Image Tools

Image Compressor

Drop a JPG, PNG, or WebP and get a smaller file back in seconds. The quality slider lets you find the sweet spot — most images look identical at 80%. Nothing leaves your browser.

Input

Drop an image here

or click to browse — JPG, PNG, WebP

Settings

Output Format

Quality80%

Smaller fileBetter quality

How to compress an image online

Three steps. The quality slider is the only decision you need to make.

01
Drop your image
Drag a JPG, PNG, or WebP onto the tool or click to browse. The file stays on your device — the Canvas API handles everything locally, nothing is sent anywhere.
02
Move the quality slider
Start at 80%. That's where most images look identical to the original but are 40–70% smaller. Go lower if you need a smaller file and can accept slight softness in gradients or fine detail.
03
Check the size difference, then download
The before/after sizes show exactly how much you saved. If the reduction isn't enough, drop the quality a bit more. When you're happy, hit Download.

Why people compress images

Usually one of these six reasons.

Slow website? Images are usually why

A single uncompressed hero image can be 3–5 MB. Compress it to 300 KB and your page loads in a fraction of the time. Google's Core Web Vitals score improves too.

Email attachments that actually open

Most email providers cap attachments at 10–25 MB. A batch of phone photos can hit that fast. Compress before attaching and recipients on slow connections will thank you.

Social media double-compression

Instagram, Twitter, and LinkedIn recompress every image you upload. If you upload an already-compressed image, you control the first pass. Upload uncompressed and the platform does it badly.

WordPress and Shopify upload limits

Both platforms have default upload size limits (2 MB for WordPress, varies for Shopify). Compress images before uploading and you'll never hit the limit or need a plugin to raise it.

Archiving photos without filling a drive

A folder of 500 holiday photos at 5 MB each is 2.5 GB. Compress to 80% quality and you're looking at 700 MB–1 GB with no visible difference when viewing on screen.

App and web assets

Every KB in a bundled asset is downloaded by every user. Compress images before adding them to a React app, Flutter project, or static site — it adds up fast.

Frequently asked questions

Free, no account, no limits.

No. The browser's Canvas API handles compression locally. Your image never leaves your device — not even temporarily.

JPG and WebP at 80% quality typically shrink 40–70% with no visible difference. PNG uses lossless compression so savings are smaller — usually 10–30%. The actual reduction depends on the image content.

At 80%, almost never. At 60%, you might notice slight softness in areas with fine detail, gradients, or text. At 40%, it becomes obvious. The before/after comparison in the tool makes it easy to judge.

JPG, PNG, and WebP as input. The output format matches the input — a PNG in, a PNG out.

One at a time. If you need batch compression, compress each image separately — it takes about 10 seconds per image.

Yes, on any modern phone or tablet browser.

Other image tools

Image Resizer

Resize to exact pixel dimensions or percentage.

Image Converter

Convert between JPG, PNG, WebP, and AVIF.

Image Cropper

Crop to exact dimensions or preset aspect ratios.

SVG Optimizer

Reduce SVG file size without changing appearance.

Report an Issue

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How to compress an image online

Three steps. The quality slider is the only decision you need to make.

Drop your image

Drag a JPG, PNG, or WebP onto the tool or click to browse. The file stays on your device — the Canvas API handles everything locally, nothing is sent anywhere.

Move the quality slider

Start at 80%. That's where most images look identical to the original but are 40–70% smaller. Go lower if you need a smaller file and can accept slight softness in gradients or fine detail.

Check the size difference, then download

The before/after sizes show exactly how much you saved. If the reduction isn't enough, drop the quality a bit more. When you're happy, hit Download.

Why people compress images

Usually one of these six reasons.

Slow website? Images are usually why

A single uncompressed hero image can be 3–5 MB. Compress it to 300 KB and your page loads in a fraction of the time. Google's Core Web Vitals score improves too.

Email attachments that actually open

Most email providers cap attachments at 10–25 MB. A batch of phone photos can hit that fast. Compress before attaching and recipients on slow connections will thank you.

Social media double-compression

Instagram, Twitter, and LinkedIn recompress every image you upload. If you upload an already-compressed image, you control the first pass. Upload uncompressed and the platform does it badly.

WordPress and Shopify upload limits

Both platforms have default upload size limits (2 MB for WordPress, varies for Shopify). Compress images before uploading and you'll never hit the limit or need a plugin to raise it.

Archiving photos without filling a drive

A folder of 500 holiday photos at 5 MB each is 2.5 GB. Compress to 80% quality and you're looking at 700 MB–1 GB with no visible difference when viewing on screen.

App and web assets

Every KB in a bundled asset is downloaded by every user. Compress images before adding them to a React app, Flutter project, or static site — it adds up fast.

Frequently asked questions

Free, no account, no limits.

No. The browser's Canvas API handles compression locally. Your image never leaves your device — not even temporarily.

JPG, PNG, and WebP as input. The output format matches the input — a PNG in, a PNG out.

One at a time. If you need batch compression, compress each image separately — it takes about 10 seconds per image.

Yes, on any modern phone or tablet browser.