Image Compressor
Compress JPG, PNG, and WebP images in your browser without uploading to any server.
Image Compressor reduces JPG, PNG, and WebP file size using browser-based compression. Upload an image, set the quality level, and download the compressed file. Government portals enforce strict upload limits: UPSC photo under 40 KB, SSC under 20 KB, IBPS under 50 KB. Your image is processed entirely in your browser and never sent to any server. Free, no signup required.
Drop an image here or click to upload
JPG, PNG, WebP — up to 10 MB
Your image is processed entirely in your browser and never uploaded to any server.
Frequently Asked Questions
- How do I compress an image for UPSC form?
- UPSC online forms require a photograph under 40 KB and a signature under 10 KB. Upload your photo to the compressor, select JPG format, and reduce quality until the output falls below 40 KB. Aim for 25-35 KB to leave a buffer. The dimensions must also match UPSC specifications: 3.5 cm × 4.5 cm at 200 dpi.
- How do I reduce image size below 20 KB for SSC?
- Upload the photo to the compressor, choose JPG format, and start at 60% quality. Check the compressed size shown in the panel. If it is above 20 KB, reduce quality further in 10% steps until the size falls below the limit. Most SSC forms accept passport-size photos at 200 × 230 pixels and under 20 KB.
- Does compressing an image reduce its quality?
- JPG and WebP compression reduces quality slightly by discarding fine detail that is hard to see at normal zoom. Reducing from 100% to 80% quality cuts file size by 60-75% with minimal visible change. PNG compression is lossless and does not affect quality. Going below 60% quality on JPG introduces visible blurring and color blocks.
- Is my image uploaded to a server when I compress it?
- No. All compression happens in your browser using the Canvas API. Your image never leaves your device. No file is uploaded to any server, and no image data is stored or transmitted.
- What image formats can I compress?
- The tool accepts JPG, PNG, and WebP images up to 10 MB. Output can be saved as JPG, WebP, or PNG. Converting from PNG to JPG or WebP and then compressing produces much smaller files than compressing PNG directly.
- What is the difference between JPG and WebP compression?
- WebP is a newer format from Google that achieves 25-35% smaller files than JPG at the same visual quality. Browser support for WebP is universal in Chrome, Firefox, and Safari. JPG is more widely accepted by older systems and government portals. Use WebP for web images and JPG for document uploads where WebP may not be accepted.
What is Image Compressor?
Image Compressor reduces the file size of JPG, PNG, and WebP images without uploading them to any server. Upload an image, adjust the quality level, and download the compressed result. All processing uses the browser's Canvas API on your own device.
How does it work?
The tool draws your image onto an HTML Canvas. The browser then re-encodes it at a lower quality setting using its built-in encoder. For JPG and WebP, reducing quality from 100% to 80% typically cuts file size by 60-75% with minimal visible change. PNG uses lossless compression, so quality is unaffected but file size reduction is smaller than with JPG or WebP.
A quality slider from 10% to 95% controls the trade-off between file size and visual clarity. The result panel shows original size, compressed size, and the percentage reduction before you download.
When should you use Image Compressor?
Government portals in India enforce strict file size limits on document uploads. UPSC requires a photo under 40 KB and a signature under 10 KB. SSC forms cap the photo at 20 KB. IBPS and bank exam portals specify 20-50 KB limits. An uncompressed phone photo of 2-4 MB triggers an immediate rejection.
Email attachments become unwieldy above 5-10 MB. Compressing photos before sending avoids rejection by mail servers and reduces load time for the recipient.
Product images for e-commerce require a balance between visual quality and load speed. Marketplace pages with smaller images load faster. Amazon requires images of at least 1000 pixels on the longest side for zoom functionality. File size limits apply per listing too. Compressing at 80-85% JPG quality retains the detail buyers look for while keeping the file manageable.
Website hero images and blog post photos are often uploaded at full camera resolution. A 3 MB hero image compressed to 200 KB loads in a fraction of the time. Google's Core Web Vitals scoring counts image size against the Largest Contentful Paint metric.
Tips to get the best results
- Start at 80% quality for JPG or WebP. Examine the result zoomed to 100% before going lower. The quality drop from 80% to 60% is more noticeable than from 100% to 80%.
- For government portal uploads, target 50-70% of the size limit. A photo compressed to 30 KB for a 40 KB limit gives a buffer for browser rounding differences.
- PNG uses lossless compression. Converting to WebP or JPG before compressing gives much smaller files, at the cost of transparency and lossless pixel accuracy.
- Avoid compressing an already-compressed JPG multiple times. Each cycle adds visible artifacts. Start from the original file whenever possible.