Image Compressor
ImageCompress PNG, JPEG and WebP images in your browser with an adjustable quality slider, batch processing and before-and-after file size preview. Batch friendly.
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About Image Compressor
High-resolution images eat bandwidth and storage, slowing down pages and blowing email attachment limits. This tool compresses PNG, JPEG and WebP images locally in your browser: drag in files for batch processing, tune the quality slider to balance size and clarity, and see before/after file sizes at a glance. Stripping EXIF metadata (location, camera model, capture time) also trims a little extra weight — something to be aware of if you need to keep GPS or camera info for archival. A common misconception is that you must shrink resolution to shrink the file; in practice most photos look great at 80% JPEG quality, so tune quality first to cut size dramatically while keeping full pixel dimensions. The original file is never modified — every compression produces a new file you can save and swap in. For example, dropping a 500KB PNG and tuning quality compresses it to about 120KB, great for page performance. Prefer compressing above-the-fold images first for the most visible loading-time gains with minimal visible quality loss.
How to Use
- Open the Image Compressor tool
- Upload the image file
- Adjust the output options as needed
- Click the Process button; results appear in real time
- Copy or export the result
Use Cases
- Optimize web images — Compress banners and product photos to shrink page weight and speed up loading.
- Slim email attachments — Compress photos below email attachment size limits to avoid send failures.
- Save cloud storage — Batch-compress images before uploading to cloud drives to save space and sync traffic.
- Social media fit — Compress images within the size limits of WeChat, Twitter and other platforms for quick sharing.
- E-commerce optimization — Compress product hero images while keeping clarity, balancing display quality and load speed.
FAQ
Does compression lose quality?
JPEG and WebP use lossy compression - lower quality means smaller size but more artifacts. PNG is lossless, so size reduction is limited. Preview at 80% quality first, then adjust.
How do I balance quality and size?
75-85% JPEG quality usually cuts weight noticeably with little visible loss. Start at 80%, then nudge down only if your target size demands it.
Does compression change dimensions?
By default it only adjusts compression and keeps the original resolution. To also scale down, process the image with our resize tool first.
Are EXIF and GPS data kept?
No. Compression strips EXIF metadata (location, camera, time) to reduce size. If those details matter for archives, back up the original first.
Which formats are supported?
PNG, JPEG and WebP for both input and output, with cross-format compression (e.g. PNG to WebP) also available.
Can I batch compress?
Yes. Drag in multiple images to batch-compress them, each showing its own before/after size comparison.