Free Online Image Tools
Browse 10 free online image tools. Every tool runs entirely in your browser: no upload, no signup, no install.
All tools in this category (10)
Image Compressor
Compress JPG, PNG and WebP images locally in your browser.
Use nowImage Converter
Convert images between PNG, JPG, WebP, BMP and ICO.
Use nowImage Cropper
Crop images online with free or preset aspect ratios.
Use nowImage Resizer
Resize images by pixels or percentage, keep aspect ratio.
Use nowImage to Base64
Convert images to Base64 / Data URI for HTML and CSS.
Use nowImage Watermark
Add a custom text watermark to images online.
Use nowFavicon Generator
Create multi-size website icons from one image.
Use nowImage Rotate & Flip
Rotate by 90° steps or any angle, flip horizontally or vertically.
Use nowCompress Image to Target Size
Compress JPG, PNG and WebP images down to a target KB size. The tool resizes to your max edge first, then binary-searches the best JPEG quality, all locally in your browser.
Use nowID Photo Maker
Crop and align your picture to standard ID sizes, switch between white, blue and red backgrounds, then export a print-ready JPG or PNG, all locally.
Use nowAbout Image tools
Image tools cover compression, format conversion, cropping, resizing, rotation, watermarking and favicon generation. They drive the Canvas and codec stack built into your browser, so speed depends on your device. Compression and conversion render a live preview, and the size-versus-quality balance moves as you drag the slider.
Photos often carry location data, device details or sensitive content, and uploading one hands a copy to another server. Here the file stays on your device from selection to download, and the tools keep working offline once loaded. JPG, PNG and WebP are supported for both input and output.
How to choose the right Image
- Pick the operation by goal
Smaller file: compress. Different format: convert. Different dimensions: resize. Crop and rotate fix framing. Mixing operations costs quality and bytes at once.
- Judge compression by quality
Quality 70-85 is usually the balance point: above it the file barely shrinks, below it artifacts appear. Compare the preview with the original before committing.
- Mind transparency when converting
PNG to JPG flattens transparency onto a white background. If you need alpha, convert to WebP or stay with PNG; icons and screenshots deserve extra care.
- Test one image before batching
Run a representative image through first and confirm quality and size, then apply the same settings to the whole batch. Fixing one image beats redoing all of them.
Common image mistakes
- Format decides quality
Quality comes from the source and the settings. Saving a blurry photo as PNG does not sharpen it, and high-quality JPEG cannot recover crushed detail.
- Compression always ruins images
Lossy formats trade detail for size at a chosen quality; lossless formats shrink without touching pixels. The right format halves most images invisibly.
- Bigger pixels are sharper
At a fixed display size, extra pixels only add weight. Size for the use (1200 px wide suits most pages), then tune quality.