How to Compress Images Without Losing Quality

To compress an image without visible quality loss, open the free Compress Image tool, drop your photos in, set quality to about 80, choose WebP (or JPG if WebP isn't accepted), and limit the longest side to 2560 px or less. Press Compress and download. Most phone photos shrink by 70–90% and still look the same.

Why are my photos so big in the first place?

A modern phone camera saves 12 to 50 megapixels per photo. That is far more detail than any screen shows. A typical laptop screen is about 2 megapixels wide by tall, and an Instagram post is about 1.5 megapixels. Phones also save JPGs at a high quality setting to be safe, so a single photo is often 3–8 MB.

Two things make a file smaller:

1. Fewer pixels. Shrinking a 4000 × 3000 photo to 2000 × 1500 removes three quarters of the pixels. For screens, email and websites, you never see the difference.
2. Smarter compression. JPG and WebP throw away detail your eyes don't notice. The quality setting controls how much.

The best results come from doing both, gently.

How do I compress a photo step by step?

1. Open Compress Image and drag your photos onto the box, or click it to choose them. JPG, PNG and WebP all work, and you can add many at once.
2. Set Quality. 75–85 is the sweet spot. The default of 75 is a good start.
3. Set Longest side (px). 2560 suits large screens; 1600 is plenty for email and most websites; 1080 is ideal for social media.
4. Pick the Output format: WebP for the smallest file, JPEG for maximum compatibility, or Same as input.
5. Press Compress. Each file shows its old size, new size and the percentage saved.
6. Press Download next to each image.

Each photo can be up to 50 MB. They are processed one after another, so even a large batch won't crash your browser tab.

Which settings should I use?

What it's for	Longest side	Quality	Format
Website images	1600–2000 px	75–80	WebP
Email attachments	1600 px	75	JPEG
Social media posts	1080–1440 px	80	JPEG
Keeping a sharp archive copy	3000+ px	85–90	JPEG
Logos and screenshots	Original	n/a	Same as input (PNG)

If you need a file under an exact size, such as 100 KB for a form, use Compress to Exact KB instead. It finds the best quality that fits automatically. Our guide to compressing to 20 KB, 50 KB or 100 KB covers forms in detail.

JPG, PNG or WebP: which should I choose?

• WebP gives the smallest files at the same quality. Every current browser supports it, so it is the best choice for websites.
• JPG opens everywhere: old Windows programs, Word, upload forms and printers. Choose it when you're not sure the receiver accepts WebP.
• PNG is lossless. It is right for logos, icons, text screenshots and anything with transparency, but photos saved as PNG stay large.

For a deeper comparison, read JPG vs PNG vs WebP.

Common mistakes that ruin quality

• Compressing the same file again and again. Every JPG save loses a little detail. Always start from the original photo.
• Setting quality too low. Below about 60, skies and skin show blocky patches. Lower the pixel size first; it costs less quality.
• Enlarging small images. Making an image bigger can't add detail; it only looks soft. Compression tools never upscale for this reason.
• Saving photos as PNG. A PNG photo can be five times bigger than a good JPG with no visible benefit.

Does compressing remove location data?

Yes. Hidden photo data (EXIF), including GPS location, camera model and date, is removed from the compressed copy. That makes the file smaller and safer to share publicly. If you need to keep that data, keep the original as well.

Is it safe to compress private photos online?

With most websites, your photo is uploaded to someone else's server. This tool works differently: the compression happens inside your own browser, so the photo never leaves your phone or computer. That matters for ID documents, family photos and anything confidential.

Quick checklist

• Start from the original photo.
• Shrink the longest side to what the destination actually shows.
• Use quality 75–85.
• Choose WebP for the web, JPG for compatibility.
• Check the result at 100% zoom before deleting the original.

Ready? Open the image compressor. If your photos are from an iPhone, convert them first with HEIC to JPG, and if you need a specific width and height, try Resize Image.