Compress images for WhatsApp

WhatsApp already crushes the photos you send — so compress them yourself first and stay in control of the quality. Set a target size like 100 KB, watch the before/after preview, and download a photo that sends instantly and still looks good, all without uploading anything.

Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.

Beat WhatsApp’s own compression

When you send a photo the normal way, WhatsApp re-encodes it on its servers with settings you never see, which is why forwarded images slowly turn mushy. Compressing to a sensible target yourself — around 100 KB is plenty for a phone screen — means the app has far less to strip away, so what your recipient opens is much closer to what you approved. The before/after slider here shows you the trade-off before you commit.

Small enough to send on any connection

A 100 KB image sends in a blink even on a weak signal, and it barely touches a data cap when you are sharing dozens of them. Point the compressor at a target size and it does the math for you, nudging quality until the file fits. Everything runs on your device, so the photos — often personal ones headed to family and friends — are never uploaded to a compression service on the way.

Frequently asked questions

Does my image get uploaded?
No. All compression happens locally in your browser using the Canvas API. Your files never leave your device and are never sent to a server.
Does compression reduce quality?
Lossy formats (JPG, WebP, AVIF) trade a little quality for much smaller files, and the quality slider lets you find the right balance. PNG is lossless, so it stays pixel-perfect.
Which formats are supported?
You can compress JPG, PNG and WebP. You can also convert a PNG photo to WebP during compression for much smaller files.
Can I compress to a specific file size?
Yes. Switch to “Target size” mode and PixelVault searches for the highest quality that fits under your chosen KB limit.
Can I compress multiple images at once?
Yes. Drop in as many images as you like and download them individually or together as a single ZIP file.