Drop in your PNG files and get WebP files back. Everything runs in your browser: nothing is uploaded, there is no file size limit and you do not need an account.
Accepts: images (PNG, JPG, WebP, GIF, BMP, SVG, ICO, AVIF, HEIC), PDF, Word (.docx), Markdown, HTML, TXT, spreadsheets (XLSX, XLS, ODS, CSV, TSV), JSON, XML, YAML, and video (MP4, MOV, WebM, MKV) or audio. Video can become GIF (first 15 seconds), WebM or MP4 (recorded in real time, so it takes as long as the video), a still image, or just the audio. Mixed batches are fine.
WebP files are usually much smaller than PNG, which makes websites faster and saves storage. Transparency is kept.
PNG is a lossless image format that keeps transparency and sharp edges, but files are large. WebP is a modern image format with much smaller files than PNG or JPG, but some older apps, editors and upload forms still reject it.
Most online converters upload your files to a server. This one does the work inside your browser, so your PNG files stay on your computer or phone. That also means no waiting for uploads and no cap on file size.
Saving WebP needs a browser that can encode it (Chrome, Edge and Firefox can); Safari may refuse.
Converted images are re-encoded from scratch, so metadata such as camera details and GPS location is not carried over. JPG and WebP output use quality 92.
No. The conversion runs inside your browser on your own device. Your files are not sent to us or anyone else. Besides loading this page and, for some formats, a small helper library, nothing is downloaded or uploaded while you convert, and you can confirm that in your browser's developer tools (Network tab).
We do not set one. The only limit is your device's memory, so for very large batches (thousands of files, or very big videos) work in several groups.
No. There is no account, no install and no watermark. Open the page, add your files and download the results.
Drag them all in together or pick them in the file chooser. They are converted one after another, and Download All saves the results as one ZIP (a single result downloads directly).
Saving WebP needs a browser that can encode it (Chrome, Edge and Firefox can); Safari may refuse. Converted images are re-encoded from scratch, so metadata such as camera details and GPS location is not carried over. JPG and WebP output use quality 92.