How to compress, resize, convert, and crop images locally
JPEG/PNG/WebP quality, pixel dimensions, format conversion, and a crop rectangle — files never leave this browser tab.
Compress quality is not a resize
Image Compressor at /tools/image-compressor shrinks JPEG, PNG, or WebP with a quality control. Pixel dimensions stay the same unless you also resize. Lower quality reduces file size and can add artifacts. PNG compression here is not a guaranteed tiny palette PNG; treat the output as a preview you download locally. Nothing is uploaded to Toolora’s servers.
Resize, convert, crop
Image Resizer at /tools/image-resizer sets width and height with optional aspect lock so a 1920×1080 photo can become 800px wide without stretching. Image Converter at /tools/image-converter writes PNG, JPEG, or WebP from the canvas. Image Cropper at /tools/image-cropper uses a drag rectangle, then you download the cropped pixels. Order of operations matters: crop then resize for a thumbnail; convert last if you need JPEG for email.
Steps
1) Open the tool that matches the job (compress vs resize vs convert vs crop). 2) Choose a file from disk — it is read in the tab. 3) Adjust quality, size, format, or the crop box. 4) Download the result. 5) For a data URI instead of a file, use Image ↔ Base64 at /tools/image-base64. QR and barcode pages generate new graphics; they do not edit photos.
Worked example
A 4 MB phone JPEG: compress quality ~0.7 for a chat upload; resize to 1280 on the long edge for a blog; crop a square for an avatar; convert to WebP if the CMS wants it. A screenshot PNG may grow if you “compress” to JPEG poorly — compare file sizes on disk. EXIF rotation depends on the browser canvas; if a photo looks sideways, rotate in an editor first.
Limits
No batch folder upload. No CMYK print profiles. No magic upscaling. Very large images can exhaust tab memory. Related: /tools/image-base64 for embedding small icons in CSS. Color Converter does not sample a photo.
Privacy
Pixels stay on the device. Related: /tools/image-resizer, /tools/image-converter, /tools/image-cropper, /tools/image-base64. Close the tab after processing ID photos or confidential slides.