QUANTIZE WebP Ready
Files 0 Saved 0 B Engine gd

WebP Converter JPG 路 JPEG 路 PNG 路 GIF 路 BMP 路 WEBP 路 AVIF

Drop images here
Up to 5 files · 25MB each
Advanced settings Compress for website images
Resize output
Every option scales down only. A target larger than the source is left alone — enlarging adds bytes without adding detail.
Lossless
Pixel-for-pixel identical to the source. Files come out considerably larger than lossy WebP, so this is for artwork and screenshots rather than photographs.
Image quality
Auto — 60 to 82 by file size
Small Sharp
In auto, quality tracks the source: 60 at 5MB and above, 68 from 3MB, 75 from 1MB, 82 below that. Bigger files compress harder because dimensions are left untouched and quality is the only lever.
Compression speed
Unavailable: GD does not expose the encoder's effort setting.
Auto orient
A phone records its rotation in a tag rather than in the pixels, and that tag does not survive the re-encode. Leave this on or portrait photos come back on their side.
Never enlarge
Some files are already as small as they are going to get, and re-encoding them only adds bytes. With this on you get whichever file is smaller, and the row says which one you got. Resized images are always converted, since the original no longer has the dimensions you asked for.
Strip metadata
Smaller files, and no camera model or location travelling with the image. On this server metadata is always removed — the gd encoder cannot write it back.

How it works

01

Pick a mode

Every mode is a full set of settings, not a shortcut past them. Choosing one fills the advanced panel so you can see exactly what it does.

02

Drop your images

Each file is encoded on its own, so one unreadable image marks its own row and the rest of the batch still comes back.

03

Download

Take them one at a time or as a single archive. Adjust the settings and re-run the same files as many times as you like.

What you should know

Nothing is stored. There is no account and no database. A converted file lives in a directory named after a random token and is reachable only through a signed link that expires with it.

WebP is smaller than JPEG and PNG at the same quality — typically 25–35% smaller than JPEG and far more than that against PNG photographs. It supports transparency, which JPEG does not, and every current browser reads it.

Animation is not preserved. An animated GIF is converted using its first frame.

Re-encoding an image that was already well optimised can make it larger. When that happens the row says so rather than reporting a saving of zero.

Frequently asked questions

Which formats can I convert? JPG, JPEG, PNG, GIF, BMP, WEBP, AVIF. Each batch takes up to 5 files of 25MB or less each.

Which mode should I pick? Use Compress for website images for photos that will be served on a page: quality adapts to the file size, and the dimensions stay as they are. Use Maximum compression when file size matters more than fine detail, such as thumbnails or previews. Use High quality when the image will be viewed large or printed, and Lossless for artwork, diagrams and screenshots where every pixel has to match the source.

Does it resize my images? Only if you ask it to. Resizing is set in the advanced settings, and it only ever scales images down. A target larger than the source is left alone.

How long are my converted files kept? Up to 15 minutes after conversion. Download them before the links expire. After that the files are deleted from the server.

Do I need to keep the originals? Yes. Lossy WebP cannot be converted back to the original file, so keep your source images if you may need another size or format later.