Compress Image
Shrink photos to any target size with elite WASM compression in your browser.
How to use Compress Image
- 1
Upload your image
Drop or click to select any JPG, PNG, or WebP photo you want to compress. The original size is shown instantly.
- 2
Set compression strength
Drag the slider to set your target quality. A real-time preview shows exactly how the final image will look and its size.
- 3
Download
Once you are happy with the quality/size trade-off, click 'Download' to save the compressed file.
Frequently asked questions
How do I compress an image to an exact target file size in KB?
Upload your image, type your desired target file size into the target size box, and click 'Compress'. Our algorithm automatically adjusts quality to hit that exact size.
What makes MozJPEG and OxiPNG WebAssembly (WASM) compression faster and more secure?
These elite WASM engines run directly in your browser's local memory, meaning compression happens instantly without ever uploading your private files to a server.
How does the live side-by-side preview show image quality differences?
When you compress an image, the tool renders the final output alongside the original, allowing you to zoom and pan to inspect the visual clarity before downloading.
Can I convert my image to WebP or PNG while compressing?
Yes, simply select your desired output format from the dropdown menu before hitting compress, and the tool will convert and optimize it simultaneously.
Does this tool automatically strip camera and GPS EXIF metadata?
Yes, all unnecessary hidden metadata—including sensitive GPS location data—is automatically stripped to reduce file size and protect your privacy.
Can I compress passport photos and signatures to under 20 KB or 50 KB for official forms?
Absolutely. Our target size algorithm is specifically designed to compress photos for strict government form requirements like SSC and GATE exams.
Are my private photos ever uploaded to a remote server or database?
No, your images are never uploaded. All processing happens 100% locally on your device for absolute privacy.
What happens if I set the target file size lower than technically possible?
If the target is too small, our algorithm will automatically start scaling down the image dimensions to ensure the file size requirement is met without destroying the visual quality.
Does compressing PNG images with OxiPNG preserve background transparency?
Yes, OxiPNG is a lossless compression engine that fully preserves image transparency while squeezing the file size down to the absolute minimum.
How does the manual percentage slider differ from the target size input?
The manual slider lets you adjust the exact compression quality visually, whereas the target size input automatically calculates the perfect quality needed to reach your desired KB.
Can I use this image compressor on Android and iOS mobile browsers?
Yes, this tool is fully responsive and runs the same powerful WASM compression engines on modern mobile browsers.
Does this tool add watermarks or branding to downloaded compressed images?
No, we never add watermarks or branding to your images. Your downloads are clean and untouched.
Is there a daily limit or file count cap on image compressions?
No, the tool is completely free with no usage caps, daily limits, or paywalls.
Can I upload large camera photos straight from my smartphone?
Yes, you can upload huge, high-resolution camera photos, and our local engine will compress them efficiently.
Does converting a JPEG to WebP during compression yield a smaller file size?
Generally, yes. WebP is a modern format that provides superior compression, often resulting in files 20-30% smaller than JPEGs at the same quality.
Can I adjust the compression percentage multiple times before downloading?
Yes, you can move the slider as many times as you like. The preview updates instantly without needing to re-upload.
Will text on scanned document photos remain legible after compression?
Yes, our algorithm is tuned to preserve readability. If a target size is too strict, we recommend using the side-by-side preview to confirm the text is still legible.
Does this compressor overwrite or delete the original image on my device?
No, the compressed image is downloaded as a completely new file, leaving your original photo perfectly safe and untouched.
Do I need to install plugins or create an account to use the tool?
No installation, extensions, or account registration is required. It works instantly in any modern web browser.
How fast is the WASM compression process compared to cloud-based compressors?
Because it bypasses server upload and download times, WASM compression is often significantly faster, processing images in mere milliseconds locally.