How do I compress a photo for email?

Set the maximum size to 1280 px and quality to 75 with JPEG output. A typical phone photo drops from 4–8 MB to 150–300 KB, well under any attachment limit.

Compress or resize: which reduces size more?

Resizing usually wins. Halving the dimensions cuts pixels by 75 %. Lowering quality from 95 to 75 cuts another 50–70 %. Use both for the smallest files.

Can I compress a PNG without losing transparency?

Yes. Choose WebP output, which keeps the alpha channel while compressing far better than PNG.

Which quality setting should I use?

80 is the sweet spot for photos: file size drops by 60–90 % compared with PNG and the difference is invisible at normal viewing sizes. Use 90–95 for print or archival copies, and 60–70 for thumbnails and previews.

Are my images uploaded to a server?

No. Decoding, resizing and encoding happen inside your browser using a background worker. The file is read from your device, converted locally, and the result is saved from your browser's memory. Nothing is transmitted.

Compress images on your device

Make photos small enough for email and fast web pages. Choose the quality and size; your files stay with you.

Drop images here or click to browse

PNG, JPEG, WebP, GIF, AVIF, HEIC where the browser can decode them

About this tool

Compressing an image means two things: lowering the quality setting so the encoder discards detail the eye cannot see, and reducing the pixel dimensions so there is less to store. Doing both turns a 6 MB phone photo into a 200 KB file that still looks sharp on any screen.

This tool does both in your browser. Set a maximum size, such as 1920 px for web or 1280 px for email attachments, and a quality around 75. The photo is decoded directly at the smaller size, encoded once, and offered for download. For the smallest result choose WebP; choose JPEG when the recipient's software may not support WebP.

Nothing is uploaded, so compressing a hundred vacation photos costs you nothing but a few seconds of CPU time, and no copy of them exists anywhere else.

How it works

Drop the photos you want to shrink.
Set a maximum size (1920 px for web, 1280 px for email) and quality around 75.
Pick JPEG for compatibility or WebP for the smallest files, then Save.

Looking for a different conversion? Try PNG to WebP, JPG to WebP, WebP to PNG, Compress image or DOCX to PDF.

Frequently asked questions

How do I compress a photo for email?: Set the maximum size to 1280 px and quality to 75 with JPEG output. A typical phone photo drops from 4–8 MB to 150–300 KB, well under any attachment limit.
Compress or resize: which reduces size more?: Resizing usually wins. Halving the dimensions cuts pixels by 75 %. Lowering quality from 95 to 75 cuts another 50–70 %. Use both for the smallest files.
Can I compress a PNG without losing transparency?: Yes. Choose WebP output, which keeps the alpha channel while compressing far better than PNG.
Which quality setting should I use?: 80 is the sweet spot for photos: file size drops by 60–90 % compared with PNG and the difference is invisible at normal viewing sizes. Use 90–95 for print or archival copies, and 60–70 for thumbnails and previews.
Are my images uploaded to a server?: No. Decoding, resizing and encoding happen inside your browser using a background worker. The file is read from your device, converted locally, and the result is saved from your browser's memory. Nothing is transmitted.