Image Compressor — Free Online JPG, PNG, WEBP Compress
Compress JPG, PNG and WEBP images free online. Reduce image file size without uploading anything. In-browser, no signup.
How to compress images
Drop your PNG, JPG, or WEBP images. Multiple files at once is fine.
Pick the output format (or keep original) and adjust the quality slider.
Optionally set a max width — useful for shrinking oversized photos.
Click Compress. Each file is processed in your browser; download individually or as a ZIP.
Why use a Image compressor?
Smaller image files load faster, save bandwidth, and consume less storage. For websites, a good Image compressor means faster page loads, better Core Web Vitals, better search rankings, and a noticeably better experience for visitors on mobile networks. For email, smaller attachments mean fewer rejections from mail providers and faster sends. For backups and archives, compressing image files lowers your cloud storage bill.
A Image compressor is also a privacy tool. By stripping unnecessary metadata and re-encoding the image fresh, you remove identifying information that may have been embedded by the camera, scanner, or software that produced the original. Our Image compressor strips embedded metadata by default so you can share or publish without leaking hidden details.
Image files in particular are often produced at much higher quality than the use case requires. A photograph straight from a modern phone might be 8 MB; the same photo run through this Image compressor at "good enough for the web" quality is often under 500 KB. The difference is invisible to most viewers but transformative for performance — and that is exactly the gap a great online Image compressor should bridge.
How does the Image compressor work?
When you drop a image file in, the Image compressor loads it into memory inside your browser. Depending on the image format it then runs the appropriate browser API or WebAssembly engine — Canvas for images, FFmpeg for video and audio, pdf-lib for PDFs — to decode and re-encode the image at your chosen quality level. There is no upload step at any point.
The output is a fresh image file with the new (smaller) size. The original is not modified, and nothing leaves your device. You can compare input and output sizes side by side in the result panel before downloading the compressed image.
Typical results from this Image compressor: 50–80% reduction for images and audio with no perceivable quality loss; 30–60% reduction for typical video clips by adjusting the constant rate factor (CRF). PDFs vary widely — text-heavy PDFs shrink less, image-heavy PDFs shrink dramatically.
Tips for the best Image compressor balance
Pick a quality preset that matches how the image will be used. For web, prioritize size; for archive, prioritize quality. The presets in this Image compressor are labelled with their typical use case so you do not have to guess.
If the compressed image is too small or too soft, raise the quality slider and re-run the Image compressor. The original is still in your input box. Online compression is fast enough that experimenting is cheap.
For maximum image compression, combine quality reduction with dimension reduction. A 1920×1080 image scaled to 1280×720 and re-encoded at 75% quality through the Image compressor is dramatically smaller than the same image at 95% quality and full resolution — and for most online use cases, the visible difference is zero.
For batch image compression, this Image compressor accepts up to five files at once. Each file is processed independently and shown with its own size delta and download button. A "Download all as ZIP" button packages the batch.
Frequently asked questions
Is this Image compressor free?
Yes. The Image compressor is 100% free: no signup, no watermark, no daily limit. It is funded by display advertising, never by selling your image files or data.
Will the Image compressor reduce image quality?
It depends on how much you compress. Mild compression (around 80% quality for images, CRF 23 for video) is visually indistinguishable from the original image to most viewers. Aggressive compression introduces artifacts that may or may not matter for your use case. Try a setting and download a sample before committing.
Is it safe to compress image online here?
Yes. The Image compressor runs entirely in your browser. Image files never leave your device. There is no upload, no cloud processing, and no log of what you compressed.
How much can the Image compressor shrink my file?
It depends on the original image. A high-quality photo can usually be reduced 50–80% with mild visible quality loss. A PNG containing a screenshot may shrink less because it is already efficiently compressed for that content type. Audio and video reduction varies by source bitrate.
Can I batch compress image files?
Yes — the Image compressor accepts up to five image files at a time. Each file is processed individually and listed with its own size delta and download button.
Do you keep a copy of my compressed image?
No. We do not have a server that sees your image files. The Image compressor runs entirely in your browser, so there is nothing for us to store.
Why is the result slightly different from another image compressor?
Different image compressors use different encoders, defaults, and metadata handling. Our defaults aim for a good balance of size and quality, but minor differences from another tool are normal even at the same quality setting.
Can I use this Image compressor on a phone?
Yes. The Image compressor is fully responsive and works on iOS Safari and Android Chrome. You can compress image files straight from your phone storage and save the result back to downloads.