Image Compressor
Make photos and graphics smaller by re-encoding them as JPG or WebP, with a quality slider and optional downscaling.
All 20 tools
Every tool on this site works in your web browser. Pick a tool below or jump to a category.
Image Tools
Image Resizer
Change the width and height of an image in pixels or by percentage, with high-quality downscaling.
Image Converter
Change the format of one or many images to JPG, PNG or WebP, with control over quality and transparency.
Image Cropper
Cut out part of an image with a draggable selection, aspect ratio presets and exact pixel inputs.
Rotate & Flip Image
Turn a picture by 90° or 180° and mirror it horizontally or vertically, with a live preview.
PDF Tools
Merge PDF
Combine several PDF files into one document, in the order you choose, with optional page ranges per file.
Split PDF
Extract pages into a new PDF or split a document into several files by page, range or fixed page count.
Reorder PDF Pages
Change the page order of a PDF with drag and drop, delete unwanted pages and save the result.
Rotate PDF
Turn individual pages or the whole document by 90° steps, preview the result and save the corrected PDF.
Images to PDF
Combine photos and scans into a single PDF, one image per page, with page size, orientation and margin options.
Developer Tools
JSON Formatter & Validator
Validate JSON with precise error locations, then pretty-print, minify or sort keys without changing any value.
Base64 Encoder & Decoder
Encode text or files to Base64 (standard or URL-safe) and decode Base64 or data: URLs back to text or a downloadable file.
URL Encoder & Decoder
Percent-encode or decode text, query values and full URLs, and inspect URL parameters.
SHA-256 Hash Generator
Calculate SHA-256 checksums of text or large files locally and check them against an expected hash.
Regex Tester
Try a regular expression on your text and see every match, capture group and replacement as you type.
Calculators & Everyday Tools
Word Counter
Live word, character, sentence and paragraph counts with reading time, frequent words and an optional limit.
Date Difference Calculator
Find the time between two dates in days, weeks, months and years, or add and subtract time from a date.
Percentage Calculator
Six quick percentage calculators – percent of, percent change, increase/decrease, difference and discount – with formulas.
Unit Converter
Convert between metric, US customary and imperial units in ten categories, with a table of every unit.
QR Code Generator
Make QR codes for links, text, Wi-Fi networks, email, phone numbers and SMS, and download them as PNG or SVG.