Theoryma Tools
All Features
Pick a tool below, or search for the feature you need.
What's New · Jun 2026
Converting Tools
Image Tools
Convert and compress images (PNG/JPG/WEBP) and combine them into a PDF.
Converting Tools
PDF Tools
Convert PDFs to images, merge multiple PDFs, and split one PDF per page.
Diff Checker
JSON Compare
Compare two JSON payloads side-by-side and find their differences — ignore field order or match exactly.
File Generator
Generator File Tes
Create dummy files of an exact size (KB–MB) for testing — pick an image type (PNG/JPG/WEBP/GIF/BMP), PDF, or TXT. Perfect for testing upload limits without hunting for a file.
Test API Key
Test API Keys
Validate a batch of API keys against a provider — flags expired, rate-limited, or invalid keys.
