✨ 50+ Free Calculators  —  No Signup Required  —  Fast & Accurate Results

Image Compressor – Compress & Resize JPG, PNG, WebP Online (Free)

Written by CalculatorSphere Team• Last updated: June 29, 2026How we verify our calculators

Quick Answer: This free image compressor shrinks the file size of your JPG, PNG or WebP photos right in your browser — your images are never uploaded to any server. Choose an image, set the quality (and optionally a smaller width), and download a much smaller file. It is perfect for compressing photos for websites, email, forms and WhatsApp.

Image Compressor & Resizer





Advertisement

How to Compress an Image

  1. Click the box and choose a JPG, PNG or WebP image from your device.
  2. Set the quality — 70–80% gives a big size drop with little visible loss.
  3. Optionally enter a max width to resize large photos (e.g. 1200 px for web).
  4. Pick a format (WebP is usually the smallest) and click Compress Image.
  5. Click Download compressed image to save it.

Quality Settings Guide

QualityBest forResult
90–100%Print, photographyLargest file, near-original
70–85%Websites, blogsSmall file, hard to tell apart
50–65%Email, WhatsApp, formsVery small, slight softening
10–40%Thumbnails onlyTiny file, visible quality loss

JPG vs WebP vs PNG

FormatBest for
JPGPhotos; widely supported everywhere
WebPSmallest files for the web; great quality-to-size
PNGGraphics, logos and images that need transparency

Why Compress Images?

  • Faster websites — smaller images load quicker and improve SEO.
  • Fit upload limits — forms and portals often cap file size (e.g. 100 KB or 1 MB).
  • Save storage and data — smaller files use less space and mobile data.
  • Easier sharing — quicker to send by email or WhatsApp.

Is It Safe and Private?

Yes. This tool processes your image entirely inside your browser using HTML canvas. Your photo is never uploaded to a server, stored, or seen by anyone — it never leaves your device.

Advertisement

Frequently Asked Questions

How do I reduce the size of an image?

Upload it here, lower the quality to around 70–80%, optionally set a smaller max width, and click Compress Image. Then download the smaller file. WebP gives the smallest results.

Are my images uploaded to a server?

No. Compression happens entirely in your browser, so your images stay private on your device and are never sent anywhere.

How can I compress an image to 100 KB?

Lower the quality slider and reduce the max width until the “Compressed” size shows around 100 KB. WebP and lower widths help reach small targets.

Will compressing reduce image quality?

Slightly, depending on the setting. At 70–85% quality the loss is usually invisible, while very low settings make it more noticeable. Preview before downloading.

What is the best format for the web?

WebP usually gives the smallest file at the same quality and is supported by all modern browsers. Use JPG when you need maximum compatibility.

Does it work on mobile?

Yes. You can choose a photo from your phone, compress it and download the smaller version, all in your mobile browser.

Conclusion

Compressing images is the easiest way to speed up your website, meet upload limits and save data — without sending your photos to a stranger’s server. Use the tool above to shrink any JPG, PNG or WebP in your browser and download the smaller file in seconds.

Related Tools


Leave a Comment

Your email address will not be published. Required fields are marked *

Advertisement
Advertisement
Advertisement
Scroll to Top