Local-first browser tools
Your files are processed in your browser — not on our servers. No account required. When cloud is needed, we tell you first.
Marketing & SEO
View allURL Shortener
Create custom, trackable short links instantly. Lightning-fast edge redirects optimized for SEO.
QR Code Generator
Create custom QR codes for your links, texts, WiFi or vCards instantly. 100% private.
UTM Link Builder
Add tracking parameters to your URLs to correctly measure your campaigns in Google Analytics.
SEO Link Previewer
Check how your web link will look when shared on Twitter (X), Facebook, LinkedIn or WhatsApp.
Text Tools
View allText to PDF without limits
Convert your .txt files, notes or text blocks to PDF instantly. 100% private, your text never travels to our servers.
Word to PDF
Convert DOCX files to PDF in your browser. Free, no sign-up, and processed locally.
Word Counter
Count words, characters and paragraphs in real time. Ideal to measure your text for Twitter, essays or school assignments.
Case Converter
Convert text between UPPERCASE, lowercase, and Title Case in 1 click. Save texts written with Caps Lock accidentally on.
Image Tools
View allMerge Images to PDF
Join your photos (JPG, PNG) into a single PDF in seconds. No watermarks, free and without uploading your personal photos to the internet.
Remove Background with Local AI
Remove backgrounds from photos magically and without waiting. We run an Artificial Intelligence model directly on your device for free.
Image Resizer
Resize and crop your photos keeping quality and proportion. 100% private from your browser.
Instagram Photo Resizer
Resize your photos to the perfect Instagram dimensions. Choose a format, upload your image, download — done.
Developer Tools
View allCode Formatters
Format and beautify JSON, XML, SQL, CSS and YAML. Free and private code tools in your browser.
Password Generator
Create hyper-secure and random passwords right on your device. Completely private and offline.
UUID / GUID Generator
Generate multiple Universal Unique Identifiers (v4) in milliseconds for your databases or dev projects.
Color Converter
Convert colors between HEX, RGB, HSL, HSV and CMYK instantly. Paste any color value and get all formats in one click.
Why is OToolbox 100% free?
We were tired of visiting pages full of fake "Download" buttons, intrusive pop-ups, limits of "only 2 files a day" and the obligation to create an account just to merge two PDFs or remove a background.
That's why we created OToolbox. We wanted a clean, ultra-fast and secure corner of the internet. There are no distant servers processing your confidential documents or private photos here. All the heavy lifting is done by the power of your own browser locally.
No tricks. No limits. Just tools that work.