Every tool you need.
None of your files.
PDFs, images, text, code, colors and calculators — all running inside your browser. Nothing is uploaded, nothing is stored, nothing is tracked. Ducky just gets it done.
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The tools people reach for most.
Merge PDF
Combine several PDFs into one file, in the order you choose.
Background Remover
Click a background color to erase it, with tolerance and edge feathering you control.
Image to Text (OCR)
Extract text from a photo, screenshot or scan using optical character recognition.
Image Cropper
Drag a crop box over your image, lock it to a ratio, and export the exact region.
Image Compressor
Shrink JPG, PNG and WEBP file sizes with a quality slider you control.
Sign PDF
Draw your signature and place it on any page of a PDF.
Batch Image Converter
Resize, compress and convert dozens of images at once, then download them as a ZIP.
Word Counter
Count words, characters, sentences, paragraphs and reading time as you type.
JSON Formatter
Pretty-print, validate and tidy JSON with the indentation you prefer.
QR Code Generator
Create QR codes for links, text, Wi-Fi, contacts and more — no tracking, no expiry.
What Can I Do With This File?
Drop any file to identify what it really is, then jump straight to a tool that can work on it — with the file already loaded.
Images to PDF
Turn JPGs and PNGs into a single PDF — one image per page.
Browse by category
Every tool, sorted into somewhere sensible.
PDF 17
Merge, split, rotate, watermark and convert PDFs without uploading a thing.
Image 42
Resize, compress, crop, convert and filter images right in the browser.
Convert 18
Move data between formats — JSON, CSV, YAML, Base64, Markdown and more.
Text 57
Count, clean, transform, encode and analize text at speed.
Developer 43
Formatters, hashes, tokens, regex and the daily grind of building software.
Calculators 46
Money, health, maths, dates and everyday numbers worked out for you.
Units 19
Convert length, weight, temperature, data, speed and everything between.
Color 14
Pick, convert, blend and check colors — plus CSS you can paste straight in.
Web & SEO 12
Meta tags, slugs, UTM links, robots.txt and on-page essentials.
Media 9
Audio and video utilities that work without a single upload.
AI & Writing 13
Clean up AI output, count tokens, estimate cost, and spot the tells — all on your device.
Generators 12
Passwords, UUIDs, dice, picks and useful randomness on tap.
Why it works this way
The whole site is a static page and a pile of JavaScript. That turns out to matter.
Your files stay put
Every tool runs on your own device. There is no upload step, no server copy, and nothing to delete afterwards — because nothing ever left.
No round trip, no wait
Other tools upload, queue, process and download. Ducky skips all four. Most jobs finish before a progress bar would have appeared.
Free, with no catch
No accounts, no daily limits, no watermarks on your output, no “upgrade to download”. There is nothing to sign up for.
Works offline
Once a tool page has loaded, it keeps working with the network off. Handy on planes, trains and hotel wifi.