Boltly Tools
by ZeroClick AI
Everything runs on your device. Nothing is uploaded.

Compress images without losing quality

Drop your files hereor click to browse · JPG, PNG, WebP, AVIF, GIF
Options

Shrink photos and screenshots for email, websites and forms. JPG and WebP are re-encoded at the quality you choose, and PNGs get real colour reduction (like TinyPNG). If a file cannot get smaller, Boltly keeps your original.

How to compress images without losing quality

  1. Drop images into the box above (JPG, PNG, WebP, AVIF, GIF).
  2. Pick a quality, or under Options choose a maximum size or a target such as "Under 100 KB".
  3. Press Compress, compare before and after, and download.

Private by design

Boltly runs entirely in your browser. Your files are processed on your own computer and are never uploaded, so it is safe for IDs, contracts and family photos, and it keeps working offline once loaded.

Questions

How much smaller will my images get?

Typically 50-80% for photos and screenshots, depending on the original and the quality you pick.

Can I compress to a specific size like 100 KB?

Yes. Under Options choose a target file size; Boltly finds the best quality that fits and shrinks the picture only if needed.

Is there a limit?

Free handles 10 images per batch; clear the list and run the next batch. Pro removes the limit.

Are my images uploaded?

No. Compression runs in your browser; nothing is sent to a server.

Related tools

Convert images to WebP, JPG or PNGResize images in bulkRemove the background from any photo

All Boltly tools

Prefer a toolbar button? Get the Boltly Tools Chrome extension.