Free Image Converter
Convert between PNG, JPEG and WebP directly in your browser. Conversion costs no credits and needs no account - upload, pick a format, download.
Supported formats
You can upload JPEG, PNG, WebP and HEIC/HEIF, and export to PNG, JPEG or WebP.
HEIC support matters if you shoot on an iPhone: photos come off the device in Apple's HEIC container, which plenty of websites, CMSes and older desktop software still refuse to open. Converting to JPEG solves that.
Which format should you actually use
- JPEG - photographs, and anything headed for a platform that will recompress it anyway. Smallest files for photographic content, but no transparency and it loses a little quality on every re-save.
- PNG - logos, screenshots, line art, and anything needing transparency. Lossless, so text and hard edges stay crisp, at the cost of much larger photographic files.
- WebP - the best default for your own website. Typically 25-35% smaller than JPEG at comparable quality, supports transparency, and is supported by every current browser.
The common mistake is saving photographs as PNG. It is lossless, so it feels like the safe choice, but it can produce a file several times larger than a visually identical JPEG.
Transparency is handled for you
Converting an image with an alpha channel to JPEG would flatten the transparent area, usually to black or white. WoWPixel exports anything with transparency as PNG automatically so you do not lose it by accident.
If you want a JPEG from a transparent source, place the subject on a solid background first, then convert.
Format choice by destination
The right format depends less on the image than on where it is going.
- Your own website - WebP, almost always. Smaller pages load faster, and page speed is itself a ranking factor.
- Print - PNG, or a high-quality JPEG. Avoid anything that has been through several lossy re-saves.
- E-commerce listings - JPEG for photographs, PNG when the platform wants a transparent cut-out. Check the marketplace's own requirements, since several reject WebP on upload.
- Email and messaging - JPEG. Universally supported, and small enough to avoid attachment limits.
- Logos and icons - PNG, for lossless edges and transparency.
Lossy, lossless, and repeated saving
JPEG is lossy: it discards information to save space, and it does so again every time you re-save. Open a JPEG, make a small edit, save, repeat a few times, and the degradation becomes visible - particularly around text and hard edges.
PNG and lossless WebP do not have this problem, which is why they suit working files. A reasonable habit is to keep your master in a lossless format and export to JPEG or WebP only at the end, for whatever the image is actually for.
Converting an already-degraded JPEG to PNG will not restore anything. It only preserves the damage in a larger file.
Converting several files at once
The batch processor applies the same operation across multiple images and returns them as a single ZIP. That is the fast path for a product catalogue or a folder of iPhone photos that all need the same treatment.
Reducing file size
If your goal is a smaller file rather than a different format, the compress tool targets a file size directly while keeping the format. Converting a JPEG to WebP is usually the single biggest win for page weight on a website.