Image Compressor.
Compress JPG, PNG, and WebP images. Select quality or set a target file size. 100% client-side.
Drag & drop your images here, or browse files
Supports JPEG, PNG, WebP. Process multiple images locally.
Visual Comparison Slider
Drag handle to compare detailsSelected Images (0)
Compression Settings
We iteratively compute the optimal quality to fit files under this target.
Output Results
Images will be automatically saved locally.
How to Reduce Image Size Online with Maximum Privacy
Need to make your files smaller for web performance or application forms? Our high-performance image compressor is optimized to reduce image size directly inside your browser window. By utilizing modern client-side Canvas rendering, you can compress image online in real time. We don't upload your images to remote servers, meaning this is the most secure and private online image compressor available.
Format-Specific Optimization: Compress JPG, PNG & WebP
Not all image formats compress the same way. Our tool supports various optimization options:
- Compress JPG: Adjust the quality slider from 100% down to 80% to trim non-essential metadata and visual details, yielding up to an 85% file size reduction with zero perceptible degradation.
- Compress PNG: PNG compression is lossless, which can limit size reduction. For significant savings, consider converting PNG files to modern formats like WebP or AVIF using our conversion settings.
- Compress WebP: Choose Google's highly efficient web format to get smaller sizes than equivalent JPG or PNG formats automatically.
Targeting Target Sizes: Hitting 50KB & 100KB Limits
When applying for examinations or job portals, you often encounter strict file size limits. It is common to be asked to compress image to 50KB or use an image compressor to 100KB target for documents like scanned transcripts or identification cards.
Similarly, portal portals ask you to compress passport photo dimensions. Our compressor allows you to toggle the quality slider and view the real-time size estimate. Drag the slider until the estimated output size satisfies the portal constraints, and download the compressed file instantly.
Interactive Visual Quality Slider
Our compressor features a split comparison slider that lets you visually compare the original and compressed image side-by-side in real time. Drag the center handle left or right to inspect the pixels. This visual feedback ensures you can lower the quality to the absolute minimum necessary to fit size limits (like 50KB) without accidentally introducing visual artifacts or blur, maintaining professional quality on all your files.
Frequently Asked Questions
How does client-side image compression protect my privacy?
Our compression engine runs entirely inside your local browser tab's memory (RAM) using standard HTML5 Canvas buffers. No raw image data is ever uploaded to our servers, keeping your passport photos, signatures, and personal files completely secure.
Can I compress bulk PNG and WebP files?
Yes, our batch engine supports bulk files. You can upload multiple PNG, JPG, and WebP assets simultaneously, adjust global quality sliders, and download all optimized results instantly.
What is the visual difference slider used for?
It is a live split-view slider overlaying your source and compressed images. Dragging the handle lets you visually compare the original pixels against the compression output to ensure you don't introduce visual artifacts.