NiftyWebTools
Compress a PDF
Image tool
Batch resize images by width, percentage, or common web-friendly dimensions.
Processing mode: Private Runs in your browser
Free: up to 25 files, 25 MB each. With a pass: up to 200 files, 100 MB each.
Keep working
Compress Image
Make images smaller for websites, email, marketplaces, and forms.
Convert Image Files
Convert images to WebP, JPEG or PNG in your browser. Batch files, tune quality, keep transparency where supported. Files stay on your device.
Join Image Files
Combine multiple images vertically or horizontally into one downloadable image.
AVIF to JPG Converter
Convert AVIF to JPG free in your browser. Batch up to 50 images, choose the quality, download as a ZIP. Files stay on your device.
How to use it
Good for
Useful for websites, online stores, profile images, social uploads, and content teams.
Privacy
Files are processed by your browser. They never reach our servers.
Questions
Yes. Batch resizing is supported.
The tool preserves the original aspect ratio. If you set an exact width, the height is calculated to match. To resize to fixed dimensions without distortion, crop the image first.
Most blog and product images sit between 1200 and 1600 pixels wide. Hero banners may need 1920+, while thumbnails and avatars usually live below 800.
No. Resizing runs in your browser using the Canvas API, so your originals never leave your device — safe for client work, ecommerce assets, and personal photos.
Yes. Everything this tool does is free. On some tools, a Day or Project Pass raises the file-size and batch limits if you need more.