Compress a JPG, PNG, or WebP in this browser. Set the quality, check how many kilobytes you saved, and download the smaller file.
Overview
Use this image compressor for JPG, PNG, and WebP. Set the quality, compare the new file size, and download a smaller picture. Nothing is uploaded here.
What this page covers
Choose a JPG, PNG, or WebP. The page re-encodes it as JPEG or WebP at the quality you set.
Quick answer
Use this image compressor for JPG, PNG, and WebP. Set the quality, compare the new file size, and download a smaller picture. Nothing is uploaded here. Use it in a browser with no account required, then review the output before publishing or shipping.
What this image compressor does
Choose a JPG, PNG, or WebP. The page re-encodes it as JPEG or WebP at the quality you set. A lower quality makes a smaller file. It does not upload the picture.
JPEG, WebP, and transparency
WebP is usually the smaller choice and can keep a transparent background. JPEG is safer for email and older apps, and it paints transparency white. PNG logos that must stay sharp belong in PNG.
When the new file is not smaller
A high quality setting can make a file larger than a photo that was already compressed. Lower the quality, or shorten the longest side, and compare the sizes again before you download.
How to use this tool
- Open Image Compressor in a modern browser.
- Paste or type your text, code, list, or value into the input area.
- Review the output, then copy or download the result for your workflow.
Getting started
Compress a JPG, PNG, or WebP in this browser. Set the quality, check how many kilobytes you saved, and download the smaller file.
Topics this page helps with
People usually land here when searching for image compressor, compress image online, reduce jpg size, compress png webp. Image Compressor is designed for quick copy-paste workflows: paste input, review the preview, then copy or download the result.
Privacy and local processing
Image Compressor runs in your browser on Case Modify. Typical conversions do not upload your pasted text to our servers for processing.
You still share data with your browser vendor and network as with any website; see our privacy policy for analytics and ads. When you work with secrets, credentials, or personal data, review the output locally before you publish or send it.
Details: privacy policy.
Before you publish
Unicode styling, formatted code, and converted units can look correct in the preview but fail in the target app because of font support, line breaks, or platform limits.
Test a short sample in the destination (bio field, IDE, CMS, or spreadsheet) before you paste a long block.
Workflow tips: how Case Modify works, documentation hub.
Limits to keep in mind
Free browser utilities excel at quick edits, classroom exercises, and copy-paste formatting. They are not a replacement for licensed design software, production build pipelines, or compliance review.
When a platform rejects styled Unicode, fall back to plain ASCII from a case converter or remove formatting before you submit final copy.
Related pages on Case Modify
PNG to JPG — Flatten PNG transparency onto a white JPEG for email, Word, and CMSes that still reject PNG.
JPG to WebP — Re-encode JPEG photos as WebP for smaller hero images on modern sites. Another lossy pass—keep a master file.
PNG to WebP — Keep PNG alpha in a smaller WebP for UI icons and logos. Check edges if the encoder fringes transparency.
WebP to JPG — Export a WebP still as JPEG when a kiosk or older Office build cannot open WebP. Animation and alpha are dropped.
Frequently asked questions
Does the image compressor upload my photo?
No. Compression uses the browser canvas. Closing the tab discards the file.
Will compressing a PNG keep transparency?
Choose WebP if you need a transparent background. JPEG flattens transparent pixels onto white.
What is a good quality setting?
75% is a practical start for photos. Drop toward 50% for thumbnails. Check the preview before you replace the original.
Related Tools
PNG to JPG: Flatten PNG transparency onto a white JPEG for email, Word, and CMSes that still reject PNG.
JPG to WebP: Re-encode JPEG photos as WebP for smaller hero images on modern sites. Another lossy pass—keep a master file.
PNG to WebP: Keep PNG alpha in a smaller WebP for UI icons and logos. Check edges if the encoder fringes transparency.
WebP to JPG: Export a WebP still as JPEG when a kiosk or older Office build cannot open WebP. Animation and alpha are dropped.