Format Converter

JPG, PNG, WebP — all in one place

Convert a batch of images to a chosen format with a quality slider, smart rename tokens, and a ZIP download. The originals are not touched.

✦ WebP · JPEG · PNG✦ Quality slider✦ Bulk + ZIP✦ No upload

Convert to

Quality 92%

92%

Max longest edge (px)

0 keeps the original size. Set this if you also want to downscale.

Rename pattern

Tokens: {name} original · {n} 1-based index · {i} 001-padded · {ext} output extension

Drop images here, or click to browseJPG · PNG · WebP · GIF · BMP — up to 60 MB each

No images yet — add some above to get started.

How it works

Three quick steps

Drop a batch. Each is checked by signature.

Pick the target format, set quality and a rename pattern.

Click Convert, see per-image before/after, then download a ZIP.

FAQ

Are my images uploaded?

No. Conversion happens entirely in your browser.

What about WebP in older browsers?

Encoding WebP is supported in all current Chromium/Firefox/Safari 16+ browsers. If your browser can't encode WebP, switch to JPEG or PNG.

Does the tool change image dimensions?

Only if you set a max longest edge. The original aspect ratio is always preserved.