How to compress WebP files
Upload your WebP file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
Compress the file
NexMedia re-encodes your WebP file on its own servers at the quality you choose. Processing time depends on the file size and how busy the queue is.
Download the compressed file
When the compression finishes, the download appears on this page. Your compressed file is kept for 2 hours, then deleted.
About WebP
the modern web image format, in both lossy and lossless flavours
WebP is the image format the web moved to: it compresses photographs lossily like JPEG, graphics losslessly like PNG, and does both in fewer bytes, with alpha and animation support built in.
WebP files are rarely wasteful, but they grow with resolution like any raster: a 6000-pixel panorama at a high quality factor still measures in the megabytes.
What compressing WebP does
Compressing a WebP lowers its quality target or moves it to AVIF or JPEG XL, which beat WebP's own encoder at the same visual quality.
A 2 MB WebP photo re-encoded to AVIF at matched quality commonly lands 20–30% smaller; a lower WebP quality target gains similar ground with no format change.
Settings you can change
Before you compress WebP, you can adjust: Width, Height, Scale fit, Crop position, Never enlarge, Quality, Lossless, Progressive, Remove metadata, Auto-orient from EXIF, Rotate, and Background.
Limits
Guests can compress files up to 100 megabytes and run 5 conversions per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your compressed WebP file is kept for 2 hours, then deleted.
Compressing WebP: questions and answers
Will compressing WebP reduce quality?
A second lossy generation is invisible at a careful quality target; if the WebP was lossless, re-encoding it losslessly to JPEG XL keeps every pixel while shrinking the file.
Can WebP files be compressed without any loss?
Yes — WebP has a genuine lossless mode, and JPEG XL's lossless mode usually compresses the same image tighter than WebP lossless does.
Which settings can I change when compressing WebP?
You can adjust: Width, Height, Scale fit, Crop position, Never enlarge, Quality, Lossless, Progressive, Remove metadata, Auto-orient from EXIF, Rotate, and Background. the quality slider sets the trade directly, and switching the target format to AVIF or JPEG XL buys extra savings at the same slider position
How much smaller will my WebP file get?
Expect a further 15–30% from a tuned re-encode, and more when the original was written at a generous quality factor.
How large a WebP file can I compress for free?
Guests can compress files up to 100 megabytes and run 5 conversions per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes. Your compressed file is kept for 2 hours, then deleted.