Image Compressor

Privacy-focused image compression and format conversion tool running locally in your browser.

Drag & Drop Image Here

Supports PNG, JPEG, WEBP up to 50MB

Settings

80%
px
Original Size0 Bytes
Compressed Size0 Bytes
Savings0% saved

Continue With

Continue your workflow with these related next steps
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EXIF Stripper

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Image Upscaler

上传图片 ➔ 选择 2x 或 4x 无损放大与锐化降噪 ➔ 本地 Tile 切片超分渲染 ➔ 一键导出高清大图

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Pure Client-Side Local Memory Processing · Zero Data Upload

Usage Guide

  • Add one or more supported images and inspect their dimensions, format, and original size.
  • Choose the output format, quality, and optional resize settings, then preview the visual trade-off.
  • Download the compressed files and verify sharpness, transparency, color, and metadata requirements.

Security & Privacy Guarantee

  • Repeated lossy compression accumulates artifacts; keep the original when future editing is likely.
  • JPEG removes transparency, while browser support and output quality for WebP or other formats can vary.
  • Very large images and large batches may exceed device memory; process smaller groups on constrained devices.

Frequently Asked Questions

Q: Are images uploaded for compression?
A: No. Decoding, resizing, encoding, and export run in your browser. Normal site assets download, but selected images are not sent to a compression server.
Q: Which output format should I use?
A: Use JPEG for photos without transparency, PNG for lossless graphics and transparency, and WebP when smaller modern web assets are the priority.