Compress Image Online — Free & Private

Compress Image — how it works

Compress JPG, PNG & WebP in your browser. Shrink to an exact target size (e.g. 100KB) with no quality guesswork. Files never leave your device.

Why FileZap is different

• Truly private. Unlike most online tools that upload your files to a server, FileZap processes everything inside your browser. Your files never leave your device.
• Instant. No upload/download round-trip and no processing queue — results appear the moment you drop a file.
• No catch. No sign-up, no email, no watermark, no daily limit.

FAQ

How do I compress an image to an exact size like 100KB?

Choose Target size mode and enter your limit. FileZap searches for the highest quality that stays under it, so the file is guaranteed to fit.

Will compression ruin the quality?

Target-size mode keeps the maximum quality that still meets your size limit, so quality loss is the smallest physically possible.

Are my images uploaded to a server?

No. Compression happens entirely in your browser. Nothing is uploaded.