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or click to browse · add as many as you like · JPG · PNG · WebP · AVIF · GIF · BMP · HEIC
Converts on your device — nothing is uploadedBatch Convert PNG to WebP — Free, Unlimited, In Your Browser
Convert any number of PNG files to WebP in a single pass. The output format is pre-selected, so you drop your files in and press Convert. Everything runs inside your browser — nothing is uploaded, nothing is stored, and there is no cap on how many files you can process. Free, no sign-up, no watermark.
Why Convert PNG to WebP?
This is the conversion to use when you need smaller files and transparency. WebP keeps the alpha channel that PNG has, while being far smaller — often 50% or more below the PNG for the same graphic. Ideal for logos, icons and UI assets across a whole site.
Common uses: logo and icon sets, UI sprite folders, transparent product shots, app assets, website graphics.
How to Batch Convert PNG to WebP
- Add your files — drag and drop the whole selection, click to browse, or paste. Add as many as you like.
- Output is already WebP — adjust the quality if you want, or switch format at any time.
- Convert — a progress bar tracks the batch, and each row shows its new size and savings.
- Download — save files one by one, or press Download all for a single ZIP.
No File Limit, and Nothing Uploaded
Most online bulk converters cap free users at 10, 20 or 50 files, because each image has to travel to their servers and back — and several keep your files on those servers for an hour or more before deleting them. This tool converts on your own machine, so there is no artificial cap and no upload at all. That is faster, and it means personal photos and client work stay yours.
Is It Safe and Private?
Yes — every file is decoded and re-encoded locally in your browser. Your images are never uploaded, never copied to a remote server, and never stored after you close the tab.
Frequently Asked Questions
How do I batch convert PNG to WebP?
Drag and drop all your PNG files onto the upload area - the output format is already set to WebP. Press Convert, then download each file or press Download all to get one ZIP with everything. It all runs in your browser.
How many PNG files can I convert at once?
There is no fixed limit. Conversion happens on your own device, so the only constraint is your computer's memory - batches of 20 to 50 are comfortable on most machines, and a desktop handles far more. Many competing tools cap free users at 10, 20 or 50 files.
Is transparency preserved?
Yes. WebP supports a full alpha channel just like PNG, so transparent backgrounds survive the conversion intact - unlike converting to JPG, which fills transparency with white.
How much smaller is WebP than PNG?
For graphics with flat colour and transparency, WebP is commonly 50-80% smaller than the equivalent PNG. Photographic PNGs shrink even more dramatically.
Are my files uploaded to a server?
No. Every image is converted entirely inside your browser, so your files never leave your device. That is faster than uploading and genuinely private.
Is it free?
Completely free - no sign-up, no watermark and no file-count limit.