Online Image Compressor
Compress images and photos to exact 20KB, 50KB, or 100KB limits without quality loss. 100% private, zero server uploads.
Drop photo to compress to target size
Supports JPG, PNG, WebP • Instant binary search compression
How Our Image Compressor Works
ImgDrop is a free online image compressor that works entirely inside your browser using the HTML5 Canvas API. When you drop an image, it is decoded into raw pixel data, re-encoded at the optimal quality level, and handed back as a compressed download in milliseconds. No uploads, no cloud servers, no waiting.
Unlike cloud-based image compressors such as TinyPNG or Compressor.io that send your photos to remote servers, ImgDrop's client-side compression means your images never leave your device. This makes it the safest image compressor for sensitive documents like passport photos, Aadhaar cards, PAN cards, and signature images.
Why Use ImgDrop Image Compressor
Common Uses for Image Compression
- Government exam forms (SSC, UPSC, IBPS, NEET, JEE): Compress passport photos and signatures to exact 20 KB or 50 KB required by exam portals.
- Passport and visa applications: Reduce photo size to under 100 KB while keeping full resolution required by immigration portals.
- Email attachments: Compress images before sending to reduce total attachment size and speed up delivery.
- Website optimisation: Compress images before uploading to WordPress, Shopify, or Wix to improve page load speed and Core Web Vitals scores.
- WhatsApp and social media: Reduce image file sizes without visible quality loss before sharing on messaging platforms.
- Sensitive documents: Compress Aadhaar, PAN card, or bank statement scans locally without risking data privacy on cloud servers.
Frequently Asked Questions
How do I compress an image to a specific KB size?
Upload your image, type your target size in the Target Max File Size field (e.g. 50 for 50 KB), and click Download. ImgDrop automatically finds the optimal quality level to keep the output strictly under your specified KB limit.
Does compressing an image reduce its quality?
JPEG compression is lossy, meaning some quality is sacrificed to achieve smaller sizes. ImgDrop uses the highest possible quality level that still fits within your target, so the visual difference is minimal and usually invisible to the human eye for targets above 30 KB.
Why do government forms reject my photos?
Most government, exam, and visa portals enforce strict file size caps such as maximum 50 KB or 100 KB. ImgDrop's binary-search compression automatically calibrates to deliver the sharpest possible image that stays strictly under your exact KB limit.
Is this image compressor really free?
Yes, completely free. No hidden fees, subscription plans, daily limits, or watermarks on downloaded images. ImgDrop is supported by non-intrusive display advertising.
Are my private photos and documents safe?
Yes. Unlike other online compressors that upload your sensitive documents to cloud servers, ImgDrop processes everything locally on your computer using the browser Canvas API. Your photos never leave your device.
Which image formats can I compress?
You can compress JPEG, PNG, WebP, AVIF, GIF, and BMP files. Output can be saved as JPEG, PNG, WebP, or AVIF. For the smallest file sizes at maximum quality, use JPEG or WebP output.