WebP provides superior lossless and lossy compression for images on the web, developed by Google.
Common Uses
Optimizing website images for faster loading
Reducing bandwidth usage for web media
Creating animated images with better compression than GIF
WebP Conversion FAQ
What is a WebP file?
+
WebP is a lossy raster image format. The encoder discards visual information the human eye is less sensitive to in exchange for dramatically smaller file sizes than equivalent lossless formats. Recompressing a WebP repeatedly causes cumulative quality loss, so always edit from a lossless master where possible.
Does re-saving a WebP make it worse every time?
+
Yes, and that is the one thing worth knowing about the format. Each save re-runs the lossy encoder over an image that has already been through it, so artefacts compound — visible as blocking around text and haloes on hard edges after a handful of generations. Edit from a lossless master and export to WebP once, at the end, rather than repeatedly opening and re-saving the same file. WebP offers both lossy and lossless modes, with alpha transparency and animation available in either.
Why is so much web content delivered as WebP?
+
Because it was designed for exactly that job: small files, fast start, no plugin and no licence to worry about. That makes it excellent at delivery and unremarkable at everything else — editing tools, phone galleries and older devices frequently ignore it. Converting to a general-purpose format is what makes downloaded content usable off the web. WebP is typically 25-35% smaller than an equivalent JPG and far smaller than an animated GIF, with universal browser support since 2020.
Is WebP too new to be widely supported?
+
Less so every year, but the gap is real. Software support arrived quickly; hardware support only comes with new devices, and the phone, television or player in front of you may simply predate it. Where it is supported it is measurably better than the format it replaces, which is why it is worth converting into for delivery and worth converting out of for compatibility.
Is WebP tied to Google?
+
It came from Google and is published openly, with a specification anyone can implement and no licence fee attached — which is exactly why browsers adopted it so quickly. Using it does not involve any Google service. Support outside the browser is the real limit: plenty of desktop tools, phone galleries and televisions still do not read it. WebP is Google’s 2010 image format, built from the VP8 keyframe encoder and intended to replace JPG, PNG and GIF at once.
Can I use WebP directly on a web page?
+
Yes — every current browser renders it natively, so it needs no fallback copy and no conversion at publish time. The remaining question is weight rather than support: the same picture in a modern web format is frequently a third of the size at the same visible quality, which is worth doing on anything that appears above the fold.
Can I just rename the extension instead of converting WebP?
+
Almost never, and it is worth understanding why: the extension is a label, while the bytes inside are structured for one specific format. Renaming produces a file whose name promises something its contents do not deliver, and whatever opens it either refuses the file or misreads it. The one narrow exception is two formats that are genuinely the same container under different names — and even then a proper rewrap is safer than a rename.
When should I convert WebP to another format?
+
Convert WebP to PNG, WebP or TIFF when you need an image with no further lossy compression — for archival, for editing, or when the target medium (print, banner ad, product photo) demands maximum fidelity. WebP is still second-class outside the browser — print workflows, older Office builds and some phone galleries do not accept it.
Will converting WebP reduce image quality?
+
When you convert WebP to another lossless format the pixels are preserved exactly. When you convert WebP to a lossy format such as JPG the encoder makes quality-vs-size trade-offs you control via the output quality setting.
Does MKV.to keep my WebP files private?
+
Your WebP files are processed over HTTPS, never read by humans, and deleted from our servers automatically after conversion. No watermarks, no email signup, no resale of image data.
