🖼️ QR & Image Tools

Image Compressor & Resizer

Compress and resize JPG, PNG, and WebP images right in your browser. Shrink file size, change dimensions, and convert formats — your photos never leave your device.

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Drop an image below, adjust the quality and size, and download a smaller version instantly. Everything happens locally in your browser — nothing is uploaded to any server.

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Drop your image here

or click to browse — JPG, PNG, WebP, GIF supported

Choose Image

Original

—

Result

—

📐 Resize

Resize Mode

🗜️ Compress & Convert

Output Format

Quality

80%

Lower quality = smaller file. 70–85% is the sweet spot.

What is an Image Compressor?

An image compressor reduces the file size of your photos and graphics while keeping them looking good. Large image files slow down websites, fill up storage, exceed email and upload limits, and waste mobile data. This tool compresses and resizes JPG, PNG, and WebP images directly in your browser, often shrinking files by 50–90% with little or no visible quality loss — and because it runs locally, your images are never uploaded to any server.

Whether you're speeding up a website, emailing photos, uploading to a form with a size limit, or just saving space, compressing images is one of the quickest wins available. You stay in control of the trade-off between file size and quality with a simple slider.

How to Compress an Image

Drop your image into the box above (or click to browse). Choose your output format and drag the quality slider to balance size against clarity — 70–85% usually looks identical to the original at a fraction of the size. Optionally resize the image by dimensions or percentage. Click Compress, compare the before-and-after sizes, and download your smaller image.

How to Resize an Image

Resizing changes the pixel dimensions of your image, which also reduces file size. Choose "By dimensions" to set an exact width and height (with the aspect ratio locked so it doesn't stretch), or "By percentage" to scale the whole image down proportionally. Resizing to the dimensions you actually need — rather than uploading a huge original — is one of the most effective ways to cut file size for websites and social media.

Features of This Image Tool

Compress: reduce file size with an adjustable quality slider.
Resize: by exact pixel dimensions or by percentage, with aspect-ratio lock.
Convert format: output as JPEG, WebP, or PNG.
Live comparison: see original vs result size and the percentage saved.
Drag and drop: or click to browse — works on phones too.
100% private: images are processed in your browser and never uploaded.

JPEG vs PNG vs WebP — Which Should I Use?

JPEG is best for photographs and complex images with many colours — it compresses them efficiently with adjustable quality. PNG is lossless and supports transparency, making it ideal for logos, icons, screenshots, and graphics with sharp edges or transparent backgrounds — but files are larger. WebP is a modern format that typically produces the smallest files of all at the same quality, supports transparency, and is now supported by all major browsers — making it the best choice for websites where file size matters most.

💡 For websites, WebP at 75–85% quality usually gives the smallest files with excellent quality. For photos you'll email or print, JPEG at 85% is a safe choice. Use PNG only when you need transparency or pixel-perfect graphics, since it produces much larger files for photos.

Why Compress Images?

Faster websites: images are usually the biggest part of a page's weight; compressing them dramatically improves load speed and SEO.
Email and upload limits: shrink photos to fit attachment caps and form size limits.
Save storage and data: smaller files mean more room on your device and less mobile data used.
Better user experience: pages that load fast keep visitors engaged and reduce bounce rate.
Social media: platforms re-compress large uploads anyway — pre-sizing keeps you in control of quality.

Image Compression and Website Speed

Images typically account for the majority of a web page's total size, so compressing them is the single most effective way to speed up a slow site. Faster pages rank better in Google (page speed is a confirmed ranking signal), reduce bounce rates, and convert better. Serving appropriately sized, compressed images — ideally in WebP — is a core recommendation of Google's PageSpeed Insights and Core Web Vitals. Resizing an image to the dimensions it actually displays at, then compressing it, can cut page weight by 80% or more.

Does Compressing Reduce Image Quality?

It can, but usually not noticeably. JPEG and WebP use "lossy" compression, which discards some data to save space — at high quality settings (80%+), the loss is invisible to the eye while the file shrinks dramatically. At very low quality settings, you'll start to see artefacts and blurriness. The quality slider lets you find the sweet spot for your needs. PNG compression is lossless, so it never reduces quality, but it saves less space on photos.

Is It Safe to Compress Images Here?

Completely. This tool processes your images entirely within your browser using the HTML canvas — your photos are never uploaded to a server, stored, or seen by anyone. This is a genuine privacy advantage over many online image compressors that upload your files to process them. Here, you can compress sensitive or personal images with total confidence, and it even works offline once the page has loaded.

Frequently Asked Questions

How do I compress an image without losing quality?

Use a high quality setting (around 80–85%) with JPEG or WebP format. At this level, the file size drops significantly while the image looks identical to the original to the human eye. You can also resize the image to the dimensions you actually need — a photo displayed at 800px wide doesn't need to be 4000px. Combining sensible resizing with 80% quality usually cuts file size by 70–90% with no visible loss.

How do I reduce the file size of a photo?

Drop the photo into the tool above, choose JPEG or WebP, and lower the quality slider to around 75–85%. Optionally resize it smaller if it's larger than you need. Click Compress and download — you'll typically see a 50–90% reduction. The before-and-after comparison shows exactly how much you saved.

What's the best image format for web?

WebP is generally the best for websites — it produces the smallest files at a given quality and is supported by all modern browsers. JPEG is a reliable, universal choice for photos. PNG is best only when you need transparency or pixel-perfect graphics like logos and icons, since it creates much larger files for photographs.

Are my images uploaded to a server?

No. This tool processes images entirely in your browser using JavaScript and the HTML canvas. Your images never leave your device, are never uploaded, and are never stored anywhere. This makes it completely private and safe for personal or sensitive photos — a real advantage over compressors that upload your files to process them.

Can I resize and compress at the same time?

Yes. Set a resize mode (by dimensions or percentage) and a quality level, then compress — the tool applies both in one step. Resizing reduces the pixel count and compression reduces the data per pixel, so combining them gives the smallest possible file. This is the most effective approach for web images.

What does the quality slider do?

The quality slider controls how much data the compressor keeps for JPEG and WebP images. Higher values (90–100%) preserve more detail but produce larger files; lower values (40–60%) make tiny files but can introduce visible blurriness or artefacts. The 70–85% range is the usual sweet spot — substantial size savings with no noticeable quality loss. PNG is lossless, so the slider doesn't affect it.

Why is my PNG not getting much smaller?

PNG uses lossless compression, which preserves every pixel exactly — great for graphics and transparency, but it can't shrink photographs nearly as much as JPEG or WebP. If your PNG is a photo, convert it to JPEG or WebP using the format option to see a dramatic size reduction. Keep PNG only if you need transparency or perfectly sharp edges.

Does compressing an image affect the original file?

No. The tool creates a new, compressed copy that you download — your original file on your device is never touched or changed. You can experiment with different quality and size settings freely, and your source image stays exactly as it was. Just click Download to save the new version.

Can I compress images on my phone?

Yes. This tool works in mobile browsers — tap the upload area to choose a photo from your camera roll, adjust the settings, and download the compressed version back to your device. Because everything runs locally, it works without uploading your photos anywhere, which also means it's fast and private on mobile data.