Image Compressor — Free & Instant

Q: Is it safe to compress my images here?

Yes. All compression happens locally in the browser using the Canvas API — images are never uploaded to a server, so they stay fully private.

Q: Is there a file size or file count limit?

There's no fixed limit — any number of images can be compressed in one batch. Very large batches simply take a bit longer since everything runs on the user's own device.

Q: Can I compress multiple images at once?

Yes, batch compression is supported — several images can be selected or dragged in together, compressed in one click, then downloaded all at once.

Shrink JPG and PNG file sizes without a big drop in quality. Works entirely in your browser. No upload to any server. 100% free, no sign-up required.

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What this tool does: Re-encodes your images at a quality level you choose. Photos (JPG) typically shrink the most. PNG files are lossless by design — for real size reduction on PNGs, this tool can convert them to JPG, or you can resize to a smaller dimension.

✓ No upload to server ✓ JPG & PNG supported ✓ Batch compression ✓ Adjustable quality ✓ 100% free

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Drop JPG or PNG files here

or click to browse your device — batch compression supported

Select Images

Compression Settings

Quality 80%

Output

Max Width

Compressing...

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Compression Complete!

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100% Private

All compression happens in your browser using the Canvas API. Files are never uploaded anywhere.

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Adjustable Quality

Fine-tune the quality slider to balance file size against visual quality for your use case.

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Batch Compress

Compress dozens of images at once and download them all with a single click.

How to Compress Images Online for Free

Smaller image files load faster on websites, attach more easily to emails, and take up less storage space. This free image compressor reduces JPG and PNG file sizes directly in your browser — instantly, privately, and without any sign-up.

How to Use This Tool

Click "Select Images" or drag and drop your JPG or PNG files into the upload box
Adjust the quality slider — 70–85% is usually the sweet spot for photos
Optionally set a max width to also shrink large images, and choose an output format
Click "Compress Images" — compression happens instantly in your browser
Click "Download All" to save your compressed files

Why Doesn't My PNG Get Much Smaller?

PNG is a lossless format, meaning quality settings don't reduce its file size the way they do for JPG. If your PNG doesn't need transparency, converting it to JPG in the output setting will typically shrink it significantly. If you need to keep transparency, reducing the max width is the most effective way to shrink a PNG.

What Quality Setting Should I Use?

For most web use, 70–85% quality gives a strong balance of small file size and good visual quality. Go higher (90%+) for images where fine detail matters, like product photography. Go lower (40–60%) for thumbnails or background images where file size matters more than sharpness.

Image Compressor — Common Uses

Shrink photos before uploading to a website to improve page speed
Reduce image size to fit email attachment limits
Prepare smaller images for faster loading on mobile devices
Save storage space when archiving large photo collections
Compress screenshots before sharing them in a document or chat

Is this image compressor really free? +

Yes, it's completely free with no limits on how many images you compress. There's no signup, subscription, or hidden fee.

Is it safe to compress my images here? +

Yes. All compression happens locally in your browser using the Canvas API — your images are never uploaded to a server, so they stay fully private.

Is there a file size or file count limit? +

There's no fixed limit — you can compress as many images as you like in one batch. Very large batches simply take a bit longer since everything runs on your own device.

Will compression noticeably reduce quality? +

At 70–85% quality, most photos look virtually identical to the original while shrinking significantly. Lower settings trade more visible quality for a smaller file size.

What file formats are supported? +

This tool accepts JPG and PNG images. PNGs can optionally be converted to JPG during compression for a much smaller file size.

Does this work on my phone or tablet? +

Yes, the compressor works in any modern mobile or desktop browser. There's no app to install.

Can I compress multiple images at once? +

Yes, batch compression is supported — select or drag in several images together, compress them all in one click, then download them all at once.

Does this tool work offline? +

Once the page has loaded, the actual compression runs locally in your browser. An internet connection is still needed to load the page itself first.