Resize Image
Resize by pixels, percent, inches or cm with aspect lock.
OpenCompress JPG, PNG, WebP and GIF while keeping visual quality. - runs entirely in your browser. Free, fast and private.
Drag JPG, PNG, WebP, or GIF files into the drop zone.
Balance file size against visual fidelity with the quality slider.
Canvas re-encodes pixels in your browser without uploading.
Compare before/after sizes and save the compressed image.
A product page is sluggish because hero shots are 4 MB each. Image Compressor re-encodes JPG, PNG, WebP, and GIF in the browser so you can trade a little quality for a lot of weight.
Compress when Core Web Vitals, email templates, or CDN bills care about bytes. Start with a moderate quality setting, compare visually at 100% zoom on faces and text, then push lower only if needed. PNG is often better as WebP for photos; keep PNG when you need sharp UI chrome with transparency.
Pitfall: compressing twice in a pipeline and wondering why artifacts look muddy. Prefer one intentional encode from the master file.
Tip: after compress, strip EXIF if the photo might still carry GPS from a phone camera.
Re-encoding happens on-device in this session. Your photos are not batched to a cloud compressor for this tool.
Processes data instantly with no server round-trips.
Your data never leaves your browser. Nothing is uploaded.
Works in any modern browser. Nothing to download or install.
No limits, no sign-up, no credit card required.
Works on desktop, tablet and mobile devices.
Beautiful in both themes. Your preference is saved.
Keyboard shortcut
Cut hero and gallery weights without opening Photoshop.
Meet ESP attachment and embedded-image size limits.
Shrink SKU photos for storefront max upload rules.
Answers for this tool. For site-wide help, open the FAQ hub.
Image tools process pixels in the browser with Canvas and related APIs. Images are not uploaded to OneDevToolkit for these client-side jobs.
PNG, JPEG, and WebP are widely supported. Some tools also accept GIF or SVG depending on the operation.
Lossless operations keep quality; JPEG/WebP compression trades quality for size. Use higher quality settings when print fidelity matters.
Yes for tools that preserve alpha. Converting to JPEG removes transparency - keep PNG/WebP when you need an alpha channel.
Limits come from browser memory. Extremely large megapixel images may fail - downscale first if needed.
Many image studios show preview panels. Download both versions if you need an external comparison.
Some tools intentionally remove EXIF; others preserve pixels only. Check the tool description for metadata behaviour.
If the UI shows a multi-file queue, yes. Otherwise process files one by one or script downloads locally after each run.
HEIC from some phones may need conversion to JPEG/PNG first. Export from Photos as JPEG when uploads fail.
Browse Media Tools for resize, convert, compress, and EXIF utilities that match Compress Image.