Form uploads
Get a photo or signature under a portal's 50 to 200 KB limit.
Compress Image
Make your images lighter for websites, forms and WhatsApp. Compression happens on your device, nothing is uploaded.
Your files stay with you. Your files never leave your browser. This tool runs on your device: nothing is uploaded to our servers, so there is nothing for us to store or see.
How to use it
- Choose or drag in one or more images.
- Pick the quality (75% is a good start) and, if you like, a maximum width.
- Press Compress images, check the saving, then download the files or a ZIP.
Where it helps
Website images
Lighter pictures make pages load faster on 4G.
WhatsApp and email
Send many photos without hitting attachment limits.
Good to know
Private by design
Pictures are processed in your browser and never uploaded to our servers.
PNG stays large
PNG is lossless; convert to WebP or JPG for big savings.
Width matters
A 1000 px wide photo at 70% is usually under 200 KB.
Check sharpness
Zoom in before you submit, especially for ID photos.
Questions people ask
How do you reduce the file size of a photo?
Choose your images, set the quality (75% is a good start) and, if you like, a maximum width, then press Compress images. You see the exact size before and after, and download the files or a ZIP. Phone photos often shrink by 50 to 80 per cent with no visible difference on screen.
- 75% Good starting quality. Adjust and retry.
- 50-80% Typical saving. On phone photos.
- Never bigger Originals kept. If a file would grow.
- 0 Uploads. On your device.
How do I compress an image online?
Choose or drag in one or more images, pick a quality level and, if you want, a maximum width, then press Compress images. The tool shows each file's size before and after, so you can judge the saving. Download single files or a ZIP with all of them, without signing up.
How much smaller will my image get?
It depends on the picture. Phone photos often shrink by 50 to 80 per cent at 70 to 80 per cent quality, with no visible difference on a screen. Images that are already compressed, and small icons, may barely change. The result always shows the exact before and after sizes.
Is the quality loss visible?
JPG and WebP are lossy, so lower quality means a smaller file and, eventually, visible blur or blocky patches. Between 70 and 85 per cent quality, most people can't tell the difference on a phone or laptop screen. If the result looks worse than you'd like, raise the slider and compress again.
Why didn't my PNG get smaller?
PNG is a lossless format, so the browser can only re-save it with the same pixels, which rarely saves much. To make a PNG much smaller, convert it to WebP or JPG, or reduce its width. If a compressed file would come out bigger, the tool keeps your original instead.
Are my images uploaded to a server?
No. Compression runs inside your browser using its built-in image tools, so your files aren't sent anywhere. That makes it safe for ID cards, signatures, receipts and other private pictures. After the page loads, it even works without an internet connection, which you can check yourself.
How do I reduce a photo to 100 KB or 50 KB?
Lower the quality and the maximum width a little at a time and check the result size after each try. A photo 1000 pixels wide at 70 per cent quality is usually well under 200 KB. Many government and exam forms ask for 20 to 200 KB, so a few attempts is normal.
How do I compress a signature or passport photo for a form?
First crop the photo to the required shape with Crop image, and resize it to the pixel size the form asks for. Then compress it here until it fits the size limit, often 20 to 50 KB for signatures. Check that the face or signature is still sharp before uploading.
Can I compress many images at once?
Yes. Add several images together and they're compressed with the same settings, then download them all as one ZIP file. That's handy for product photos, event pictures or a set of documents. Very large batches are faster on a laptop than on a phone. Each file keeps its own name.
Which format gives the smallest files?
WebP usually gives the smallest files for the same visible quality, and it supports transparency. JPG is a close second for photos and opens everywhere. PNG is lossless and best kept for logos, screenshots and graphics with sharp edges. Use Convert image to switch formats.
Does compressing remove photo location data?
Re-saving an image in the browser usually drops most hidden metadata, such as camera details and GPS location, because only the pixels are written to the new file. If removing location data matters, check the compressed file's details before sharing it publicly. Your originals keep theirs, so share the copies.
Why do compressed images look blocky?
Because the quality is set too low for that picture. Images with fine detail or text show artefacts sooner than simple photos. Raise the quality slider, or reduce the width instead, which often saves as much space with less visible damage to the picture. Text-heavy images need higher quality.
Should I compress images for my website?
Yes. Large images are the most common reason small business websites load slowly on mobile data, which loses visitors and hurts search rankings. Resize photos to the width they're shown at, compress them to around 70 to 80 per cent quality, and prefer WebP. Visitors on mobile data will notice.
Does it work on a phone?
Yes, in modern mobile browsers. Pick photos from your gallery, set the quality and download the smaller versions to your phone. It's useful before uploading to a portal from a phone, where large camera photos often exceed the allowed file size. No app or account is needed for any of it.
Will my original photos be changed?
No. The tool creates new compressed copies and never touches your originals. Keep the originals for printing or future edits, because compression can't be undone: once detail is removed from a compressed copy, it can't be put back. Store the originals somewhere safe, such as a cloud folder or your computer.
Is it free?
Yes. Compressing images is free, with no sign-up, no watermark and no daily limit. It's one of the free image tools from Marketiism, alongside resize, crop, convert and watermark, all running in your browser without uploading your pictures. Business use is fine, and nothing is added to your images, not even a small logo.
Want this inside your own account?
Marketiism keeps your invoice numbers, GST reports, UPI payment links and WhatsApp reminders in one place. Leave your details and we'll call to set it up for your business, or start the trial yourself.
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