Compress images without uploading them anywhere
JPG, PNG, WebP and iPhone HEIC — shrunk on your own device. Check every result with the before/after slider before you keep it.
This low, most photos come out blocky and smeared. Drag right for a result you can use.
We find the best quality that still fits under this.
Advanced
For upload forms that demand a size, like 236 × 79. The middle of your image is kept.
Fill both boxes, or leave both empty.
Leave empty to keep the original width. 1920 suits a website, 1080 a phone.
PNG keeps every pixel exactly. That makes it right for logos, screenshots and anything needing transparency — and wrong for photographs, where it usually produces a file several times larger than the original. It also has no quality dial and cannot aim for a target size. For photos, choose JPEG or WebP.
The free plan compresses 5 images at a time. Pro removes the limit and adds ZIP downloads.
See Pro — ₹199/monthThese came out bigger than the files you started with. Keep your originals — and if these are photographs, switch Save as to JPEG or WebP.
- No uploads
- No sign-up to start
- No watermarks
- Strips GPS data
How it works
- 1
Drop your images in
One file or forty. They are read straight from disk into your browser — nothing is sent anywhere.
- 2
Check the result yourself
Every image gets a before and after slider. Drag it across and decide whether the quality holds up, instead of taking a percentage on faith.
- 3
Download what you keep
Save the ones you are happy with. If a file came out larger than the original, DropKB says so and tells you to keep yours.
Common jobs, already set up
Each of these opens the tool with the right settings for that job.
By file size
By format
For Indian document uploads
Questions people actually ask
- Are my images uploaded to a server?
- No. The compression runs inside your browser using its own image encoder. Your files never leave your device, which is also why it works on a slow connection and why there is no upload progress bar.
- How much smaller will my images get?
- A photo straight from a phone typically drops by 60–80% at a quality setting most people cannot tell apart from the original. Screenshots and flat graphics often do better. Files that are already well compressed may not shrink at all, and DropKB tells you when that happens instead of handing you a bigger file.
- Does compressing remove EXIF data like GPS location?
- Yes. Re-encoding produces a clean file with no metadata attached, so the location, camera model and timestamp your phone recorded are not carried into the version you share.
- Which format should I choose?
- WebP for almost everything — it is smaller than JPEG at the same quality and every current browser reads it. Choose JPEG when the file is going somewhere old or fussy, such as a government upload form. Choose PNG only when you need lossless output or transparency.
- Can I compress to an exact file size?
- Yes. Switch to target size mode and enter a number in KB. DropKB searches for the highest quality that still fits under it. If the target cannot be reached even at the lowest quality, it says so and suggests reducing the width, rather than quietly giving you something too large.