Resize and compress images and PDFs.
Make images and PDFs smaller in seconds. Drop, choose, download: processed on our own server, never stored.
- No account needed
- Never stored
- Images & PDFs
Click a file name to rename it. Use Resize / crop to give one image its own size, crop or format.
Tap an image to rename it, resize or crop it, or download it.
How it works
Three steps to resize, optimize or convert any number of images.
Upload images
Drop, paste or pick any number of JPG, PNG, WEBP, GIF, TIFF, AVIF, HEIC or SVG files.
Choose the settings
Pick a size, format and quality. Save them as a profile so they are ready next time.
Download
Every image is processed on the server, in memory. Download them one by one or all at once as a ZIP.
Features
Powered by libvips, the same engine large photo sites use. Nothing is stored, nothing goes to third parties. The demos below are live: try them.
Resize
Set a width, a height, a percentage or a box to fit in. Give one side and the other follows the aspect ratio. "Exact" forces a size and crops the rest with smart cropping.
Need the same size for a whole batch? Drop them all at once; the settings apply to every image.
Try it: change the width on the right.
Optimize
Choose a quality from 1 to 100, or set a maximum file size in KB and let the tool find the highest quality that fits. Metadata such as GPS location is stripped by default.
Lossless mode for logos and screenshots, mozjpeg for JPG, and fine control over chroma subsampling, effort and sharpening under Advanced.
Try it: drag the line and move the quality slider.
Convert
Turn anything into JPG, PNG, WEBP or AVIF, or keep the original format. The format you pick stays selected for every image you add, no surprises.
WEBP is typically 25–35% smaller than JPG at the same quality and works everywhere; AVIF is smaller still for modern sites.
Try it: pick a format and watch the file size.
Crop
Open any image from the list and drag a crop box over it, free or locked to a ratio. Social presets for Instagram, Facebook, X, LinkedIn and YouTube set both the crop and the exact output size.
The crop only applies to that one image; everything else keeps following your global settings.
Try it: drag the box or its corners, or pick a preset.
Frequently asked questions
Is verklein.nu free?
Yes. You need no account and there is no watermark. Fair-use limits per minute and per day keep the service fast for everyone.
Are my files stored?
No. Your files are processed in memory on our own server and deleted as soon as the result has been sent back. Your recent results are kept only in your own browser, so they survive a reload, until you clear them.
Which file types are supported?
You can upload JPG, PNG, WEBP, GIF (also animated), TIFF, AVIF, HEIC (iPhone photos), SVG and PDF. Images are saved as JPG, PNG, WEBP or AVIF, or in their original format. With “Original” a HEIC photo becomes a JPG, because browsers and most websites cannot show HEIC.
How do I make an image smaller than a set number of KB?
Open Advanced in the settings and enter a maximum file size in KB. The quality is lowered step by step until the image fits: handy for upload limits.
Can I make a PDF smaller?
Yes. Choose Small (72 dpi), Medium (150 dpi) or High (300 dpi) for the images in the PDF; text stays real, selectable text. You can also make a PDF greyscale, save its pages as images, reorder, rotate or delete pages, and merge PDFs.
Is the GPS location removed from my photos?
Yes. Metadata is removed by default. With Keep basic metadata on, only the colour profile and basic camera details (camera, lens, date, artist, copyright) are kept; the GPS location is always removed.
verklein.nu in Chrome
Resize and compress straight from your browser: open the side panel, or right-click any image on the web. Free, no account.