Processed locally in your browser — nothing is uploaded.
Image Converter
Quick answer
Pick JPG, PNG, WebP, or AVIF as your target and Pixora re-encodes the file right in this browser tab, with a quality slider and batch export for whole folders.
What the image converter does
The right format depends on what is in the picture, not personal preference. JPEG suits photographs and smooth colour gradients, since its lossy compression throws away detail the eye rarely notices. PNG is lossless and suits flat colour, line art, and text screenshots, since it never blurs a hard edge. WebP and AVIF are newer lossy-or-lossless formats built for the web: WebP lands 25 to 35 percent smaller than JPEG at equal quality, and AVIF goes further, often 50 percent smaller, at the cost of a slower encode.
Pick a file, choose the target format, and a quality slider appears for any lossy target (JPEG, WebP, AVIF). PNG has no quality slider since it is always lossless; Pixora handles its compression automatically with oxipng.
One thing worth a warning: converting an already-lossy file into another lossy format re-encodes artefacts that are already baked in. A JPEG saved at quality 60 and then converted to WebP at quality 90 still carries the blotchy blocks from the original pass, because that damage happened to the pixel data itself, not the file wrapper around it.
How to use it
Add your images
Drag one or many files onto the drop zone, or click to browse. Mixed formats in one batch are fine.
Choose the output format
Select JPG, PNG, WebP, or AVIF. The available options change depending on whether the source has transparency.
Set the quality
Drag the slider for lossy targets. 75 to 85 is the visual sweet spot for JPEG and WebP; below about 60 you start to see ringing near hard edges.
Download
Grab a single converted file directly, or download the whole batch as one ZIP.
Your images never leave your device
Every conversion runs on the canvas inside your own browser tab, and nothing is transmitted anywhere. That matters for a case that never makes a product demo: an event photographer converting a client shoot to WebP for a gallery site, hours before the client has signed off on which shots are usable.
- No file is ever uploaded to a server
- Works offline after the first visit
- No account, no watermark, no limits
Format and quality tips
Match the format to the content, not the trend
AVIF is the smallest file for a given quality, but it is also slow to encode and still has patchy support in older email clients and design tools. Use it for a modern website; use JPEG or PNG if the file needs to open reliably everywhere.
Batch mode assumes one format for everything
If a folder mixes photos with flat-colour graphics, run it twice, once at a photo-friendly setting and once as PNG for the graphics, rather than forcing one quality setting on both.
Frequently asked questions
Which image format should I convert to?
Convert photographs to JPEG or WebP, and convert screenshots, logos, or anything with transparency to PNG or WebP. AVIF is worth it only when the destination definitely supports it, since support is still incomplete outside modern browsers.
Does converting an image reduce its resolution?
No, changing format never changes pixel dimensions on its own. Resolution only drops if you separately resize the image, which is a different tool.
Can I convert a whole folder of images at once?
Yes, batch mode accepts many files in one drop and packages the results into a single ZIP. Mixed source formats in one batch are fine as long as you want the same output format for all of them.
Will converting my JPEG to PNG make it higher quality?
No. PNG will store the JPEG pixels exactly, without adding further loss, but it cannot restore detail the JPEG encoder already discarded. The file will usually get larger, not better.
What quality setting should I use for JPEG or WebP?
Start at 80. That is close to the point where file size keeps dropping fast but visible quality has barely moved; below roughly 60 you start to see blocky artefacts around sharp edges.
Does Pixora upload my photos to convert them?
No. The encoder runs inside your browser using WebAssembly, the same MozJPEG, oxipng, and libwebp codecs used by tools like Squoosh, and the file never leaves your device.
Further reading
- WebP vs JPG vs AVIFJPG is universal, WebP is smaller and works everywhere that matters, and AVIF is smaller still but slow to make. Here is how to choose without guessing.6 min read
- PNG vs JPG: Which Should You Use?The rule is short: photographs go to JPG, anything with sharp edges or transparency goes to PNG. This post explains why, so you never have to guess again.6 min read
- What Is HEIC, and How Do You Open It?HEIC is why an iPhone photo will not open on a friend Windows laptop. Here is what the format is, why Apple chose it, and how to turn it into something everything can read.6 min read