Every tool you need to work with PDFs, images & text
opikini.com brings together 23 free, easy-to-use online tools. Merge and compress PDFs, resize and convert images, count words, create QR codes and much more — all inside your browser, so your files stay private.
- 100% free
- No sign-up
- No upload
- No watermark
All tools in one place
Choose a tool to get started. No installation, no account — just results.
Merge PDF
Combine several PDFs into a single file, in exactly the order you want.
Split PDF
Separate a PDF into several files or pull out just the pages you need.
Compress PDF
Make PDFs smaller so they fit email limits and upload forms.
Rotate PDF
Fix sideways or upside-down pages and save the rotation permanently.
JPG to PDF
Turn photos and scans into a single, neat PDF document.
PDF to JPG
Save each PDF page as a sharp JPG or PNG image.
Add Page Numbers
Insert page numbers into a PDF with your choice of position and style.
Watermark PDF
Stamp CONFIDENTIAL, DRAFT or your name across every page.
Remove PDF Pages
Delete blank, duplicate or unwanted pages from a PDF.
Compress Image
Shrink JPG, PNG and WebP files while keeping them sharp.
Resize Image
Change image dimensions by pixels or percentage, in bulk.
Convert Image
Convert between JPG, PNG and WebP in a click.
Crop Image
Cut out the part of a picture you want, with handy aspect presets.
Rotate & Flip Image
Turn sideways photos upright and mirror images in bulk.
Image to Base64
Encode images as Base64 data URIs for HTML, CSS and email.
Word Counter
Count words, characters, sentences and reading time as you type.
Case Converter
Switch text between UPPER, lower, Title, Sentence and code cases.
QR Code Generator
Make QR codes for links, Wi-Fi, email and more — PNG or SVG.
Password Generator
Create strong, random passwords with a live strength meter.
JSON Formatter
Beautify, validate and minify JSON with clear error messages.
Base64 Encode / Decode
Convert text to and from Base64, with full UTF-8 support.
Age Calculator
Find exact age in years, months and days, plus next birthday.
Percentage Calculator
Work out X% of a number, percent change, and add or remove a percentage.
How it works
Three simple steps. Your files never leave your computer.
Choose your file
Select a file or drag it into the tool. It is opened directly by your browser.
Pick your options
Adjust the settings — compression level, page range, size, format and more.
Download the result
Processing happens on your device in seconds. Save your new file instantly.
Why people choose opikini.com
Simple tools built around speed, quality and your privacy.
Private by design
Files are processed in your browser and never uploaded to any server.
Completely free
No accounts, no limits, no watermarks and no hidden premium tier.
Fast
No waiting for uploads and downloads — results appear in seconds.
Works everywhere
Use every tool on desktop, tablet or phone in any modern browser.
High quality
Built on trusted open-source engines used by millions, like PDF.js.
Helpful guides
Every tool comes with clear instructions, tips and answers to common questions.
Free online tools that keep your files private
Most online converters ask you to upload your documents to their servers. That is slow on large files, and it means your contracts, bank statements, IDs and personal photos sit on a computer you do not control. opikini.com takes a different approach. Our tools are built with modern web technology that lets your own browser do the processing. The page loads the software, and your computer handles the file locally — nothing is sent to us.
The result is a set of tools that are faster, more private and available to everyone for free. Students can turn photographed notes into a PDF, job seekers can shrink their CV to fit an upload limit, small businesses can watermark draft proposals, developers can format JSON and encode Base64, and bloggers can optimise images for faster pages.
Popular tasks
- Combine several PDFs into one for a single, tidy attachment.
- Reduce PDF size for email and online forms.
- Convert phone photos to PDF for applications and receipts.
- Compress images by up to 90% for websites and email.
- Create a QR code for your website, menu or Wi-Fi.
- Count words and characters in essays and articles.
From the blog
Guides and tips to help you get more from your documents and images.
How to Reduce PDF File Size Without Losing Quality
Why PDFs get so big and seven practical ways to make them smaller for email and uploads — without making them look bad.
JPG vs PNG vs WebP: Which Image Format Should You Use?
A plain-English comparison of JPG, PNG and WebP — how each one works, when to use it, and how to choose the right format every time.
How to Create a Strong Password You Can Actually Remember
What really makes a password strong, why length beats complexity, and a simple system for passwords you can remember.
Frequently asked questions
Are the tools on opikini.com really free?
Yes. Every tool is completely free with no sign-up, no daily limits and no watermarks. The site is supported by advertising.
Are my files uploaded to your servers?
No. All processing happens inside your web browser on your own device. Your PDFs, images and text are never uploaded, stored or viewed by us.
Do I need to install anything?
No. The tools work in any modern browser — Chrome, Edge, Firefox or Safari — on Windows, macOS, Linux, Android and iOS.
Is there a file size limit?
There is no server-side limit because nothing is uploaded. Very large files depend on your device's memory, but most computers handle hundreds of pages or images easily.
Can I use opikini.com on my phone?
Yes. Every page is mobile-friendly, and tools such as Compress Image, JPG to PDF and the QR Code Generator work smoothly on phones and tablets.
Ready to get started?
Pick a tool and finish your task in seconds — free, private and no sign-up.
Browse all 23 tools