Browser utilities
Developer Tools
All tools are free. No account, subscription or API key required.
Merge PDF, split PDF, format JSON, encode Base64, generate UUIDs — each tool has its own page for search and sharing.
Split PDF
Split a PDF into individual pages or custom page groups.
Image to PDF
Combine JPG, PNG and WebP images into a PDF.
PDF to Image
Export selected PDF pages as PNG or JPEG images.
Online Compiler
Write and run JavaScript, Python, HTML and CSS in our Online Compiler.
Open compiler →Tool questions
Are Codementrix developer tools free?
Yes. Every public tool is free and does not require an account or API key.
Can I merge PDF files online here?
Yes. Open the Merge PDF tool, add files in order, and download the combined PDF. Processing stays in your browser.
Do files upload to a server?
PDF and formatter tools run in your browser. We do not ask you to create an account to use them.