Convert a specific format
Every converter on this site runs the same way — in your browser, with nothing uploaded.
Convert images to WebP without uploading them anywhere
Drop your files in, pick a target size, get them back as WebP. The conversion runs inside your browser — your images never leave your computer.
- Nothing is uploaded
- No sign-up, no limits
- Original dimensions kept
Drag your images here
JPG, PNG, HEIC, GIF, BMP or AVIF — as many as you like
KB — leave empty for best quality
px — empty keeps the original size
A 4000 px photo cannot reach 130 KB on quality alone
Converting a whole batch by hand?
The WordPress plugin does this in the background — every image, as you upload it,
without dragging anything anywhere. See how it works
These look like files from a WordPress media library.
The plugin converts your entire library in place, keeps every thumbnail size,
and updates the attachments for you. See how it works
A file called
IMG_4837.jpg tells Google nothing.
Filenames, titles and alt text are what decide whether an image shows up in
Google Images. Compression makes the page faster — naming makes it findable.
See how the plugin handles it
The same thing, for your whole WordPress library
This page is fine for a handful of images. If you run a shop or a portfolio, you have hundreds — and every one of them needs a filename, a title and alt text before it can rank in Google Images.
- Compression on upload — every new image becomes WebP at your target size, automatically
- Titles, alt text and descriptions written by AI — from your own keywords, not generic captions
- Any language you sell in — the same image described for each market you target
- A library audit — see exactly how many images are missing alt text right now
Questions
Are my images really not uploaded?
Correct. The conversion uses your browser's own image engine, so the file is read from your disk into the tab and never sent over the network. You can confirm it yourself: open your browser's network panel and convert a file — no request is made. It also means the page works offline once loaded.
Why WebP and not JPG or PNG?
WebP produces files roughly 25–35% smaller than JPG at the same visible quality, and far smaller than PNG for photographs. Every browser in current use supports it. Smaller images mean faster pages, and page speed is one of the signals Google measures directly.
How does the target size work?
The converter encodes your image, checks the result against your target, and lowers the quality step by step until it fits — stopping at a floor where further compression would be visible. If a file cannot reach the target without damage, you get the closest acceptable version and a note saying so, rather than a ruined image.
Will it resize my images?
Not unless you ask. Leave "Max width" empty and the pixel dimensions stay exactly as they were — only the file weight changes. Set a value and images wider than that are scaled down proportionally.
Is there a limit on file size or how many I can convert?
No limit from us, since we are not paying for the processing — your computer is. The practical ceiling is around 16 megapixels per image, which is where browsers stop being reliable. Anything larger gets a clear message rather than a silent failure.
Does converting to WebP help SEO?
Indirectly, and only halfway. Smaller files make pages load faster, which helps rankings. But an image also needs a descriptive filename, a title and alt text before a search engine understands what it shows — and no converter can write those for you. That is the part the WordPress plugin handles.