Image converter: PNG, JPG, WebP, AVIF
Turn PNG into JPG, JPG into WebP or AVIF, make an ICO icon from a logo — up to 30 files at once. You can choose the quality and shrink pictures by the long side.
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How it works
- Choose pictures or drop them into the frame below.
- Choose the format, quality and size; for ICO — the icon sizes.
- Press “Convert” and download the files one by one or all at once as a ZIP.
Formats and limits
| What | How |
|---|---|
| Opens | PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, ICO, HEIC, TGA, QOI, PSD |
| Saves | JPG, PNG, WebP, AVIF, GIF, ICO (16–256 px) |
| At once | up to 30 files of 50 MB each |
| Picture | up to 50 MP and 16,384 px per side |
| Size | as is or up to 3,840, 2,560, 1,920, 1,280, 640 px on the long side |
Your file stays with you
The pictures are not uploaded to lac.pics or anywhere else: your browser processes them, on your device. No sign-up needed. You need an account only to save the result to lacuna and send a link: then the files go to “Uploads” in your account.
Questions
Are the pictures uploaded to a server?
No. The pictures are processed in this tab, on your device — by the browser and a WebAssembly engine that also runs locally. Files reach lacuna only if you press “Save to lacuna” and sign in.
How do I make a picture lighter?
Choose WebP or AVIF and a quality below 90, and in “Size” a limit on the long side. Each file’s new size is shown in the list, next to the old one.
Why can’t I choose AVIF?
Not every browser can encode AVIF. If the option is off, open the page in Chrome or Edge — or choose WebP.
How do I make an icon for a website or a program?
Choose ICO and tick the sizes you need, from 16–256 px: all of them go into one .ico file.
More tools
- Compress imageSmaller PNG, JPG, WebP and AVIF — lossless or with no visible difference.
- HEIC to JPGiPhone photos to JPG, PNG or WebP, in batches.
- Video to GIFA GIF or animated WebP from a video or a part of it.