Compress images online
Reduce JPG, PNG and WebP file size by up to 90% with little visible change. Drag the slider to compare before and after in real time.
Make images lighter.
Keep them sharp.
Compress, convert and resize right in your browser. Your photos never leave your device.
Image compressor · PNG to JPG · HEIC to JPG · WebP converter · Resize and crop
- Stays on your device
- Batch and ZIP
- Crop, rotate, watermark
- HEIC, WebP, JPEG, PNG
Free online image compressor and converter
Picnik is a free image compressor, converter and resizer that runs in your browser. Compress JPG, PNG and WebP images, convert PNG to JPG or HEIC to JPG, reduce image size to 200 KB or less, and resize or crop photos for websites, forms and social media. No sign-up, no watermark and no uploads.
Everything you need to compress, convert and edit images
Convert image formats
Convert PNG to JPG, JPG to PNG, WebP to JPG, HEIC to JPG and more, with a single tap.
Resize and crop photos
Resize by width, crop freely, or use ready sizes like 1:1, 4:5, 9:16 and 16:9 for Instagram, TikTok and passport photos.
Compress to a target size
Need an image under 100 KB, 200 KB or 500 KB for a form or website? Type the size and Picnik finds the right quality.
Batch compress and download
Add many images at once, use the same settings for all, and download them one by one or in a single ZIP.
Private by design
Your photos are processed in your browser and never uploaded. Location and camera details are removed from every image.
How to compress an image online
- Add your image. Drop it on the page, paste it, or tap to choose from your phone or computer.
- Pick your settings. Choose a preset, a format such as WebP or JPEG, and a quality level or target file size.
- Download. Compare the result with the original, then save your smaller image.
Frequently asked questions
Is Picnik really free?
Yes. There is no sign-up, no watermark and no limit on how many images you can compress or convert.
Are my photos uploaded to a server?
No. Everything happens inside your browser, so your images never leave your device. After your first visit you can also install Picnik as an app and use it offline.
How do I compress an image to 200 KB?
Add your image, type 200 in the box called Or aim for a file size, and download the result. Picnik lowers the quality just enough to reach your target size.
Which image formats are supported?
You can add JPG, PNG, WebP and iPhone HEIC photos, plus most other formats your browser can open. You can save as WebP, JPEG, PNG or AVIF, depending on your browser.
How do I convert PNG to JPG?
Add your PNG image, choose JPEG in the Format options, and download. To go the other way, choose PNG. For a smaller file, choose WebP.
Does compressing remove my location and camera details?
Yes. Every image Picnik saves is rebuilt without its EXIF data, so GPS location and camera information are removed.
Can I compress many images at once?
Yes. Add as many images as you like, apply the same settings to all of them, and download them all, or save everything in one ZIP file.