You have a folder of PNGs that need to be WebP for your website. Or a batch of WebPs that a client needs as JPEGs. Every online converter wants you to upload them one at a time, wait, download, repeat. NexConvert handles the whole folder at once — locally, in your browser, with no queue and no file size cap.
Your browser already knows how to decode and re-encode images through the Canvas API. NexConvert just gives you a proper interface for it.
JPG to WebP, PNG to JPG, WebP to PNG — any direction. Drop a mixed folder of formats and convert them all to one target format in a single operation. Adjust quality for JPG and WebP output with a slider.
Converting to PNG? Alpha channels are preserved exactly. You won't end up with a white rectangle where your transparent logo used to be. Converting from PNG to JPG? The background is filled cleanly instead of turning black.
Most free converters cap at 5MB or 20 files per day. NexConvert has no limits because there's no server involved — it's just your CPU doing the work. The only practical ceiling is your browser's available memory.
NexConvert is a Progressive Web App. Load it once, and it works without an internet connection going forward. Pin it to your dock or home screen and it behaves like a native app.
Runs in any modern browser on Mac, Windows, and Linux.
Open NexConvert